Apoxie Sculpt 4 Lb. Epoxy Clay - Bronze Non-hazardous, non-flammable; no solvents or fumes 0% shrinking & cracking Putty-like, smooth consistency Excellent adhesion to clean surfaces wood, metal, ceramic, fiberglass, foam, glass, plastics, stone, and more! 2-3 hour working timel Self-hardening; no ovens, kilns or fumes