The chemicals used in PT plywood under the new regulations are very
corrosive to aluminum. You might be able to isolate it at attachment
points, but if any chemicals leach out with rain or lake water and sit
in the bilge or in any nooks and crannys, who knows what it would do.
Sam

I would never put the new ACQ PT lumber in an aluminum boat, it
corrodes aluminum very fast, so does its leachate, even the older CCA
PT is corrosive. Good luck,
Jonathan