Been looking all over the place for some low cost blue poly foam to make forms for the various things I want to make for the Poupe'. I've not found any place in Fresno that would sell me remnants cheap, they only want to sell whole pieces at a cost between 80 and 120 bucks a sheet. Then, lo and behold! I found these pieces in a pile beside the road! Wonder what other Poupe' parts might be found in the trash? I like working with this stuff! light, easy to form, won't melt under polyester resin! Make easy forms for things like intake scoops, wings, spoilers etc.. Cut it with a regular knife and fine tune with sand paper. Can be cut with a hot wire if available. This foam is weighted at either 2 or 4 lbs per cubic foot.