I had issues with s&t two part resin not curing at all. It’s not as if I had mixed it incorrectly (I tried multiple times being super careful with the correct ratio) and it didn’t cure properly, it was not curing at all. I messaged them using their contact form with no response. Then email, and still no response. I bought from them again leaving a note in the notes section thinking surely they would read that, alas, nothing. In desperation, I replied to an automated reply from them. I got one response, and after that reply, I haven’t heard anything back. It feels like they don’t want to deal with it. I’ve bought a quite a bit of resins and moulds from them. Usually, fine. But one bad batch and lack of response really makes me lost my trust in them.