Military environments foam cushioning must withstand repeated abuse and still be able to perform
U.S. Military Specification MIL-P-26514
MIL-P-26514 is a U.S. military specification intended to control the quality and performance of fabricated and foam-in-place closed cell polyurethane foams procured for use in military packaging.
The material properties covered under the specification include compression strength, creep, dimensions, water absorption, flammability, density and shelf life. Resists cleaners & Lubricants.