Downloads:
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Poly 15-3 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 mineral-filled system with a simple 1A:1B mix ratio by weight. The filler makes Poly 15-3 a very economical, low-cost resin and also reduces exotherm so shrinkage is minimal; Poly 15-3 and Poly 15-3X (the faster-setting version of Poly 15-3) exhibit the least shrinkage on cure compared to other Polytek® polyurethane plastics. Poly 15-3 is a pourable plastic, but it can be easily thickened with PolyFiber II Thickener for brush-on application.
Get an attractive stone look with your plastic castings for a low cost by using Poly 15-3 Polyurethane Liquid Plastic. This economical mineral-filled system is easy to pour and produces quick results. With only a 15 minute working time and 3-12 hour demold time (depending on the thickness of the casting) you can enjoy professional-quality castings for projects like cold cast bronze parts. This resin cures to a tan color that simulates dense stone. Though color may differ slightly from batch to batch, the superior quality stays the same. Our heavy duty grade Poly 15-3 liquid plastic comes in a two-part set that is easy to mix at a 1A:1B ratio. This includes a 10-pound Part A and 10-pound Part B.
Though it is designed to be pourable, you can also thicken it with PolyFiber II to achieve a brush-on consistency for precision applications. This liquid plastic is preferred by industry professionals because it reduces exotherm, keeping shrinkage to a minimal. This is lower than any other Polytek polyurethane plastics.
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This 20-lb kit includes:
- 10 lb of Poly 15-3 Part A (~1 gallon)
- 10 lb of Poly 15-3 Part B (~1 gallon)
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- Cures Room-Temperature-Vulcanization silicone to a tan.
- Thick Feel.
- Mineral-filled.
- Low-cost resin.
- Minimal Shrinkage.
MIX DESIGN:
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| Mix Ratio |
Shore Hardness |
Pour Time |
Demold Time |
Cured Color |
| 1A:1B by weight |
D80 |
15 min |
12 – 16 hr |
Tan |
| Mixed Viscosity |
Specific Gravity |
Specific Volume |
Maximum Exotherm |
Shrinkage Upon Cure |
| 2,000 cP |
1.53 |
18 in³/lb |
125°F (1-lb mass) |
0.0006 in/in |
Product Literature: Poly 15-Series Technical Bulletin | Physical Properties Bulletin
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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. Parts that cure with minimal temperature rise (exotherm) exhibit minimal shrinkage. 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. For additional physical property specifications, refer to the Physical Properties Bulletin.
Downloads:
-
Poly 15-3 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 mineral-filled system with a simple 1A:1B mix ratio by weight. The filler makes Poly 15-3 a very economical, low-cost resin and also reduces exotherm so shrinkage is minimal; Poly 15-3 and Poly 15-3X (the faster-setting version of Poly 15-3) exhibit the least shrinkage on cure compared to other Polytek® polyurethane plastics. Poly 15-3 is a pourable plastic, but it can be easily thickened with PolyFiber II Thickener for brush-on application.
Get an attractive stone look with your plastic castings for a low cost by using Poly 15-3 Polyurethane Liquid Plastic. This economical mineral-filled system is easy to pour and produces quick results. With only a 15 minute working time and 3-12 hour demold time (depending on the thickness of the casting) you can enjoy professional-quality castings for projects like cold cast bronze parts. This resin cures to a tan color that simulates dense stone. Though color may differ slightly from batch to batch, the superior quality stays the same. Our heavy duty grade Poly 15-3 liquid plastic comes in a two-part set that is easy to mix at a 1A:1B ratio. This includes a 10-pound Part A and 10-pound Part B.
Though it is designed to be pourable, you can also thicken it with PolyFiber II to achieve a brush-on consistency for precision applications. This liquid plastic is preferred by industry professionals because it reduces exotherm, keeping shrinkage to a minimal. This is lower than any other Polytek polyurethane plastics.
-
This 20-lb kit includes:
- 10 lb of Poly 15-3 Part A (~1 gallon)
- 10 lb of Poly 15-3 Part B (~1 gallon)
-
- Cures Room-Temperature-Vulcanization silicone to a tan.
- Thick Feel.
- Mineral-filled.
- Low-cost resin.
- Minimal Shrinkage.
MIX DESIGN:
-
| Mix Ratio |
Shore Hardness |
Pour Time |
Demold Time |
Cured Color |
| 1A:1B by weight |
D80 |
15 min |
12 – 16 hr |
Tan |
| Mixed Viscosity |
Specific Gravity |
Specific Volume |
Maximum Exotherm |
Shrinkage Upon Cure |
| 2,000 cP |
1.53 |
18 in³/lb |
125°F (1-lb mass) |
0.0006 in/in |
Product Literature: Poly 15-Series Technical Bulletin | Physical Properties Bulletin
-
-
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. Parts that cure with minimal temperature rise (exotherm) exhibit minimal shrinkage. 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. For additional physical property specifications, refer to the Physical Properties Bulletin.
