HR Polyfoam Sheets

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. HR 32 is also sold in rolls with and without scrim. NOTICE: We are phasing this product from 55" x 41" to 72" x 36". As the 55" x 41" stock depletes below, it will not be replenished. If we are out of stock in the 55" x 41" in the drop-down below, please choose the 72" x 36" option. Specifications 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)