Prop Foam 4 Flexible Foam - All kit Sizes
Important! Prop Foam 4 has a new, improved formula for better skinning properties! This new formula has a variable ratio, meaning you can vary the part a to attain different densities and skins. The new formula has a white part B. The new mix ratio is 37A:100B by weight.
Prop Foam 4 is a 37A:100B mix (by weight) polyurethane self-skinning, low density flexible foam that has a free-rise density of 4 lb per cubic foot. Prop Foam 4 flexible foam is excellent for large body props, padding, and back-filling large, flexible props and parts.
Prop Foams work best when cast into warm TinSil or PlatSil silicone molds. Prop Foam 4 is "self skinning," but PT Flex Casting Rubbers such as PT Flex 20 are ideal for sloshing into molds to create skins for foam props.
Mixing Ratio: 37A:100B by Weight
Cream Time: 45 Seconds
Demold Time: 30 Minutes
Ideal working temperature: 75ºF - 85ºF
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