Packed in resealable plastic tube. Convenient for tool box. Useful for many repair jobs. Plumbing Repairs: Sink traps, oil and water tanks, pipe joints, drain leaks, etc. Electrical: Use in place of tape, ceramic connectors, knobs, etc. Ceramic Repair: Cracked porcelain wall tile, floor tile, etc. Auto Repair: Metal strips, small dent repairing, fuel tank, radiators, etc. Underwater Repair: Concrete swimming pools, fish tanks, etc. Custom Formed Gaskets: For permanent sealing and bonding. Home Repairs: De-threaded screws in wood or metal, picture hanging, light fixture installation, fixing loose rungs and legs on furniture, air duct leaks, etc. Excellent for fabricating or rebuilding parts and for use as an all-purpose adhesive for metals, wood, glass, masonry, ceramics and many plastics. Can be drilled, tapped, filed, sanded and painted like metal. Do not use with polyethylene or polypropylene. Hardens in 20 minutes.