Jim...
The thicker the foam,, up to a certian point the better... I use 2-3 inches of foam both side...
With more foam you need more pressure though...
The sprat adhesive is to laminate the layers of foam yes...
Bruce....
The heating element press you talked about is Not needed...
You have 2 problems...
You aren't heating enough, and you need to get it in the press faster...
I stopped using the oven.. It's not needed...
I heat about 12 inches from my press, and have it heated and in the press under 30 seconds,, give or take some minor adjustments.
Even when I was using the oven, It would be in the press under a min from upstairs...That was a pain!
Get a toaster oven,,a bigger one,,but shiel the plastic from the elements with some scrap sheet metal.
You don't need direct heat, ambient heat is fine,,although slower...
If you use a heat gun,,keep it moving,,even when doing small areas or it will get shiny..
ttyle Eric...
------------------
Eric E. Noeldechen
On/Scene Tactical
http://www.mnsi.net/~nbtnoel
Custom made, High Quality
Concealex Sheaths and Tool Holsters
Canada's Only Custom Concealex Shop!