Poly 74-45 - All Kit Sizes – brickintheyard

Poly 74-45 Urethane Rubber is our choice for larger brush-on molds (must add PolyFiber 2- See Additives) and cast stone. Has a great stretch for a stiffer rubber, allowing for some undercuts. Poly 74-45 Urethane Rubber is a very tough, high tear, high elongation rubber. This product is ideal for high volume concrete and plaster casting. As with other 74 Series products, it can be poured as supplied or thickened with PolyFiber for creating brushed molds. Release sealed patterns with 2300 spray release. Plaster patterns may be sealed with Mold Soap and released with 2300. Poly 74-45 is a 1A:1B mix, A~45 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 (mill work, home decor, etc.), wax (candles & lost wax varieties), concrete, GFRC, GRG and resins (polyurethane, polyester, epoxy - with proper release agents). Poly 74-45 molds can be poured as supplied or brushed-on by mixing in Poly Fiber II thickener or fumed silica. Poly 74-45 liquid rubber is an excellent multi-purpose, economical mold material that will provide long mold life, durability and consistent performance under repeated casting. Poly 74-45 is popular for casting decorative

Poly 75-75 is a 2A:1B mix, A~75 hardness, 20 minute working time, firm, polyurethane mold rubber that has a 16-24 hour demold used primarily for

Poly 75-75 - All Kit Sizes

Poly 74-45 Liquid Rubber

Mold Making Urethane Liquid Rubber: 74-Series: 74-45, Poly 74-45 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a yellow,

Mold Making Urethane Liquid Rubber Polytek 74-45

Mold Making Urethane Liquid Rubber: 74-Series: 74-45, Poly 74-45 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a yellow,

Mold Making Urethane Liquid Rubber Polytek 74-45

ArtKast Pourable Resin - All Kit Sizes

Poly 74-30 Liquid Rubber Polytek Development, 53% OFF

Poly 74-45 Mold Rubber by POLYTEK – Concrete Exchange

Polytek 74-45 Liquid Polyurethane Rubber (16lb Kit)

Brick in the Yard Mold Supply – brickintheyard