I have just bought a house and the previous owners left a ton of keys ( about 50 kilos )just wondering if I could sell theseMany thanks
Ice Resin is a brand that was developed for jewelry use. You can find it in Michael's, Hobby Lobby or online at jewelry tool and supply sites. The MSDS on it should be available online as well.
I spider won't survive the heat of a kiln sitter. If the kiln didn't shut off you have a different problem. Impossible to tell whether the defect is in your kiln sitter or your use of it. If you had kiln wash on the shelf the melted clay shouldn't stick to it. If you didn't have kiln wash it might. You have to figure out whether you could gently chisel the clay away or not.