I have made molds from fiberglass that work well. The surface must be=20 very smooth, catalyzed paint (not solvent like mineral spirits) like a=20 fine auto finish, and well waxed. In the craft area there are mold=20 materials available of all varieties. Try searching internet for that. You don't say how many you need to make, and how quickly. Careful of=20 fast setting epoxies, they exotherm, and boil causing foaming in=20 anything but thin layers. What are using for epoxy and filler? I like the West epoxy with micro=20 balloons, milled glass fiber or flox (milled cotton) for filler=20 depending on usage. If interested in this, I can supply more info. Can you use Bondo (Polyester auto body filler). It's cheap, cures=20 quickly, and is sand-able finish-able, On 2/14/2012 8:13 AM, RussellMc wrote: >> I'm looking for an inexpensive sheet material that I can use for >> epoxy molds. I have a product that is an epoxy blob about 1.5" x >> 1.1" by 0.5" thick. I need to find a faster way of making these epoxy b= lobs. >> =20 > =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .