FoamForge.
Commercial buoyancy references

Explore published commercial materials.

Explore published finished-foam properties alongside their source limits. These references describe supplier products, not recipes or FoamForge predictions.

What the Bluefin example tells us

ESS reports supplying Bluefin foam at 30 lb/ft³ (approximately 481 kg/m³), rated to 4,500 m. Its case study does not disclose the formulation or identify a catalogue grade. AZ-30 is a separate reference: ESS’s depth–density chart lists 480 kg/m³ at 4,500 m, while its grade datasheet contains conflicting density units.

Our stored epoxy compositions start at 547 kg/m³. That is a coverage limit of our fixed resin, particle and loading inputs. It is not a physical minimum for syntactic foam, a measured prediction error, or evidence that this computed composition can operate at 4,500 m.

ESS Bluefin case study ↗ESS depth–density chart ↗Review your actual ingredients →Browse particle ingredients →

Actual ingredient densities can support an ideal mixture-density estimate. New strength or pressure predictions require the specific formulation, process and measured validation data.

Finished commercial materials · supplier reports

Explore the commercial reference catalogue

Ordered by nominal density. Test conditions, tolerances and material architectures differ. A published depth screens a supplier reference; it does not qualify a FoamForge composition or establish an equivalent replacement.

36 of 36 matching references · sources reviewed 2026-10-10

ESS / MacroFoam-18

fiber-reinforced macrospheres in syntactic matrix · Resin chemistry not established

Reference only
Nominal density
290 kg/m³
Published depth
300 m
Published hydrostatic crush
Not established

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies

Typical properties. Test standards, pressure dwell time, temperature and sample geometry are not stated on the source table.

Service pressure: not established in selected source. Compressive strength: 8 MPa (Compressive strength; source does not specify uniaxial definition, offset, or test standard).

  • Chart nominal density 290 kg/m³; separate typical-property webpage gives 0.29 ± 0.03 g/cm³. Webpage tolerance is retained as a separate reported fact, not assigned to the chart nominal.
  • Supplier publishes hydrostatic crush as depth: 450 m, not pressure. crush_mpa remains null; no unreported seawater density or conversion is assumed.
  • Architecture contains larger fiber-reinforced spheres and is outside the current single-microsphere model catalogue.
  • Specific resin chemistry, recipe and test standard are not disclosed.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / MacroFoam-20

fiber-reinforced macrospheres in syntactic matrix · Resin chemistry not established

Reference only
Nominal density
320 kg/m³
Published depth
500 m
Published hydrostatic crush
Not established

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies

Typical properties. Test standards, pressure dwell time, temperature and sample geometry are not stated on the source table.

Service pressure: not established in selected source. Compressive strength: 12 MPa (Compressive strength; source does not specify uniaxial definition, offset, or test standard).

  • Chart nominal density 320 kg/m³; separate typical-property webpage gives 0.32 ± 0.02 g/cm³. Webpage tolerance is retained as a separate reported fact, not assigned to the chart nominal.
  • Supplier publishes hydrostatic crush as depth: 760 m, not pressure. crush_mpa remains null; no unreported seawater density or conversion is assumed.
  • Architecture contains larger fiber-reinforced spheres and is outside the current single-microsphere model catalogue.
  • Specific resin chemistry, recipe and test standard are not disclosed.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / MacroFoam-22

fiber-reinforced macrospheres in syntactic matrix · Resin chemistry not established

Reference only
Nominal density
350 kg/m³
Published depth
750 m
Published hydrostatic crush
Not established

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies

Typical properties. Test standards, pressure dwell time, temperature and sample geometry are not stated on the source table.

Service pressure: not established in selected source. Compressive strength: 13 MPa (Compressive strength; source does not specify uniaxial definition, offset, or test standard).

  • Chart nominal density 350 kg/m³; separate typical-property webpage gives 0.35 ± 0.02 g/cm³. Webpage tolerance is retained as a separate reported fact, not assigned to the chart nominal.
  • Supplier publishes hydrostatic crush as depth: 1135 m, not pressure. crush_mpa remains null; no unreported seawater density or conversion is assumed.
  • Architecture contains larger fiber-reinforced spheres and is outside the current single-microsphere model catalogue.
  • Specific resin chemistry, recipe and test standard are not disclosed.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / MZ-22

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
350 kg/m³
Published depth
1,000 m
Published hydrostatic crush
26.7 MPa

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies (1)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 10 MPa. Compressive strength: 22 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Depth and nominal density use the ESS overview chart. The separate PDF reports 22 ± 2 lb/ft³ (0.35 ± 0.03 g/cm³); its tolerance is not automatically applied to the chart nominal.

