I spent 15 years in the chemical industry supplying waterborne resins to polyurethane suppliers. W/B PUR technology has come a long way, and I have used with great success on floors at home.the marine environment is very tough as we all know. I chose a solvent based approach when refinishing the sole on our 1998 H376. I have been very pleased with Daly's Profin oil-modified urethane on my cabin sole. (The original OEM finish). Dayly's is a great company to work with. I pulled the sole, sanded down and applied 4-5 coats. Easy application with foam brush, and a beautiful finish that has worn well.