: Hi Nate.
: Epoxy usually doesn't stick to ziploc bags, unless it is the printed side.
: You might try a heat gun to soften the epoxy enough to peel off the bag. I
: usually use plain roll plastic (Visquene)or waxed paper under glue joints.
: Donovan
the wood block works better if you glue the sandpaper to the block, I use peel and stick, rubber cement also. You can also put blue tape as a protector of the good part. I also use single edge razor blades to scrape.
Don