Flex Foam-iT! III Flexible Polyurethane Foam - Trial Unit Cures to a soft white foam in 2 hours Suitable for propmaking and special effects 15 times expansion 1:2 by volume mix ratio WARNING: Keep Out of Reach of Children. Do not get into eyes or on skin. Do not take internally. Do not breathe fumes. Use only with adequate ventilation. Wear vinyl or nitrile gloves and eye protection when handling this product. Review the technical bulletin prior to use for safe handling instruction.