The epoxy dark grey adhesive in two parts from J-B Weld provides strong, lasting repairs to multiple surfaces such as metal, wood, plastic, tile, PVC, ceramic, fiberglass or concrete. It is ideal for household repairs, plumbing, automotive, marine or crafts. Its strength is 3960 PSI and the set time is 25 minutes when the cure time is 15 to 24 hours. Before application, it is necessary to clean the surface area of dirt, grease, oil, paint, or loose debris. It comes in two different tubes.