Alternate published observations

  • Compressive strength: 24.82 MPa. Calculated from printed 3,600 psi, whereas same PDF prints 22 MPa. Neither unit is silently corrected. ESS MZ technical data sheet ↗

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / BZ-24

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
385 kg/m³
Published depth
2,000 m
Published hydrostatic crush
32 MPa

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies (2)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 20.4 MPa. Compressive strength: 23 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Depth and nominal density use the ESS overview chart. The separate PDF reports 24 ± 2 lb/ft³ (0.39 ± 0.03 g/cm³); its tolerance is not automatically applied to the chart nominal.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Trelleborg / TG2000

hollow-glass-microsphere syntactic foam · Resin chemistry not established

Reference only
Nominal density
385 kg/m³
Published depth
2,000 m
Published hydrostatic crush
Not established

Typical metric-range density from the current webpage; no tolerance stated. Linked PDF differences remain unresolved.

Region: Metric range: not available in North America (current product page). The linked 2020-named PDF says not available in the US.

Sources, conditions & discrepancies

Typical values. No temperature, duration, crush test, or compressive test conditions reported in reviewed TG tables.

Service pressure: 20 MPa. Compressive strength: not established in selected source.

  • Current webpage selected for display; linked PDF is retained as a separate observation. Neither source supplies a grade-specific TG resin chemistry, density tolerance, hydrostatic crush pressure, or compressive strength. Do not label TG as epoxy merely because DS and EL families are described as epoxy.
  • Current webpage spells grade without hyphen; linked PDF spells it with hyphen. Grade alias is traceability only, not an equivalence to an imperial TG grade.
  • Service pressure is converted from vendor-published bar, not inferred from depth.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / MacroFoam-24

fiber-reinforced macrospheres in syntactic matrix · Resin chemistry not established

Reference only
Nominal density
390 kg/m³
Published depth
1,000 m
Published hydrostatic crush
Not established

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies

Typical properties. Test standards, pressure dwell time, temperature and sample geometry are not stated on the source table.

Service pressure: not established in selected source. Compressive strength: 14 MPa (Compressive strength; source does not specify uniaxial definition, offset, or test standard).

  • Chart nominal density 390 kg/m³; separate typical-property webpage gives 0.39 ± 0.02 g/cm³. Webpage tolerance is retained as a separate reported fact, not assigned to the chart nominal.
  • Supplier publishes hydrostatic crush as depth: 1515 m, not pressure. crush_mpa remains null; no unreported seawater density or conversion is assumed.
  • Architecture contains larger fiber-reinforced spheres and is outside the current single-microsphere model catalogue.
  • Specific resin chemistry, recipe and test standard are not disclosed.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Base Materials / Subtec 2000

hollow-glass-microsphere syntactic foam · novel thermoset polymer (chemistry unspecified)

Reference only
Nominal density
400 kg/m³
Published depth
2,000 m
Published hydrostatic crush
>33.78 MPa

Supplier nominal density; tolerance is not stated. Operating and crush pressures use different temperatures; see source details.

Sources, conditions & discrepancies

Maximum operating depth and pressure: 4°C. Hydrostatic crush pressure: 23°C. No test standard, loading rate, specimen geometry, or soak duration given in reviewed table.

Service pressure: 19.99 MPa. Compressive strength: not established in selected source.

  • Crush value is a strict lower bound, not an equality or measured mean.
  • The source says nominal density but gives no density tolerance.
  • Original repository epoxy classification was unsupported; source specifies only a novel thermoset polymer.
  • Service and crush pressures converted from published psi; no depth-pressure conversion used.
  • No compressive strength value or geographic restriction is stated in the reviewed product page.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Base Materials / Subtec 3000

hollow-glass-microsphere syntactic foam · novel thermoset polymer (chemistry unspecified)

Reference only
Nominal density
415 kg/m³
Published depth
3,000 m
Published hydrostatic crush
>37.54 MPa

Supplier nominal density; tolerance is not stated. Operating and crush pressures use different temperatures; see source details.

