I just bought my first pontoon. 2003 25 foot Benning. I want to keep the underside from rotting. What kinda paint should I use? I'll be in regular water ways. No salt water.
Yes wave shield is underskin lol. Paint or sealing it would make it last less or it would b done at the factory. Marine plywood needs to breathe which allows it to last longer. 5052 .063 gauge is standard for underskin (wave shield).. it will improve your ride and also help slightly with speed and fuel economy.
Marine plywood is what is used in retention ponds, typically submerged. If you are sure it’s marine ply (which is probably 99.99% chance) it does not need sealed.
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