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Specialty Compounds RTP Company
Reynolds PMC® 746 Polyurethane Rubber Compound
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced

Material Notes: Product Overview: PMC®-746 was developed to make molds for casting gypsum plasters. Like PMC®-744, this product is well suited for use as a rubber case mold – especially large case molds where extra rigidity is required. Shore hardness is 60A. Because of its durability and moisture resistant properties PMC®-746 is also used by zoos and museums for a variety of mold-making, display and exhibit applications. It features a convenient mix ratio (2:1 by weight or volume), and contains no mercury. Other applications include making plaster block molds, reproducing ornamental plaster (architectural restoration), pre-cast concrete molds, casting waxes, Smooth-On rigid polyurethanes and epoxies and also for making a variety of special effects for movies and theatre.

Information provided by Reynolds Advanced Materials

Vendors:
Available Properties
  • Specific Gravity, ASTM D-1475
  • Viscosity, ASTM D-2393, Mixed
  • Linear Mold Shrinkage
  • Hardness, Shore A, ASTM D-2240
  • Tensile Strength, ASTM D-412
  • Elongation at Break, ASTM D-412
  • 100% Modulus, ASTM D-412
  • Tear Strength, ASTM D-624, Die C
  • Cure Time
  • Pot Life, ASTM D-2471
  
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Manufacturer Notes:
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Category Notes
Plastic

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