Sources, conditions & discrepancies

Maximum operating depth and pressure: 4°C. Hydrostatic crush pressure: 23°C. No test standard, loading rate, specimen geometry, or soak duration given in reviewed table.

Service pressure: 30.03 MPa. Compressive strength: not established in selected source.

  • Crush value is a strict lower bound, not an equality or measured mean.
  • The source says nominal density but gives no density tolerance.
  • Original repository epoxy classification was unsupported; source specifies only a novel thermoset polymer.
  • Service and crush pressures converted from published psi; no depth-pressure conversion used.
  • No compressive strength value or geographic restriction is stated in the reviewed product page.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Trelleborg / TG3000

hollow-glass-microsphere syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
415 kg/m³
Published depth
3,000 m
Published hydrostatic crush
Not established

Typical metric-range density from the current webpage; no tolerance stated. Linked PDF differences remain unresolved.

Region: Metric range: not available in North America (current product page). The linked 2020-named PDF says not available in the US.

Sources, conditions & discrepancies (1)

Typical values. No temperature, duration, crush test, or compressive test conditions reported in reviewed TG tables.

Service pressure: 30 MPa. Compressive strength: not established in selected source.

  • Current webpage selected for display; linked PDF is retained as a separate observation. Neither source supplies a grade-specific TG resin chemistry, density tolerance, hydrostatic crush pressure, or compressive strength. Do not label TG as epoxy merely because DS and EL families are described as epoxy.
  • Current webpage spells grade without hyphen; linked PDF spells it with hyphen. Grade alias is traceability only, not an equivalence to an imperial TG grade.
  • Service pressure is converted from vendor-published bar, not inferred from depth.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / BZ-26

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
416 kg/m³
Published depth
3,000 m
Published hydrostatic crush
49.4 MPa

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies (2)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 29.6 MPa. Compressive strength: 35 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Depth and nominal density use the ESS overview chart. The separate PDF reports 26 ± 2 lb/ft³ (0.42 ± 0.03 g/cm³); its tolerance is not automatically applied to the chart nominal.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / BZ-28

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
450 kg/m³
Published depth
3,400 m
Published hydrostatic crush
63.9 MPa

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies (1)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 37.9 MPa. Compressive strength: 42 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Depth and nominal density use the ESS overview chart. The separate PDF reports 28 ± 2 lb/ft³ (0.45 ± 0.03 g/cm³); its tolerance is not automatically applied to the chart nominal.

Alternate published observations

  • Service pressure: 38.13 MPa. Calculated from printed 5,530 psi; same source prints 379 bar (37.9 MPa). Printed metric column is retained. ESS BZ technical data sheet ↗

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / AZ-29

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
465 kg/m³
Published depth
4,000 m
Published hydrostatic crush
60.5 MPa

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies (1)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 39.8 MPa. Compressive strength: 46 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Depth and nominal density use the ESS overview chart. The separate PDF reports 29 ± 2 lb/ft³ (0.46 ± 0.03 g/cm³); its tolerance is not automatically applied to the chart nominal.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Base Materials / Subtec 4000

hollow-glass-microsphere syntactic foam · novel thermoset polymer (chemistry unspecified)

Reference only
Nominal density
468 kg/m³
Published depth
4,000 m
Published hydrostatic crush
>50.68 MPa

Supplier nominal density; tolerance is not stated. Operating and crush pressures use different temperatures; see source details.

Sources, conditions & discrepancies

Maximum operating depth and pressure: 4°C. Hydrostatic crush pressure: 23°C. No test standard, loading rate, specimen geometry, or soak duration given in reviewed table.

Service pressure: 40 MPa. Compressive strength: not established in selected source.

  • Crush value is a strict lower bound, not an equality or measured mean.
  • The source says nominal density but gives no density tolerance.
  • Original repository epoxy classification was unsupported; source specifies only a novel thermoset polymer.
  • Service and crush pressures converted from published psi; no depth-pressure conversion used.
  • No compressive strength value or geographic restriction is stated in the reviewed product page.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Trelleborg / TG4000

hollow-glass-microsphere syntactic foam · Resin chemistry not established

Reference only
Nominal density
468 kg/m³
Published depth
4,000 m
Published hydrostatic crush
Not established

Typical metric-range density from the current webpage; no tolerance stated. Linked PDF differences remain unresolved.

