Do you re-use these bottles of dye mix for multiple uses or do you do a new mix for every project? If it's been like say 2 weeks? I don't know how long you can use a mix of ex. 1/2 tbsp of dye to 1oz of acetone before you need to mix a new batch. Thank you in advance, these discs are beautiful.
My understanding is heat will speedup the bonding process but if you let it sit overnight at room temp that should work fine as well. I would try leaving them on top of the fridge overnight for best of both worlds.