Quote:
Originally Posted by clambo
Whatever you do don't use pressure treated with aluminum. It will eat your aluminum very quickly. I would use marine grade plywood with a sealer that it compatible with aluminum.
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Good advice. I was unaware that there is a chemical reaction between the two. I have a piece of MDO (Medium Density Overlay) with the paper glued to one side. Its supposed to be marine grade, used on sign work a lot. I think some marine paint and primer and I'm good to go.