IsoMold URP 5121 is used to make molds of detailed masters that do not contain undercuts. ISOMOLD URP 5121’s physical properties make it ideal for making concrete patterns and formliners. IsoMold URP 5121 is a two-part polyurethane molding system. IsoMold URP 5121 is mixed one-to-one by volume (or one-to-one by weight) and cures at room temperature. IsoMold URP 5121 cures to a hard (Shore A50); gray rubber.
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Technical Data Sheet