Poly-Optic® 1420 Clear Casting Resin
Poly-Optic® 1420 Clear Casting Resin is a two-part, liquid polyurethane resin that cures (RTV) to a water-clear, Shore D85 plastic. It cures to a tough, impact and heat-resistant plastic that can be polished and machined and is used extensively in prototyping applications. Heat cure (150°F - 180°F) is required to achieve optimum physical properties. When cured at room temperature, the result is a brittle, glass-like casting.
Vacuum and/or pressure casting techniques are recommended for this product. Cure inhibition can occur when casting this resin in tin-cured silicone rubber molds – use a platinum-cured silicone rubber mold if working with silicones.
WARNING: This product contains Phenylmercuric acetate (CAS 62-38-4), a chemical known to the State of California to cause reproductive harm. For more information, go to www.P65Warnings.ca.gov.
FOR INDUSTRIAL/PROFESSIONAL USE ONLY.
Technical Specifications
- Mix Ratio by Weight:
- 2A:1B
- Shore Hardness:
- D85
- Pot Life:
- 15 min.
- Demold Time:
- 8 hr. @ 150°F / 30 min. @ 175°F
- Cured Color:
- Water-Clear
- Mixed Viscosity:
- 250 cP
- Specific Volume:
- 26.3 in³/lb
- Specific Gravity:
- 1.05
- Elongation:
- 5.3 %
- Tensile Strength:
- 7,900 psi
- Elastic Modulus:
- 171,500 psi
- Flexural Modulus:
- 250,000 psi
- Flexural Strength, 5% Strain:
- 12,600 psi
- Heat Deflection Temp.:
- 168°F
- Max Exotherm:
- 311°F
- Notes:
- Demold time varies with thickness of casting and the amount of Poly-Optic Part X Accelerator added. The thinner the casting, the longer the demold time. Shrinkage in polyurethane resins is caused by gelling while hot then cooling.
More Information
Poly-Optic® 1420 | Components |
---|---|
6-lb kit includes: | 4 lb of Poly-Optic® 1420 Part A (~2 quarts) 2 lb of Poly-Optic® 1420 Part B (~1 quart) |
24-lb kit includes: | 16 lb of Poly-Optic® 1420 Part A (~2 gallons) 8 lb of Poly-Optic® 1420 Part B (~1 gallon) |
120-lb kit includes: | 80 lb of Poly-Optic® 1420 Part A (~10 gallons) 40 lb of Poly-Optic® 1420 Part B (~5 gallons) |