EZ~Spray® FlexFoam is a flexible polyurethane foam compound that can be conveniently sprayed using Smooth-On’s EZ~Spray® Junior System. EZ~Spray® FlexFoam consists of two liquid components in an EZ~Spray® cartridge. When combined in a mixing ratio of one to one by volume, EZ~Spray® FlexFoam quickly cures to a solid, lightweight and durable 7 lb. (approx.) flexible foam, that can be used for a variety of special effects and industrial applications.