Smooth-Cast Onyx™
Buy Smooth-On at FormX
Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting resins, adhesives and equipment. FormX is the main distributor of Smooth-On products in Europe.
Smooth-Cast ONYX™ 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. 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 ONYX™ SLOW has a pot life of 5 minutes and a cure time of 90 minutes
Advantages:
- cured plastic is ultra-black and darker than competitive black resins
- can be polished and buffed to a high gloss shine
- offers higher heat resistance vs. competitive black resins
- does not contain mercury
- less expensive vs. other black resins
Applications include reproducing sculpture, making prototypes and potting / encapsulation. Due to it’s quick cure time and hardness, ONYX™ FAST is a good choice for creating fast cold cast bronze, brass, copper, nickel/silver, etc. effects.
Smooth-Cast Onyx Data
| Name | Mixing Ratio | Color | Demold Time | Mixed Viscosity | Pot Life | Tensile Strength | Shore Hardness | Specific Gravity kg/lt | Comp. Strength |
|---|---|---|---|---|---|---|---|---|---|
| Onyx Fast | 1A:1B | Black | 10-15 min | 100 cps | 2.5 min | 5840 psi | 80D | 0.999 | 8760 psi |
| Onyx Slow | 1A:1B | Black | 90 min | 100 cps | 5 min | 7660 psi | 80D | 0.999 | 11400 psi |
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