1.1 ,This specification covers the composition and physical properties of lightweight, flexible open-cell polyimide foam insulation intended for use as thermal and sound-absorbing insulation for temperatures from –,328°,F up to +572°,F (–,200°,C and +300°,C) in commercial and industrial environments.
1.1.1 ,Annex A1 includes faced polyimide foam as specified by the U.S. Navy for marine applications.