100-HTA High Temp
100-HTA is a high-temperature, automotive grade, closed-cell PVC foam with a water-based acrylic pressure-sensitive adhesive on one side, available in four thicknesses from 1/16″ to 1/4″. Shore 00 hardness is 35 per ASTM D2240, density is 9–13 lb/ft³ per ASTM D1667, and compression deflection at 1 minute, 50% is 3.32 psi per ASTM D1667. The material is formulated to conform to GMW 17408 Class II Type III (interior/exterior applications) and GMW 17408 Class IV, Type III, and passes GMW 3232 flammability. It is sulphur free and low VOC.
Key Properties
- Compression Deflection 1 Minute @ 50%: 3.32 psi (ASTM D1667)
- Tensile Strength: 43.80 psi (ASTM D412)
- Elongation: 283% (ASTM D412)
- Compression Set: 21.42%
- Density: 9–13 lb/ft³ (ASTM D1667)
- Durometer/Hardness (Shore 00): 35 (ASTM D2240)
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Thickness | 1/16″, 1/8″, 3/16″, 1/4″ | — |
| Color | Black | — |
| Material/Substrate | Polyvinyl Chloride (PVC) | — |
| Density | 9–13 lb/ft³ | ASTM D1667 |
| Durometer/Hardness (Shore 00) | 35 | ASTM D2240 |
Adhesion Properties
| Property | Value | Test Method |
| Adhesive System | Permanent Adhesive | — |
| Adhesive Side | Single Sided Adhesive | — |
| Adhesive Type | Acrylic (Water based) | — |
| Adhesion to Stainless Steel | >350 N/m | — |
Mechanical Properties
| Property | Value | Test Method |
| Compression Deflection 1 Minute @ 50% | 3.32 psi | ASTM D1667 |
| Water Absorption | 3% | ASTM D1056 |
| Tensile Strength | 43.80 psi | ASTM D412 |
| Elongation | 283% | ASTM D412 |
| Compression Set | 21.42% | — |
| Aged Resistance | 5.78% | — |
Environmental Performance
| Property | Value | Test Method |
| Ozone Resistance | Pass | — |
| Solvent Compatibility | Pass | — |
Flame & Fire Performance
| Property | Value | Test Method |
| Flammability GMW 3232 | Pass | — |
Compliance
- GMW 17408 Class II Type III — Compliant (interior/exterior applications)
- GMW 17408 Class IV, Type III — Compliant
- GMW 3232 — Compliant (Flammability, Pass)
- Automotive interior and exterior sealing and gasketing applications requiring GMW 17408 Class II Type III and Class IV Type III compliance with sulphur-free, low-VOC PVC foam
- HVAC and interior cabin lighting applications requiring a chemical-resistant, UV-stabilized closed-cell foam as an alternative to EPDM, Neoprene, PVN, or NBR
- ATM electronic assembly sealing and gasketing where outgassing and fogging from the foam material must be minimized
- General industrial sealing requiring both flexibility and strength at elevated temperatures with GMW 3232 flammability compliance
- Applications requiring an automotive-grade single-sided PSA PVC foam with >350 N/m adhesion to stainless steel and ozone and solvent resistance
Common industries: Automotive, HVAC, electronics, industrial manufacturing, lighting.
100-HTA is a high-temperature, automotive grade, closed-cell PVC foam with single-sided water-based acrylic PSA, formulated to conform to GMW 17408 Class II Type III (interior/exterior applications) and GMW 17408 Class IV, Type III.
Available in four thicknesses from 1/16″ to 1/4″, it is designed for applications requiring both flexibility and strength in automotive, general industrial, HVAC, interior cabin and exterior lighting, and ATM electronic applications. It is positioned as an ideal alternative to EPDM, Neoprene, PVN, and NBR for applications requiring UV stabilization, chemical resistance, and increased temperature performance.
The product is sulphur free to eliminate fogging and low VOC to eliminate outgassing — two critical requirements for enclosed automotive interior applications.
Adhesion to stainless steel is >350 N/m. Ozone resistance and solvent compatibility both pass. Flammability per GMW 3232 passes. Compression set is 21.42% and aged resistance is 5.78% — no test methods are listed on the TDS for either of these values. Water absorption is 3% per ASTM D1056. No service temperature range is explicitly listed on this TDS.
Compliant with GMW 17408 Class II Type III, GMW 17408 Class IV Type III, and GMW 3232 (Flammability, Pass).
What differentiates 100-HTA from the 60-HTA GM High Temperature PVC Foam?
100-HTA has a higher density (9–13 lb/ft³) and higher Shore 00 hardness (35) than 60-HTA (4.8–7.2 lb/ft³, Shore 00 20), and a higher compression deflection at 1 minute, 50% (3.32 psi vs. 1.39 psi). Both grades conform to GMW 17408 Class II Type III and Class IV Type III and pass GMW 3232. The 60-HTA TDS explicitly states a service temperature of -30°F to 230°F; no service temperature range is listed on the 100-HTA TDS. 100-HTA is available in 1/16", 1/8", 3/16", 1/4"; 60-HTA is available in 1/16", 1/8", 3/16", 3/4" — the 3/4" is unique to 60-HTA and the 1/4" is unique to 100-HTA.
Why is compression deflection important for a high-temperature automotive PVC foam used in sealing applications?
In automotive sealing applications, compression deflection at the specified load and time determines whether the foam maintains adequate contact force against the mating surface under the thermal and mechanical loads of the application. For a high-temperature grade, this is particularly important because elevated service temperatures can accelerate creep and compression set in lower-quality foams. The 100-HTA's compression deflection of 3.32 psi at 1 minute, 50% per ASTM D1667 combined with a compression set of 21.42% and aged resistance of 5.78% defines its long-term sealing performance envelope under sustained load.
What is the service temperature range for 100-HTA?
No service temperature range is explicitly listed on the 100-HTA TDS. The product is described as formulated for high-temperature applications. For a stated service temperature, refer to the 60-HTA TDS, which lists -30°F to 230°F.
Is 100-HTA suitable for regulated automotive environments?
Yes. 100-HTA is formulated to conform to GMW 17408 Class II Type III (interior/exterior applications) and GMW 17408 Class IV, Type III, and passes GMW 3232 flammability, as listed on the TDS.
How should 100-HTA be specified?
Specify grade (100HTAPVCF), thickness (1/16", 1/8", 3/16", or 1/4"), color (Black), adhesive type (water-based acrylic PSA, single sided), applicable compliance requirements (GMW 17408 Class II Type III, GMW 17408 Class IV Type III, GMW 3232), dimensional tolerances, and finished format (sheet, slit roll, or die-cut component).