Region: Metric range: not available in North America (current product page). The linked 2020-named PDF says not available in the US.

Sources, conditions & discrepancies

Typical values. No temperature, duration, crush test, or compressive test conditions reported in reviewed TG tables.

Service pressure: 40 MPa. Compressive strength: not established in selected source.

  • Current webpage selected for display; linked PDF is retained as a separate observation. Neither source supplies a grade-specific TG resin chemistry, density tolerance, hydrostatic crush pressure, or compressive strength. Do not label TG as epoxy merely because DS and EL families are described as epoxy.
  • Current webpage spells grade without hyphen; linked PDF spells it with hyphen. Grade alias is traceability only, not an equivalence to an imperial TG grade.
  • Service pressure is converted from vendor-published bar, not inferred from depth.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Base Materials / Subtec 5000

hollow-glass-microsphere syntactic foam · novel thermoset polymer (chemistry unspecified)

Reference only
Nominal density
480 kg/m³
Published depth
5,000 m
Published hydrostatic crush
>68.95 MPa

Supplier nominal density; tolerance is not stated. Operating and crush pressures use different temperatures; see source details.

Sources, conditions & discrepancies

Maximum operating depth and pressure: 4°C. Hydrostatic crush pressure: 23°C. No test standard, loading rate, specimen geometry, or soak duration given in reviewed table.

Service pressure: 50 MPa. Compressive strength: not established in selected source.

  • Crush value is a strict lower bound, not an equality or measured mean.
  • The source says nominal density but gives no density tolerance.
  • Original repository epoxy classification was unsupported; source specifies only a novel thermoset polymer.
  • Service and crush pressures converted from published psi; no depth-pressure conversion used.
  • No compressive strength value or geographic restriction is stated in the reviewed product page.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / AZ-30

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
480 kg/m³
Published depth
4,500 m
Published hydrostatic crush
71.1 MPa

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies (2)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 45 MPa. Compressive strength: 55 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Depth and nominal density use the ESS overview chart. The separate PDF reports 30 ± 2 lb/ft³ (0.46 ± 0.03 g/cm³); its tolerance is not automatically applied to the chart nominal.
  • PDF density 30 lb/ft³ converts to approximately 480.55 kg/m³, whereas its parenthetical 0.46 g/cm³ is 460 kg/m³. Chart 480 is the selected displayed nominal, not confirmation of which PDF value the supplier intended.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Trelleborg / TG5000

hollow-glass-microsphere syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
480 kg/m³
Published depth
5,000 m
Published hydrostatic crush
Not established

Typical metric-range density from the current webpage; no tolerance stated. Linked PDF differences remain unresolved.

Region: Metric range: not available in North America (current product page). The linked 2020-named PDF says not available in the US.

Sources, conditions & discrepancies (1)

Typical values. No temperature, duration, crush test, or compressive test conditions reported in reviewed TG tables.

Service pressure: 50 MPa. Compressive strength: not established in selected source.

  • Current webpage selected for display; linked PDF is retained as a separate observation. Neither source supplies a grade-specific TG resin chemistry, density tolerance, hydrostatic crush pressure, or compressive strength. Do not label TG as epoxy merely because DS and EL families are described as epoxy.
  • Current webpage spells grade without hyphen; linked PDF spells it with hyphen. Grade alias is traceability only, not an equivalence to an imperial TG grade.
  • Service pressure is converted from vendor-published bar, not inferred from depth.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Base Materials / Subtec 6000

hollow-glass-microsphere syntactic foam · novel thermoset polymer (chemistry unspecified)

Reference only
Nominal density
495 kg/m³
Published depth
6,000 m
Published hydrostatic crush
>77 MPa

Supplier nominal density; tolerance is not stated. Operating and crush pressures use different temperatures; see source details.

Sources, conditions & discrepancies

Maximum operating depth and pressure: 4°C. Hydrostatic crush pressure: 23°C. No test standard, loading rate, specimen geometry, or soak duration given in reviewed table.

