I was removing spam on this thread today when I noticed the topic was almost 20 years old. Wow!
Here's a link to the best thermoform adhesives on the market. I've you're using adhesives for KYDEX®, HOLSTEX®, Boltaron®, or ABS, these are the top-of-the-line!
https://www.holstersmith.com/vcom/to...c-548_433.html