I used the stuff from Michael's. I think it was called Clear Cast or Easy Cast or something like that. Hobby Lobby probably has the same thing. I could not find a vis.# for it either. It flowed out great. I read some reviews on it and all of the failures were due to not mixing it up enough, so I mixed it up for a full 2+ minutes, poured it out, spread it around a little and watched for the little bubbles. If you breathe on a bubble, it will pop. The carbon dioxide in your breath does it. A propane touch would probably work, too. After the bubbles were gone, I covered it up to keep the dust & bugs off and let it sit for 2 days. It turned out great.