You’d never guess my boat was in a slip from mid-April to mid-October with the logs looking this great! How you may ask? Sharkhide from the factory, then wipe downs with a soft-bristled brush and microfiber towel twice per week at the sandbar while sipping a beer and listening to tunes. A pressure wash once it was pulled, a wipe down with 50:50 vinegar and water, then two re-coats of Sharkhide. Boom. Beautiful. Did I mention the boat was in the water for six months? Hopefully, I’ll never have to brighten the logs with an acid wash and turn them white; I like the original silver look of aluminum logs.