It sound like one of Targets coatings. I had some SC9300, and after reading some posts, here. I decided to test it. I put a coat on a lure that has been coated with an Etex/D2T mix.I brushed it on and hung dry. After two days I suspended it in water for 3 days. When I took it out, it appeared the same as when it went in. SO, it probably will work, BUT, I believe the Waterborne Urethanes are finicky as to what they're top coating. Mine won't adhere to metal when put in water.
Pick up a Pt and give it a good testing. You can use scrap and throw aways to practice on. I found that brushing works better for me than dipping. A thinner build up and nearly as fast. It goes in smooth, not heavy like the epoxies.