Poly 74-30 Clear Liquid Rubber Mold-Making Materials 40 lb of PlatSil® Gel-OO

40 lb of PlatSil® Gel-OO Part B (~5 gallons)

and therefore they add less volume per weight

Tensile Strength: 400 psi

it weighs in at 860 lbs

Poly 74-30 Clear Liquid Rubber Mold-Making Materials 40 lb of PlatSil® Gel-OOPoly 74 30 Clear Liquid Rubber is a two part, liquid polyurethane system that cures (RTV) to a transparent amber, Shore A30 rubber. This is the transparent version of Poly 74 30 Liquid Rubber. This product is useful for molds where clarity is needed to see casting material fill the cavity. This liquid polyurethane rubber can also be used for casting clear amber or color cast flexible art objects and dcor. Poly 74 30 Clear is a pourable rubber, but it