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Poly 74-45 Mold Rubber
Poly 74-45 Mold Rubber by POLYTEK
Poly 74-45 Mold Rubber by POLYTEK
 
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Product Code: PT74-75

Description Technical
 
Poly 74-45 Mold Rubber by POLYTEK. Poly 74-45 liquid polyurethane rubber cures to a very tough, high-tear, high-elongation rubber. This product is ideal for high volume concrete and plaster casting and is a very popular option for casting decorative architectural concrete panels and accessories.
Casting techniques using Polytek mold rubber
Casting techniques - Stamp Mat. 74-45 could also have been used for this project.
Reproducing a Concrete Countertop.
Description
Polyurethane rubber is designed for making high-performance rubber molds for casting materials such as plaster (millwork, home décor, etc.), wax (candles & lost wax varieties), concrete, GFRC, GRG and resins.

  • Polyurethane rubber consists of two parts (A & B), which, after mixing, cure at room temperature to a flexible, high-strength mold rubber.
  • Polyurethane rubber can be used to produce durable, easily released molds for casting concrete, plaster and wax.
  • Mix Ratio (by Weight): 1A:1B
  • Hardness (Shore A): 45
  • Pour Time 30 min.
  • Color: Yellow Mixed
  • Viscosity (cP): 2,500
  • Specific Volume (in3/lb): 27
  • Recommended Release Agent: Pol-Ease 2300
  • Demold time 16 hrs


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