Polyurethane FoamFoamonline.com
Description:

Polyurethane Foam is used for fill, packing, shipping, mattress toppers, dog beds, and costumes. Thick pieces will develop “sink” areas after a short time. Polyurethane foam is our lowest quality foam, and will often not return to its original form over time.

Specifications:

Weight: 1.2 lb. per cubic ft.
Quality: Very low
Cell Structure: Open
Density lbs/cu. ft.: 1.2
ILD/50 sq. in. @25%(4 in.) 33
Tensile Strength, lbs/sq. in. 5.0 – 7.5
Resilience, % Low
Compression set,
75%, 22 hrs., 158° F		 Less than 10%
Color White/Beige

Passes flammability specifications for Cal. T.B. 117, FMVSS 302, and NFPA 260,1989 specifications.