Poly 75-60 Quart Kit (4 lbs)
- Item #: 7560U4
- Manufacturer: Polytek
Poly 75-60 is a 1A:1B mix, A~60 hardness, low viscosity, firm, polyurethane mold rubber that has a 10 minute pour time and a 4 hour demold. Poly 75-60 is used for making tough, durable molds for casting plaster, wax, concrete and resins. Used mostly for casting concrete, this rubber has high abrasion resistance and long mold life.
Used for casting, forming and texturing concrete countertops, precast architectural panels, sound barriers, fences, pavers, slabs, patio stones, retaining wall block and for all other types of cast stone and GFRC applications.
Kit Contains: 1 Quart (2lbs) of Part A and 1 Quart (2lbs) of Part B - 4 lbs Total
Mix Ratio: 1A:1B by Weight
Durometer: Shore A 60
Working Time: 10 Minutes
Demold Time: 4 Hours
Mixed Viscosity: 1,200 cP
Allow to cure at room temperature, 77°F (25°C). Final cure properties are obtained in about seven days, but molds may be used with care after curing for 24-48 hours.