Service pressure: 60 MPa. Compressive strength: not established in selected source.

  • Crush value is a strict lower bound, not an equality or measured mean.
  • The source says nominal density but gives no density tolerance.
  • Original repository epoxy classification was unsupported; source specifies only a novel thermoset polymer.
  • Service and crush pressures converted from published psi; no depth-pressure conversion used.
  • No compressive strength value or geographic restriction is stated in the reviewed product page.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / AZ-31

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
495 kg/m³
Published depth
5,000 m
Published hydrostatic crush
88.3 MPa

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies (2)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 50.3 MPa. Compressive strength: 66 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Depth and nominal density use the ESS overview chart. The separate PDF reports 31 ± 2 lb/ft³ (0.50 ± 0.03 g/cm³); its tolerance is not automatically applied to the chart nominal.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

SynFoam / DW-31

syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
496.57 ± 32.04 kg/m³
Published depth
5,330 m
Published hydrostatic crush
89.63 MPa

Supplier nominal density and ±2 lb/ft³ tolerance converted to kg/m³. This is a tolerance, not a prediction interval.

Sources, conditions & discrepancies (2)

Water absorption is specified for 24 hours at depth. Temperature, pressure loading history, specimen geometry, and mechanical test standards are not stated.

Service pressure: 54.88 MPa. Compressive strength: 68.95 MPa (Compressive strength; test method and loading configuration not specified.).

  • Current product webpage selected for displayed properties. Official PDF (copyright 2015) retained as another observation.
  • Density and tolerance are converted from published lb/ft³; pressure values converted from published psi.
  • Reviewed DW sources do not identify resin chemistry. The old epoxy label was unsupported.
  • Crush and compressive strength are distinct reported quantities; no uniaxial test configuration or test standard was specified.
  • All grades have a compressive-modulus conflict between webpage and PDF; confirm current technical data sheet with supplier.
  • Published extreme-depth ratings are supplier claims, not independently established ocean operating conditions or FoamForge qualification.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Trelleborg / TG6000

hollow-glass-microsphere syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
513 kg/m³
Published depth
6,000 m
Published hydrostatic crush
Not established

Typical metric-range density from the current webpage; no tolerance stated. Linked PDF differences remain unresolved.

Region: Metric range: not available in North America (current product page). The linked 2020-named PDF says not available in the US.

Sources, conditions & discrepancies (1)

Typical values. No temperature, duration, crush test, or compressive test conditions reported in reviewed TG tables.

Service pressure: 60 MPa. Compressive strength: not established in selected source.

  • Current webpage selected for display; linked PDF is retained as a separate observation. Neither source supplies a grade-specific TG resin chemistry, density tolerance, hydrostatic crush pressure, or compressive strength. Do not label TG as epoxy merely because DS and EL families are described as epoxy.
  • Current webpage spells grade without hyphen; linked PDF spells it with hyphen. Grade alias is traceability only, not an equivalence to an imperial TG grade.
  • Service pressure is converted from vendor-published bar, not inferred from depth.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

SynFoam / DW-33

syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
528.61 ± 32.04 kg/m³
Published depth
6,250 m
Published hydrostatic crush
98.25 MPa

Supplier nominal density and ±2 lb/ft³ tolerance converted to kg/m³. This is a tolerance, not a prediction interval.

Sources, conditions & discrepancies (2)

Water absorption is specified for 24 hours at depth. Temperature, pressure loading history, specimen geometry, and mechanical test standards are not stated.

Service pressure: 64.4 MPa. Compressive strength: 77.57 MPa (Compressive strength; test method and loading configuration not specified.).

  • Current product webpage selected for displayed properties. Official PDF (copyright 2015) retained as another observation.
  • Density and tolerance are converted from published lb/ft³; pressure values converted from published psi.
  • Reviewed DW sources do not identify resin chemistry. The old epoxy label was unsupported.
  • Crush and compressive strength are distinct reported quantities; no uniaxial test configuration or test standard was specified.
  • All grades have a compressive-modulus conflict between webpage and PDF; confirm current technical data sheet with supplier.
  • Published extreme-depth ratings are supplier claims, not independently established ocean operating conditions or FoamForge qualification.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Base Materials / Subtec 7000

hollow-glass-microsphere syntactic foam · novel thermoset polymer (chemistry unspecified)

Reference only
Nominal density
544 kg/m³
Published depth
7,000 m
Published hydrostatic crush
>86.18 MPa

Supplier nominal density; tolerance is not stated. Operating and crush pressures use different temperatures; see source details.

