What is the best waterproof material for swimming pools?

It is best to use polyurethane elastic waterproof coating or polyurethane waterproof coating for swimming pool waterproofing. These materials have excellent water resistance, weather resistance and chemical corrosion resistance, which can effectively prevent the tank wall and bottom from leaking and cracking. In addition, polyurethane elastic waterproof coating has good elasticity and wear resistance, and can adapt to the deformation and movement of the pool wall and bottom.