Versachem 25ml Syringe 5-Minute Gel Epoxy System Hardener. Versachem 5 Minute Clear Epoxy is a two-part, rapid curing, general purpose epoxy that dries clear. This high strength formula forms a permanent bond on almost any material. Use it to bond metal, wood, chrome, concrete, glass, ceramic, fiberglass, china and more with a tensile strength of 1500 PSI. Only mix the amount of resin and hardener together that can be used within the handling time. You can mix colored chalk with epoxy to repair enamel and china that has been nicked, and you can also add color pigment concentrate. This must be done after the resin and hardener have been thoroughly mixed together. It is good to use removable tape on surfaces that you do not want epoxy to get on. Before the epoxy cures, remove the tape. Water resistant formula, with a temperature range of -40F to 200F.