Sources, conditions & discrepancies

Maximum operating depth and pressure: 4°C. Hydrostatic crush pressure: 23°C. No test standard, loading rate, specimen geometry, or soak duration given in reviewed table.

Service pressure: 70 MPa. Compressive strength: not established in selected source.

  • Crush value is a strict lower bound, not an equality or measured mean.
  • The source says nominal density but gives no density tolerance.
  • Original repository epoxy classification was unsupported; source specifies only a novel thermoset polymer.
  • Service and crush pressures converted from published psi; no depth-pressure conversion used.
  • No compressive strength value or geographic restriction is stated in the reviewed product page.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Trelleborg / TG7000

hollow-glass-microsphere syntactic foam · Resin chemistry not established

Reference only
Nominal density
544 kg/m³
Published depth
7,000 m
Published hydrostatic crush
Not established

Typical metric-range density from the current webpage; no tolerance stated. Linked PDF differences remain unresolved.

Region: Metric range: not available in North America (current product page). The linked 2020-named PDF says not available in the US.

Sources, conditions & discrepancies

Typical values. No temperature, duration, crush test, or compressive test conditions reported in reviewed TG tables.

Service pressure: 70 MPa. Compressive strength: not established in selected source.

  • Current webpage selected for display; linked PDF is retained as a separate observation. Neither source supplies a grade-specific TG resin chemistry, density tolerance, hydrostatic crush pressure, or compressive strength. Do not label TG as epoxy merely because DS and EL families are described as epoxy.
  • Current webpage spells grade without hyphen; linked PDF spells it with hyphen. Grade alias is traceability only, not an equivalence to an imperial TG grade.
  • Service pressure is converted from vendor-published bar, not inferred from depth.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / HZ-34

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
545 kg/m³
Published depth
7,000 m
Published hydrostatic crush
105.7 MPa

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies (1)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 70 MPa. Compressive strength: 85 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Depth and nominal density use the ESS overview chart. The separate PDF reports 34 ± 2 lb/ft³ (0.55 ± 0.03 g/cm³); its tolerance is not automatically applied to the chart nominal.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / AZ-34

resin with hollow glass microspheres · Resin chemistry not established

Reference onlyHistorical reference
Nominal density
550 ± 30 kg/m³
Published depth
6,000 m
Published hydrostatic crush
97.1 MPa

Density and tolerance from the grade source; this grade is absent from the current overview chart.

Sources, conditions & discrepancies

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 62 MPa. Compressive strength: 69 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Density and depth use this grade’s datasheet; grade is not listed in the current overview chart.
  • Historical-reference classification reflects omission from the newer ESS260608 PDF and overview chart; it does not assert that the grade is discontinued. Obtain supplier confirmation for availability.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

SynFoam / DW-35

syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
560.65 ± 32.04 kg/m³
Published depth
7,680 m
Published hydrostatic crush
110.32 MPa

Supplier nominal density and ±2 lb/ft³ tolerance converted to kg/m³. This is a tolerance, not a prediction interval.

Sources, conditions & discrepancies (2)

Water absorption is specified for 24 hours at depth. Temperature, pressure loading history, specimen geometry, and mechanical test standards are not stated.

Service pressure: 79.08 MPa. Compressive strength: 89.63 MPa (Compressive strength; test method and loading configuration not specified.).

  • Current product webpage selected for displayed properties. Official PDF (copyright 2015) retained as another observation.
  • Density and tolerance are converted from published lb/ft³; pressure values converted from published psi.
  • Reviewed DW sources do not identify resin chemistry. The old epoxy label was unsupported.
  • Crush and compressive strength are distinct reported quantities; no uniaxial test configuration or test standard was specified.
  • All grades have a compressive-modulus conflict between webpage and PDF; confirm current technical data sheet with supplier.
  • Published extreme-depth ratings are supplier claims, not independently established ocean operating conditions or FoamForge qualification.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

SynFoam / DW-37

syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
592.68 ± 32.04 kg/m³
Published depth
8,690 m
Published hydrostatic crush
125.48 MPa

Supplier nominal density and ±2 lb/ft³ tolerance converted to kg/m³. This is a tolerance, not a prediction interval.

