flex foam-it! iii flexible polyurethane foam trial unit & smooth-cast 300 liquid plastic compound trial unit, combo pack smooth-on <b>flex foam-it! iii flexible polyurethane foam trial unit & smooth-cast 300 liquid plastic compound trial unit, combo pack</b><br><br> 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. flexfoam-it! expanding flexible foams are easy to use and durable. they are lightweight, versatile and most are available in easy to measure mix ratios. they can be used for padding/cushion material, gasket material, or to make props and special effects. vibrant colors can be achieved by adding color pigments.<br><br> smooth cast 300 is a liquid plastic ,ultra-low viscosity casting resin that yields castings that are bright white and virtually bubble-free. vacuum degassing is not necessary. it offers the convenience of a one to one mix ratio (by volume). 3 minute pot life: 10 minute demold time: mixed viscosity 80 cps: 70d shore hardness fully cured castings are tough, durable, machinable and paintable. read msds before use - adult supervision required. keep out of the reach of children