Fix your cracked and leaky, chipped or unattractive bathtub floor with the Bathtub Floor Repair Inlay Kit. A cracked, leaky bathtub isn't just unsightly - it's a liability. Water seeps through the cracks, collecting on the floor below. The result can be structural damage and worse yet, mold. Mold can be a serious health concern.There are literally thousands of tubs and showers with sagging fiberglass bottoms that have cracked with use. This is a problem that just won't go away and the consequences are serious. Water can seep in and rot the subfloor. Worse than that, mold can easily grow and can cause respiratory problems.