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Old 11-13-2014, 11:15 AM   #32
Xsbank
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City: Pender Harbour, BC
Vessel Name: Gwaii Haanas
Vessel Model: Custom Aluminum 52
Join Date: Sep 2013
Posts: 3,791
Remember if aluminum can't be exposed to oxygen you can get crevice corrosion or pitting. Painting or covering aluminum is ok until moisture gets under the cover, then corrosion goes crazy, even on marine alloys. You are better off not painting your aluminum battery racks, just keep them clean and dry. If this is your first aluminum boat it is contrary to everything else we believe for corrosion prevention.

Look at any painted aluminum boat, check around seams or screws/bolts...
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