We bought a pontoon boat with aluminum hulls that had suffered serious corrosion, probably from electrolysis. we filled the hulls with water to find and mark the leaks. after the hulls dried out, repairing began.. Re: aluminum boat - saltwater corrosion repair reelfishin, epoxy putty like marinetex will bond very well to the aluminum, provided the surface is clean, and there is enough thickness to the metal. the issue you will have is consistancy of thickness of the putty and possible cracking of the putty, due to flex of the hull during use.. Mike teaches muggy weld customer steve (alternative automotive, sarasota, fl) how to repair holes in a heavily corroded aluminum boat, using super alloy 5 aluminum rod and an oxyacetylene torch..
Remove pitting from aluminum on boats posted on june 26, 2014 pitting, those small holes that form in metal, is a type of corrosion caused by a process called depassivation.. Steve at alternative automotive makes a repair on a very corroded portion of his aluminum boat using super alloy 5.hiring a welder to come out and make these repairs could have cost a fortune, but now steve is able to weld all the holes himself at a fraction of the cost.. In the slip aboard your aluminum boat, you’d say that this is where your hull becomes pitted because of a bronze through-hull on a neighboring boat. the rate of corrosion of a metal on its own is determined by how chemically active it becomes when put in salt water..
