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Poly 15-3X Liquid Plastic 100 lb

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TL Item#: 107410 Category: Mold Making & Casting

Poly 15-3X Liquid Plastic is a two-part, liquid polyurethane resin that cures (RTV) to a tan, Shore D80 plastic that has the feel of dense stone. This is a fast-setting, mineral-filled system with a simple 1A:1B mix ratio by weight. The filler makes Poly 15-3X a very economical, low-cost resin and also reduces exotherm so shrinkage is minimal; Poly 15-3X and Poly 15-3 (the slower setting version of Poly 15-3X) exhibit the least shrinkage on cure compared to other Polytek® polyurethane plastics. Poly 15-3X is a pourable plastic, but it can be easily thickened with PolyFiber II Thickener for brush-on application.

Technical Specifications

  • Mix Ratio by Weight: 1A:1B
  • Shore Hardness: D80
  • Pot Life: 5 min.
  • Demold Time: 1-12 hr.
  • Cured Color: Tan
  • Mixed Viscosity: 2,000 cP
  • Specific Volume: 18 in³/lb
  • Specific Gravity: 1.53
  • Linear Shrinkage: 0.0015 in/in
  • Elongation: 2.6 %
  • Tensile Strength: 3,890 psi
  • Heat Deflection Temp.: 149°F
  • Max Exotherm: 160°F
  • Note: Shake or Stir Part A & Part B before use. Demold time varies with thickness of casting. The thinner the casting, the longer the demold time. Shrinkage in polyurethane resins is caused by gelling while hot then cooling.
  • Note: The color of polyurethane Part Bs may change in color from batch to batch or may darken with age, but product performance is not affected.

WARNING: This product can expose you to chemicals including Diisononyl phthalate, Cumene, Napthalene, Ethyl benzene, Benzene and Toluene, which are known to the State of California to cause cancer and/or reproductive harm. For more information, go


NOTE: While Techland takes steps to ensure accuracy in it's product listings and images, any color samples or lamp and product images shown on this website are for reference only, may not be exact and may vary from the actual product look and/or color.

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