Review on 🖤 Onyx Slow Black Liquid Plastic Casting Resin - Introductory Pack by Michelle Langley

I've worked with polyurethane resins for many years and I know they can be difficult, but this material is terrible. About 75% of all casting attempts just never happen. Yes, I've eliminated all possible sources of dirt and moisture (plastic mixture, humidity up to 30%, etc.) and still 3/4 of all attempts fail in places that just won't heal. I've tried experimenting with thinner patches, pressure (up to 20% moisture), heat, mechanical mixers, hand mixing, different mixing cups - nothing seems to work. Even the post-curing recommended by Smooth-On not only does not harden, but also melts the impression beyond recognition. Huge waste of time and money. Eventually a similar material was shipped from the UK and it works just as easily as any other urethane. I have no idea why this thing isn't grabbing, but I give up. It just doesn't work.