There are sometimes when a product may have been defective, which was the case with mine, but people at ArtResin really care about their products and the people who use them. I was sent a replacement right away, and was recently contacted on my experience. Great company and I’ve heard great things about the product. I haven’t had the chance to try again with this resin, but I will once I’m not so pregnant. Super excited, and starting to eye up their non-toxic tints!