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Poly 74-30

Poly 74-30 is our most versatile rubber. Easy 1:1 mix, widely used by foundries for waxes. Can be poured as supplied, or thickened and brushed on. Long working time, very fluid. Excellent for plaster and limited castings of resins and cement as well.


Poly 74-30 4lbs.

CODE: Poly74-30-4

$59.00
Polytek

Poly 74-30 is a 1A:1B mix, A~30 hardness, polyurethane liquid rubber that cures in 16-24 hours and is designed for making high-performance rubber molds for casting materials such as plaster (millwork, home décor, etc.), wax (candles & lost wax varieties), concrete and resins (polyurethane, polyester, epoxy - with proper release agents). Poly 74-30 molds can be poured as supplied or brushed-on by mixing in Poly Fiber II thickener or fumed silica. Poly 74-30 liquid rubber is an excellent multi-purpose, economical mold material that will provide long mold life, durability and consistent performance under repeated casting.


Poly 74-30 16lbs.

CODE: Poly74-30-16

$138.00
Polytek

Poly 74-30 is a 1A:1B mix, A~30 hardness, polyurethane liquid rubber that cures in 16-24 hours and is designed for making high-performance rubber molds for casting materials such as plaster (millwork, home décor, etc.), wax (candles & lost wax varieties), concrete and resins (polyurethane, polyester, epoxy - with proper release agents). Poly 74-30 molds can be poured as supplied or brushed-on by mixing in Poly Fiber II thickener or fumed silica. Poly 74-30 liquid rubber is an excellent multi-purpose, economical mold material that will provide long mold life, durability and consistent performance under repeated casting.


Poly 74-30 80lbs.

CODE: Poly74-30-80

$465.00
Polytek

Poly 74-30 is a 1A:1B mix, A~30 hardness, polyurethane liquid rubber that cures in 16-24 hours and is designed for making high-performance rubber molds for casting materials such as plaster (millwork, home décor, etc.), wax (candles & lost wax varieties), concrete and resins (polyurethane, polyester, epoxy - with proper release agents). Poly 74-30 molds can be poured as supplied or brushed-on by mixing in Poly Fiber II thickener or fumed silica. Poly 74-30 liquid rubber is an excellent multi-purpose, economical mold material that will provide long mold life, durability and consistent performance under repeated casting.