Description
Poly 74-24 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to an amber, Shore A25 rubber. This is a pourable rubber, but it can be easily thickened with PolyFiber II Thickener for brush-on application.
Mix Ratio: 1A/1B
Shore Hardness: A25
Cured Color: Amber
Mixed Viscosity: 2000cP
The color of polyurethane Part Bs may change in color from batch to batch or may darken with age, but product performance is not affected. For additional physical property specifications, refer to the Physical Properties Bulletin
Poly 74-Series Liquid Rubbers consist of two parts (A and B), which, after mixing, cure at room temperature to flexible, high-strength, mold rubbers. Poly 74-Series Rubbers make durable, easy-releasing molds for casting plasters and waxes without release agents. When Poly 74-Series molds are properly prepared, they are also excellent for casting concrete and various resins, such as epoxy, polyester, polyurethane and acrylic. Countless decorative concrete applications require liquid mold rubbers for casting, forming or texturing concrete into artful, realistic shapes and colors. Polytek® room-temperature curing polyurethane and silicone mold systems are used to make molds to produce a wide variety of precast concrete products.
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