can foam sealer be used to make molds? its the spray can kind found at home depot. i think its made of urethane polymer or something like that, is that the same thing as urethane foam?
How are you planning on using it?
wax the plug, and spray the foam sealer over it. wait for it to cure, then pop it off. would it make a good mold? whats the difference between the 2 part urethane foam, and the spray can stuff?
The stuff in the can is soft and is porous. It won’t work as a mold. And even if you wax the plug, the foam will still stick to it. It sticks to everything.