Registered: 03/27/02
Posts: 5466
Loc: Forked River, NJ
According to Aquagard if you put 2 coats on it will last 2 years. 3 coats will last 3 years and so on. We have never tested it but we used for a peroid of 5 years and just put it on every year. It was cheap enough and easy to put on.