Poly 77-50 Liquid Rubber
Poly 77-50 is a mid-range hardness, 1:1 mix, liquid polyurethane mold rubber that can be used for many general mold making purposes, but is widely used for cast concrete applications such as manufacturing of concrete pavers and other cast stone elements.
|Mix Ratio||Shore Hardness||Pour Time||Cured Color||Mixed Viscosity||Specific Volume||Demold Time|
|1A:1B||A50||15 min.||Tan||1,200 cP||27.5 in³/lb||~16 hr.|
|Accessories: 74/75 Part C Softener, 74/75 Part X Accelerator, PolyFiber II Thickening Agent, UV Additive, Tietex® Fabric, Poly Purge Aerosol Dry Gas|