We are porcelain reglazing specialist locate in NYC. Visit our company website www.surfacerx.com for more information. Hope this had answer your question. If the chips and missing pcs are locate in the belly of the tub, you can purchase Inlay repair system to repair it. And it has a non-slip resistance surface on top.
Note: Prices on our website are with installation included. Contact us for DIY pricing on these product.