Okay, could not find the answer by searching, so my question is- is there any substance I can use to fill holes in my resin. I made some pendents by filling a mold, letting it dry and then filling the mold again and putting the first resin piece on top the mold. This worked for about half of the resin pendents. The other half had holes in them from where the two pieces separated or air bubbles were. Any ideas on something thicker than resin that won't flow out of the holes during drying, yet still dry clear?