fleece?

Yeah I did some research on this uv resin and called my composites dealer and he said that the stuff is real finnicky and if you are not doing production line work where you really need to slam stuff out then dont use it.

What did he say was finicky about it?

With the powder stuff that you add to resin, he said you have to be exact in your measurements or you end up with a real mess.

The UV product has been around for a while and from what I was told by the marine shop fabricator is that this product should only be used as an emergency fix while on your boat in the water. He wasn't able to tell me if it's a good replacement for resin and hardner for what we use it for but he told me that when he sees it on a boat he replaces the area with proper methods of fiberglass. He gave me some of this UV product to test out so I'll get back to you when I have a chance to use it. And in respose to spandex that hasen't been used since the 80's that probably right and at least we found a good use for it instead of the 300 pound person at the beach.

That sounds about right because alot of the sites that I found it on mentioned using it to fix a crack in a surfboard.

The place where I get the UV resin at is a boat repair company.  They keep it in stock for their own uses and seem to be very happy with the stuff as they uses it regularly.  He showed me a large book full of different resins that are available, so maybe the stuff he uses is a bit different than the stuff your guy is talking about?