expanding urethane - neet

[magic]

http://www.industrialpolymers.com/product-list/hydrospan-100-expanding-resin/

[knight_toolworks]

way cool. Hate to see the cost.

[bruce_taylor]

lots of possibilities with this stuff, does make wonder how much?

[knight_toolworks]

though it has it's limits sicne you can't really get an exact size from it. it is more for just enlarging parts for easier to see detail.