Great stuff shrinkage

[Blackrose1978]

I have a few props I made from great stuff that have lasted for several years with just needing paint touch up! Is there a better foam product that is simple to use that I can mass produce skulls with? My plaster paris skulls are just too heavy when it comes to storing.

[Bone Dancer]

I think what you maybe looking for is what is called two part foam ( expanding urethane foam )
It can expand at various rates to give you different densities of foam. Here is a link to Smooth On to get you started. Check around for other suppliers and do a search here in the forum.

http://www.smooth-on.com/Rigid-and-F...c10/index.html

Another note, its not cheap.