Excellent for use in IOD and Redesign's silicone moulds! 

BLACK low viscosity liquid plastic. 5 min pot-life and 90 min cure time.

1A:1B by volume mix ratio. 

Smooth-Cast™ ONYX™ is a mercury-free polyurethane 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™ SLOW resin has a pot life of 5 minutes and a cure time of 90 minutes. 

- ONYX™ FAST resin has a pot life of 2.5 minutes and a cure time of 10-15 minutes. ONYX™ FAST is a good choice for creating fast cold cast bronze, brass, copper, nickel/silver, etc. effects.

• Ultra-black and darker than competitive black resins.
• Can be polished and buffed to a high gloss shine.
• Higher heat resistance vs. competitive black resins.
• Does not contain mercury.
• Less expensive vs. other black resins.

Watch Smooth-Cast™ ONYX™ SLOW in action!

Instructions

Safety - Materials should be stored and used in a warm environment (73° F / 23° C). These products have a limited shelf life and should be used as soon as possible. All liquid urethanes are moisture sensitive and will absorb atmospheric moisture. Mixing tools and containers should be clean and made of metal, glass or plastic. Mixing should be done in a well-ventilated area. Wear safety glasses, long sleeves and rubber gloves to minimise contamination risk.