POR-15 PU, Epoxy Putty

It's literally so strong you can drill and tap it, yet gentle enough that you can apply it with your bare fingers.

Since it's WATER BASED, you simply wet your fingers, and work it until it's perfectly smooth before it cures eliminating virtually all sanding! But when it cures, it's ROCK HARD, making it perfect for repairing steel, plastics, concrete, etc. It's so Amazing it even sticks to damp surfaces and will cure UNDERWATER. Use it to fix your leaking basement walls, swimming pools, plumbing fixtures and so much more. Keep some EPOXY PUTTY in your toolbox to be used for all types of repairs.