Mix Ratio: 1A:2B
Shore Hardness: A20
Pour Time: 20 min.
Demold Time: 16 hr.
Cured Color: Yellow

Poly 74-20 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a yellow, Shore A20 rubber. This is the softest rubber in the Poly 74-Series line of polyurethane mold rubbers. Poly 74-20 is a pourable rubber, but it can be easily thickened with PolyFiber II Thickener for brush-on application.