Poly 74 Series Part C is an additive that can be added to the liquid 74 Series and 75 Series polyurethane rubbers to reduce the Shore A hardness and to lower mixed viscosity. Part C can also be used to soften PT Flex casting rubbers.

Add Poly 74 Part C Softener to Poly 74, 75 Series liquid polyurethane rubbers to reduce their mixed viscosity and to soften the cured rubber.  Also works with the PT Flex Casting Rubbers.

Available in 1lb, 8lbs, and 40lbs.

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