How is a tub refinished?
The tub is scraped, washed and solvents are used to clean it. Then the tub is completely etched twice with hydrofluoric acid, then neutralized and sanded. Solvents are again used. An undercoat is applied and then two or three coats in the color of your choice are applied. The finish coats are not porcelain or epoxy, but an extremely hard catalyzed material.