Opticon stabilizer and fracture sealer has been and continues to be the professional lapidary choice when sealing,stabilizing,crack stopping,fracture healing and hardening of stone and stone products is necessary.This 2 part resin/hardener comes in kit form with instructions and is easy to use and really works.Slabs,cabs,opal,agate,turquoise,soft or hard material this epoxy resin is the best.