Poly 1511 Liquid Plastic


Poly 1511 Liquid Plastic is a two-part, liquid polyurethane resin that cures (RTV) to a white, Shore D71 plastic. This product has a simple 1A:1B mix ratio by weight. When cured, it has the feel and density of hard wood or thermoplastics. Poly 1511 is a pourable plastic, but it can be easily thickened with PolyFiber II Thickener for brush-on application.

WARNING: This product can expose you to chemicals including Phenylmercuric compound and Diisononyl phthalate, which are known to the State of California to cause cancer and/or reproductive harm. For more information, go to www.P65Warnings.ca.gov.  


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Technical Specifications

Mix Ratio by Weight:
Shore Hardness:
Pot Life:
10 min.
Demold Time:
1-16 hr.
Cured Color:
Mixed Viscosity:
400 cP
Specific Volume:
25.1 in³/lb
Specific Gravity:
Linear Shrinkage:
0.0044 in/in
5.4 %
Tensile Strength:
6,712 psi
Elastic Modulus:
118,352 psi
Flexural Modulus:
241,223 psi
Flexural Strength, 5% Strain:
10,046 psi
Heat Deflection Temp.:
Max Exotherm:
Shake or Stir 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.
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.

More Information

Material Calculator

Technical Bulletin

Safety Data Sheet - Part A

Safety Data Sheet - Part B

Kit Components
Poly 1511 Components
4-lb kit includes: 2 lb of Poly 1511 Part A (~1 quart)
2 lb of Poly 1511 Part B (~1 quart)
16-lb kit includes: 8 lb of Poly 1511 Part A (~1 gallon)
8 lb of Poly 1511 Part B (~1 gallon)
80-lb kit includes: 40 lb of Poly 1511 Part A (~5 gallons)
40 lb of Poly 1511 Part B (~5 gallons)