Sources, conditions & discrepancies (2)

Water absorption is specified for 24 hours at depth. Temperature, pressure loading history, specimen geometry, and mechanical test standards are not stated.

Service pressure: 89.49 MPa. Compressive strength: 95.84 MPa (Compressive strength; test method and loading configuration not specified.).

  • Current product webpage selected for displayed properties. Official PDF (copyright 2015) retained as another observation.
  • Density and tolerance are converted from published lb/ft³; pressure values converted from published psi.
  • Reviewed DW sources do not identify resin chemistry. The old epoxy label was unsupported.
  • Crush and compressive strength are distinct reported quantities; no uniaxial test configuration or test standard was specified.
  • All grades have a compressive-modulus conflict between webpage and PDF; confirm current technical data sheet with supplier.
  • Published extreme-depth ratings are supplier claims, not independently established ocean operating conditions or FoamForge qualification.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / MZ-38

resin with hollow glass microspheres · Resin chemistry not established

Reference only
Nominal density
610 ± 30 kg/m³
Published depth
1,000 m
Published hydrostatic crush
56.2 MPa

Density and tolerance from the grade source; this grade is absent from the current overview chart.

Sources, conditions & discrepancies

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 10 MPa. Compressive strength: 30 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Density and depth use this grade’s datasheet; grade is not listed in the current overview chart.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

SynFoam / DW-39

syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
624.72 ± 32.04 kg/m³
Published depth
11,730 m
Published hydrostatic crush
134.45 MPa

Supplier nominal density and ±2 lb/ft³ tolerance converted to kg/m³. This is a tolerance, not a prediction interval.

Sources, conditions & discrepancies (1)

Water absorption is specified for 24 hours at depth. Temperature, pressure loading history, specimen geometry, and mechanical test standards are not stated.

Service pressure: 120.8 MPa. Compressive strength: 99.97 MPa (Compressive strength; test method and loading configuration not specified.).

  • Current product webpage selected for displayed properties. Official PDF (copyright 2015) retained as another observation.
  • Density and tolerance are converted from published lb/ft³; pressure values converted from published psi.
  • Reviewed DW sources do not identify resin chemistry. The old epoxy label was unsupported.
  • Crush and compressive strength are distinct reported quantities; no uniaxial test configuration or test standard was specified.
  • All grades have a compressive-modulus conflict between webpage and PDF; confirm current technical data sheet with supplier.
  • Published extreme-depth ratings are supplier claims, not independently established ocean operating conditions or FoamForge qualification.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Trelleborg / TG11500

hollow-glass-microsphere syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
639 kg/m³
Published depth
11,500 m
Published hydrostatic crush
Not established

Typical metric-range density from the current webpage; no tolerance stated. Linked PDF differences remain unresolved.

Region: Metric range: not available in North America (current product page). The linked 2020-named PDF says not available in the US.

Sources, conditions & discrepancies (1)

Typical values. No temperature, duration, crush test, or compressive test conditions reported in reviewed TG tables.

Service pressure: 115 MPa. Compressive strength: not established in selected source.

  • Current webpage selected for display; linked PDF is retained as a separate observation. Neither source supplies a grade-specific TG resin chemistry, density tolerance, hydrostatic crush pressure, or compressive strength. Do not label TG as epoxy merely because DS and EL families are described as epoxy.
  • Current webpage spells grade without hyphen; linked PDF spells it with hyphen. Grade alias is traceability only, not an equivalence to an imperial TG grade.
  • Service pressure is converted from vendor-published bar, not inferred from depth.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

Base Materials / Subtec 11500

hollow-glass-microsphere syntactic foam · novel thermoset polymer (chemistry unspecified)

Reference only
Nominal density
650 kg/m³
Published depth
11,500 m
Published hydrostatic crush
>137.9 MPa

Supplier nominal density; tolerance is not stated. Operating and crush pressures use different temperatures; see source details.

