POR-15 Epoxy Putty is so strong you can drill and tap it while being gentle enough that you can apply it with your bare fingers. You can simply wet your fingers, and work with it until it is almost perfectly smooth before it dries, eliminating the need for sanding. When it cures, it is rock hard and perfect for repairing steel, plastics, concrete, etc. The POR-15 Epoxy Putty sticks to damp surfaces, and will cure underwater, so it can be used to fix leaking basement walls, swimming pools, plumbing fixtures and so much more.
POR-15 POR Patch dries hard, remains flexible, and once dry is totally impervious to fuels and solvents. It's so tough it may actually add strength to weakened metal. The POR-15 POR Patch permanently seals seams, patch holes in steel, wood, and plastic, fix holes in fuel tanks, and much more!