I have been doing resin jewelry for about a year and have never run into my current problem. Here it goes.
I have sanded down my pendants to the shape I want. I washed the sanded resin away and let them dry overnight. When I went to put a thin layer of resin over the pieces to finish them, the resin will not stick. Thinking perhaps I mixed wrong. I tossed the batch and started over. Same problem! Maybe I didn't let them dry enough. So that was last weekend.
I went out to my work bench today and tried again. Same problem. I was attempting to put a thin coat with a toothpick, the resin almost appears to dry up on contact with the pendant. It leaves a weird, spotty finish. I'm stumped. I have busted my butt over these pendants so I may have to figure out another way to finish them (any ideas?), but any clues as to what is happening? Only thing I did differently on these is I got a higher grit sandpaper.