I read the following summary on another web site and had the exact same experience:
"I don't feel that Sani Tred is a Consumer DIY product. It is difficult to prepare, and apply.". Sani-tred is extremely expensive and does NOT come with clear instructions. I spent $400 and got a MESS. The company offered to give me a 5% discount on MORE product. Unless you're an experienced waterproof professional, I would avoid this product.