I have a broken bottle that I tried to repair back in the early to mid 70s. The material of choice was casting resin. I did a lousy job trying to get the pieces to fit flush and would like to dissolve the old casting resin and attempt a better repair. I don't want to scrape it out for fear it will alter the matting surfaces so is there anything that would dissolve the old resin? What would be a good replacement? The bottle was broken after it was dug and cleaned so the edges are pretty good. I'm sure a lot of you would say just pitch it or put the pieces in a box of brokens but it has really nice long bubbles and stretch marks and an iron pontil. Appreciate any help, Jim
If the solvent doesn't work for you, use your Dremel tool. drill a hole in the center of the patch, then carefully grind off the old patch working from the starter hole. The resin will be softer than the glass, so if you work patiently, you can remove the resin without damaging the glass. When you get close to the glass margin, support the edge with a fingertip (then work really carefully!).