Soft Expanding Polyfoam
This is a flexible 2lb. waterblown expanding, polyurethane foam system. Works beautifully for filling latex props, displays and simulated body parts. Because this product in not self-skinning, we recommend using it to back layers of latex in a gypsum mold. This enables you to turn your own masks into soft, but solid objects that will hold their shape. The expansion ratio of up to 35 to 1 (under optimal temperature and mxing conditions) makes it very cost effective. Kits are packaged in ratios of 2 parts B to 1 part A: One quart of B (Base) to one pint of A (Activator) for example. One and a half quarts can expand to fill over two and a half five gallon buckets with foam!