Devcon 5 Minute Epoxy Gel is a two-part, high strength, rapid curing Gel formula epoxy. Perfect for vertical and overhead applications, it will not drip or sag and is great for filling gaps. Complete with a Blue Dye Indicator, the blue dye disappears when the epoxy is thoroughly mixed. Only mix the amount of resin and hardener together that can be used within the handling time, and always mix equal portions of resin and hardener thoroughly in order for this product to cure properly. Bonds metal, wood, glass, ceramic, concrete, china, fiberglass, and chrome with a tensile strength of 2500 PSI. Temperature Range: -40 degrees Fahrenheit to 200 degrees Fahrenheit.