zinc phosphate outdrive primer ?
 

i'm going to sandblast and repaint my trs drives, k-planes and water pick up's. they have been chewed up pretty good by corrosion and being 17 years old and in the water all summer doesn't help. i was wondering if anyone has tried that primer ? boat u.s. carries it for 9$ a can. is there a better option? someone suggested a two part epoxy to seal the drives before the anti-fouling paint, also, i think there is a saltwater zink kit for those drives. anybody know where to get it? thanks for the help. Fran

That is the only stuff to prime aluminum with. It will hold up better than anything else.

what Tinker said!:cool: :D

I used A self etching primer made by dupont
named Vara Prime(sp.) it is a two part epoxy.
The Emron has been on three years and looks new.

I am getting ready to squirt my drives with Imron. I don't have a corrosion problem, just 14 year old paint that looks crappy. The Imron guy told me to simply scuff the existing paint and spray. Do I need to use self etching primer if I am not going over bare aluminum?

BT

I used the zinc on my transom housings, and an etching primer on my drives. In both cases I used a Sherwin Williams product called "Sunfire" for the color coating. In a few years I should be able to tell you which primer worked best...
:D :D :D :D

You only need etching primer if you have bare aluminum.

I prefer to use zinc chromate.

EXCALEAGLE, I have been trying to page you after seeing one of your posts. Do you have your old 81 series O/D? I would be interested in any parts you have left. I have a 80 series. I did find a company here in the northwest that has parts and knows where ALL the nos is wharehoused.
thanks Geo 100

geo,
i do have some parts left over, flywheel, clutch, shifter, oil cooler, a solid bronze prop, and other things. the people i was getting parts through was marysville marine in michingan a believe. i think i still have their # if you need it. click on my profile and send me an e-mail if you need some parts or info. i'd be glad to help you out if i can.