pilkguns
~ Elite 1000 Member ~
I only have expereince with Aluma-Lite, and they are very helpful about answering questions and (knock on wood) I seldom have bubbles if done correctly. I heat the mold* and I use fresh material. Most of the time I paint the mold as well. either silver or gold. The shelf life seems to be pretty limited from what I hear from Aluma-lite staff, so I buy it only direct from Aluma-lite. They are also very picking about shipping it to you, if it's too hot or too cold, they will ask you to wait a few days for the temp to moderate. If you get a batch that is starting to bubble on you, then buy a fresh batch. I will do a thin layer with the new stuff and then mix up the old stuff and poor in to fill the mold completley, letting the new stuff dry first of course.
* I have several of those radiator type oil filled heaters. I put a cookie pan on top of them and then my molds on top of the cookie pan, so that the molds are about 150 degrees or so I would guess.
* I have several of those radiator type oil filled heaters. I put a cookie pan on top of them and then my molds on top of the cookie pan, so that the molds are about 150 degrees or so I would guess.