The hull truth - boating and fishing forum > boating forums > the boating forum > bottom paint for aluminum boat. log in. we use 2 different primers with multiple coats on the safe boats, and 3 coats of bottom paint for the first application. bottom paint for aluminum boat. thanks a lot folks.. Aluminum boat hull preparation those of you with aluminum hulls should heed this caution: do not put bottom paint containing copper directly over aluminum! if you let these two (2) dissimilar metals come into contact with each other and put them into water, you will have just built yourself a large battery!. Conventional, copper-based bottom paints will eat through an aluminum hull. because there’s no copper in alumipaint af, it won’t cause galvanic corrosion, so it’s great for painting pontoons, aluminum hulls, and underwater metals like running gear and outdrives. also, copper is heavy..
If the pontoon will be used in seawater or in brackish water like estuaries, bottom paint is absolutely necessary to protect the aluminum pontoons from corrosion below the waterline. how bottom paint works. when bottom paint is applied to a boat’s hull, it discourages salt, algae, barnacles, and other aquatic organisms from attaching to the. By coating your boat with wetlander, you will turn your sticky, mud grabbing aluminum hull into a super slick missile that can shoot through the dense floating plants and thick water faster than you ever thought possible. wetlander is super slick.. Aluminum is perhaps the perfect material for building boats, especially flat-bottom fishing and hunting boats. aluminum is lightweight, durable and easy to work with. but like most metals, it can be difficult to paint. the trick to painting aluminum lies in the preparation. a clean surface and proper materials are key..