Has anybody ever tried using “Great Stuff” (foam/insulation) to make a mold from?
I made a display base, and rather than go through that headache again, I’d like to make a mold and cast a couple copies. I have done my homework on other options, but didn’t find anything on “Great Stuff”. I’d like to get by as cheap as possible…ya’ll think “Hammer” is cheap…I’d give him a run for for his nickel!!![:P]
Fermis,
I have tried great stuff. It will carve with razors fairly easy. It sands too. If you make a mold you may want to try spraying the mold with a cooking spray or some mold release 1st. I use it at work all the time and it does not like to stick to PVC, or 6 mil plastic. I used it to make some ridges on one of my project I am working on. Sprayed a little more than I needed and carved it to size. Smoothed it to the final with joint compound.
Good luck