Rec.boats has had lots of discussion on the best boat wax/polymer, but I
don't believe I have ever read one of the WORST product.

About 8 years ago, I "experimented" with Starbrite Premium Marine Polish
with Teflon. After 30 days, the boat was showing black streaks from air
pollution where the water was running down the side of the boat. I then
went out and purchased Carnauba Wax and did a test on one side of the
boat, using the Teflon Polish on half of a side and the Carnauba wax on
the other half. The Teflon showing the black streaks in 30 days, the
Carnauba lasted the rest of the season