Smooth Cast ONYX FAST Black Liquid Plastic Casting Resin - Trial Unit

Professional grade product that yields great results every time

cures very fast so small batches is requiredwhen it is cured it’s incredibly strong, i previously used smooth cast 305 for the same part and it would flex under stress. the onyx does not flex and is quite strong but will snap at a certain point.i used this resin to make custom engine parts (throttle wheel and small sensor bracket) and it holds up well so far, no noticeable reaction to heat or gasoline

Used this in making a resin face mask, preformed extremely well, proved very easy to use this being my first attempt, and resulted in a nice finish. Word of warning though, this stuff cures FAST, like steaming because it's so fast. Just keep that in mind. Also, I think that ideally throwing it in a degassing chamber might be helpful as I did notice a couple of air bubbles in my cast.Overall though, I can recommend this product.

I have used it many times

This is definitely not for beginners. With the 2min pot life you really have to be 100% prepared to pour. I have noticed that this resin will only mix properly in cups made of certain plastics. Some plastics will cause the resin to bubble and boil. It also gets extremely hot during the 10min cure, so don’t get it on your bare skin or hold the mixing cup after you’ve poured, especially if there is anything left in it.