Sources, conditions & discrepancies

Maximum operating depth and pressure: 4°C. Hydrostatic crush pressure: 23°C. No test standard, loading rate, specimen geometry, or soak duration given in reviewed table.

Service pressure: 115.13 MPa. Compressive strength: not established in selected source.

  • Crush value is a strict lower bound, not an equality or measured mean.
  • The source says nominal density but gives no density tolerance.
  • Original repository epoxy classification was unsupported; source specifies only a novel thermoset polymer.
  • Service and crush pressures converted from published psi; no depth-pressure conversion used.
  • No compressive strength value or geographic restriction is stated in the reviewed product page.

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

SynFoam / DW-41

syntactic foam · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
656.76 ± 32.04 kg/m³
Published depth
12,500 m
Published hydrostatic crush
159.96 MPa

Supplier nominal density and ±2 lb/ft³ tolerance converted to kg/m³. This is a tolerance, not a prediction interval.

Sources, conditions & discrepancies (1)

Water absorption is specified for 24 hours at depth. Temperature, pressure loading history, specimen geometry, and mechanical test standards are not stated.

Service pressure: 128.73 MPa. Compressive strength: 115.83 MPa (Compressive strength; test method and loading configuration not specified.).

  • Current product webpage selected for displayed properties. Official PDF (copyright 2015) retained as another observation.
  • Density and tolerance are converted from published lb/ft³; pressure values converted from published psi.
  • Reviewed DW sources do not identify resin chemistry. The old epoxy label was unsupported.
  • Crush and compressive strength are distinct reported quantities; no uniaxial test configuration or test standard was specified.
  • All grades have a compressive-modulus conflict between webpage and PDF; confirm current technical data sheet with supplier.
  • Published extreme-depth ratings are supplier claims, not independently established ocean operating conditions or FoamForge qualification.

Alternate published observations

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / HZ-43

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
690 kg/m³
Published depth
11,000 m
Published hydrostatic crush
165 MPa

Nominal density from ESS’s depth–density chart. Any different datasheet nominal and tolerance remain in the source details.

Sources, conditions & discrepancies (2)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 124.1 MPa. Compressive strength: 110 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Depth and nominal density use the ESS overview chart. The separate PDF reports 43 ± 2 lb/ft³ (0.69 ± 0.03 g/cm³); its tolerance is not automatically applied to the chart nominal.

Alternate published observations

  • density_lb_ft3: 42 lb/ft³. Webpage says 42 ± 2; newer PDF says 43 ± 2 and chart says 43. All report 0.69 g/cm³ or 690 kg/m³ in metric. ESS HZ grade webpage ↗
  • Hydrostatic crush: 165.47 MPa. Calculated from printed 24,000 psi; same source prints 1,650 bar (165 MPa). Printed metric column is retained. ESS HZ technical data sheet ↗

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

ESS / HZ-45

resin with hollow glass microspheres · Resin chemistry not established

Reference onlySource discrepancy
Nominal density
720 ± 30 kg/m³
Published depth
11,000 m
Published hydrostatic crush
165 MPa

Density and tolerance from the grade source; this grade is absent from the current overview chart.

Sources, conditions & discrepancies (1)

Maximum 1% weight gain over 24 h at stated service depth. No published temperature, pressure cycling history, test standard, or specimen dimensions in these sheets.

Service pressure: 124.1 MPa. Compressive strength: 118 MPa (uniaxial).

Uniaxial compressive strength at 0.2% offset; test standard not stated

  • Published supplier reference; not a recipe, model prediction, or independent qualification.
  • Specific resin chemistry and processing recipe are not disclosed in these sources.
  • SI values below preserve the printed metric columns: bar divided by 10 for MPa; they are not recomputed from psi. Some source unit pairs are inconsistent.
  • PDF reports maximum 1% weight gain after 24 hours at service depth; temperature, cycle count, specimen geometry, and test standards are not stated.
  • Density and depth use this grade’s datasheet; grade is not listed in the current overview chart.

Alternate published observations

  • Hydrostatic crush: 165.47 MPa. Calculated from printed 24,000 psi; same source prints 1,650 bar (165 MPa). Printed metric column is retained. ESS HZ technical data sheet ↗

Reviewed 2026-10-10. A web retrieval date is not a datasheet revision or confirmation of current supply.

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