I have been using this product for several years and works well. I leave my boat tied to the dock all summer and find that the cover stays waterproof for about 2 years. The cover is also a deeper black after treatment and looks brand new. It takes me 4 X $14 cans to treat my 20’ Mastercraft with 2 coats (I haven’t had to treat the Moomba yet). Make sure that you are in a well ventilated area when applying, it packs a punch.




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