9135A Prepolymer, 9135B Curative - Optically Clear Urethane Casting Elastomer
CPD 9135A Prepolymer with CPD 9135B Curative is an optically clear, very low viscosity, two component, tough, soft and flexible room temperature curing urethane elastomer. This product has excellent handling characteristics and very low sensitivity to moisture during processing and curing. Among its many uses are flexible cast parts, washers, gaskets, and flexible pads. CPD 9135A/B may also be used in potting and encapsulation.
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Technical Specifications
- Part A Density at 25C, g/cm3 (lbs/gal):
- 0.98 (8.14)
- Part B Density at 25C, g/cm3 (lbs/gal):
- 0.90 (7.51)
- Part A Viscosity at 25C, cP:
- 380
- Part B Viscosity at 25C, cP:
- 80
- Mix Ratio by Weight:
- 100A : 10B
- Mix Ratio by Volume:
- 9.23A : 1B
- Initial Mixed Viscosity 25C, cP:
- 520
- Gel Time at 25C, 100g mass, minutes:
- 23
- Demold Time at 25C, minutes:
- 16-24
- Demold Time at 66C, minutes:
- 2-3
- Work Life at 25C, minutes:
- 14
- Color:
- Clear
- Tear Strength, psi:
- 700
- Tensile Modulus at 100%, psi:
- 225
- Tensile Modulus at 300%, psi:
- 530
- Tensile Elongation, %:
- 650
- Split Tear, ppi:
- 60/72
- Cured Density, g/cm3 (lbs/in3):
- 0.98 (0.035)
- Volumetric Yield, in3/lb:
- 28.6
- Hardness, Shore A:
- 35
- Linear Shrinkage, in/in:
- 0.0006
