If you were aluminum, subject to water....

[Boomyal]

...what would you like better to keep your beautiful epidermis from ablating away?<br /><br />Would it be Zinc Chromate OR a catalyzed primer OR Zinc Chromate covered with a catalyzed primer? <br /><br />I'm getting ready to prep and paint my 31 y/o outdrive. I know about the vinegar bath, which I will do but I just had occasion to grind/sand thru some catalyzed primer on my trailer and let me tell you that is some tough stuff. Seems like it would stand up well to the abrasion of water.<br /><br />What say you all??<br /><br />ps, I know, this should probably be in the I/O section but just for a moment lets look at this problem as a general interest technical question.

 

[llfish]

Re: If you were aluminum, subject to water....

Zinc Chromate covered with a catalyzed primer.

 

[Dunaruna]

Re: If you were aluminum, subject to water....

Etch primer, then zinc chromate (don't forget the mask!). Top coat with anything you desire.<br /><br />If it were me, etch primer then a 2 pack epoxy.