The tin will rust as it is air drying. The rusting could take 30 min. Use an all-metal cookie sheet with sides. DO NOT use Teflon-coated, enamelware, glass or plastic containers. 2.Immerse tin into solution.
Tin has to be completely covered.
It will start rusting immediately in the solution. It takes approx. 3.Lift out of solution and stand on edge to dry. It will become very rusty. Let air dry completely for approx.