Just my $.02, I would avoid Rustoleum , Duplicolor, and even Herculiner for bedlining the tub. The first 2 listed will not last and Herculiner is too rough for bare skin and no UV protection. For DIY spray application, I like the U-Pol Raptor and for roll on, I am very pleased with going with Mostaliner. It not too rough, comes in various colors, and durable. Unfortunately, local stores don't carry it, only online through manufacturer or eBay.