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Smooth-Cast™ ONYX™ SLOW
- Chemical Family
- Polyurethanes (PU)Urethanes
Smooth-Cast™ ONYX™ SLOW is a mercury-free urethane resin that cures at room temperature to a deep black, solid plastic. ONYX™ resins offer the convenience of a 1A:1B by volume mix ratio and have very low viscosities, so they are easy to mix and pour. ONYX™ resins have an ultimate Shore hardness of 80D and offer higher physical properties and higher heat resistance vs. other general purpose resins. ONYX™ resins are available in 2 speeds. ONYX™ FAST resin has a pot life of 2.5 minutes and a cure time of 10-15 minutes, while ONYX™ SLOW has a pot life of 5 minutes and a cure time of 90 minutes.
Product families
Plastics — Thermoset Resins
- Polyurethanes
Other characteristics
- Brand
- Smooth-Cast
- Density
- 1090.0 - 1090.0 kg/m³
- End Uses
Encapsulant, Prototyping, Semiconductor Applications
- Polymer Name
- Polyurethane (unspecified)
- Tensile Strength
- 52.7774 - 52.7774 MPa
- Markets
- Electrical & Electronics
- Industrial
- Technology
- Plastics
- Material Features
- Enhanced Physical Properties
- Low Viscosity
- Mercury Free
- Very Good Heat Resistance
Technical data
Table 1 of 1
16 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Pot Life at 73°F (23°C) | 5 | Minute | ASTM D-2471 |
| Cure Time at 73°F (23°C) | 90 | Minute | — |
| Tensile Strength | 7660 | psi | ASTM D-638 |
| Tensile Modulus | 374000 | psi | ASTM D-638 |
| Elongation at Break | 3 | % | ASTM D-638 |
| Flexural Strength | 10230 | psi | ASTM D-790 |
| Flexural Modulus | 286000 | psi | ASTM D-790 |
| Compressive Strength | 11400 | psi | ASTM D-695 |
| Compressive Modulus | 97900 | psi | ASTM D-695 |
| Shrinkage | 0.012 | in./in. | ASTM D-2566 |
| Mix Ratio | 100A:100B (120A:100B) | by volume (by weight) | — |
| Mixed Viscosity | 100 | cps | ASTM D-2393 |
