Thread: Stone Holder

Good info, can you suggest some that don't require air?

Cheers, Steve

Originally Posted by eKretz

There are also many different urethane foams. Some require air to cure (like the foam insulation used above) and some do not. The one that don't are much better for this application as you can bag them and they will still cure, and they won't have the problem where thick sections don't cure on the inside. If you attempt to use spray foam insulation in a sealed bag it will never cure.

One company that I know of for sure is InstaPak. I've only used it at work for packing, not sure if there are other makers also or where it might be available for purchase.