I've used Stycast 2850GT - It's expensive, and pretty messy, and you need to be aware that it's going to get hot while curing so some not so high temp parts on the board could tend to melt, but once it's done, the thermal conductivity is a nice plus since the whole thing essentially becomes a heat sink. Tony Funny NYPD wrote: > Greeting Dwayne, > Do you have a supplier or vendor to share. And what's the normal price on those material -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist