HR Polyfoam Sheets
SKU# HR32-100-5541
High-resilience (HR) Polyfoam is an open-cell polyurethane foam with fire-retardant properties used primarily for seat cushioning in transportation applications. Its low density, low thermal conductivity, and strong mechanical properties also contribute to its excellence as a thermal and sound insulator. Long-lasting, versatile, and comfortable.
Sold in 55" x 41" sheets. HR 32 is also sold in rolls with and without scrim.
|
Grade |
Density (pcf) | Firmness (ILD) (4" thick, 25%) | Firmness (ILD) (4" thick, 65%) |
| HR 32 | 2.6 | 32-38 | 65-86 |
| HR 55 | 2.8 | 51-59 | 120–156 |
| HR 70 | 3.2 | 69–79 | 165-190 |
Flammability Standards
HR Polyfoam has been tested to meet the following flammability standards:
- California Technical Bulletin 117
- FMVSS-302 (Automotive Flammability)
- 14 CFR (FAR) 25.853(a), Vertical Burn
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This product meets and exceeds automotive flammability standards. |
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• This product is acceptable for use in all types aircraft and rotorcraft. |
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This product is acceptable for use in marine interiors, but is not water resistant or repellent. It is highly buoyant with the use of a water-blocking layer. |
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Unknown at this time whether this material is acceptable for use in Railway applications. |