Haunt Forum banner
1 - 1 of 1 Posts

·
Registered
Joined
·
2,177 Posts
I found that great stuff has a problem expanding and curing if air gets trapped within the foam. You may notice that any Great Stuff exposed to air cures properly. If you cut it open, you will notice that the foam near the surface is dense. Any foam not close enough to the air remains sticky and traps air bubbles. Even if it cures, you can see when you cut it open that the foam isn't dense at all and is prone to shrinking. Check out this pic:
Great Stuff Hand picture by HalloweenZombie - Photobucket

See how much the palm area of the hand shrunk, but the fingers didn't shrink all that much? I fixed this by drilling a few very small holes in the mold that allows air to escape. That allowed the foam in the palm area to become more dense and cure properly.
 
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top