Alpha One paint touch up

[cwburkeva]

Not sure if this in appropriate location.

When I had my skeg repaired several years ago (new skeg welded on), the shop painted it, but it keeps peeling or wearing off. Any opinions on aluminum preparation to paint it? I have a can of mercruiser Phantom Black, but want to get good adhesion.

 

[achris]

You need to thoroughly clean the bare aluminium, then coat it with a primer, like Zinc Chromate, Zinc Phosphate or a propreitory etching primer, then paint it with a compatable black top coat. I prefer a 2 pack paint rather than the spray cans.... The final coat is a lot harder than spray can paint.

Chris........

 

[Scott Danforth]

moeller has a zinc primer that works well. it is usually packaged with the phantom black (which is PPG 9000 black) the key is clean the aluminum, sand the aluminum, clean again with an appropriate wax and grease remover then apply the etching primer

 

[cwburkeva]

Excellent! Will attempt this when have her for end of year maintenance and lay her up for the winter.

 

[Bondo]

Ayuh,.... If yer boat is a trailer queen, 'n ya want the drive "Lookin' Good",.... You'll probably never be Happy,....

I scuff the junk off my drive every few years, 'n shoot it with rattlecan Rustoleum black,....
It offers some protection, 'n I don't care 'bout what it looks like, it's under water 5 months outa the year, Nobody sees it,...

 

[gm280]

Really hard to get most any rattle can paint to last very long on such a section of any OB. And that is because it isn't a catalyzed (harden) paint. They literally can't make a catalyzed paint in a spray can because it hardens up after a few hours and would never come out of the can as a spray then.

The better method is you get a pint of paint (or what ever quanlty size you like). Some folks like Tractor Supply brands while others like Rustoleum brands. But it all is mostly the same type paint. But then buy a hardener to mix in the paint before spraying it on the skeg. But only mix up enough for the job and never put any mixed paint back in the can again unless you like solid paint stuck in the can.

Buy a cheap spray HVLP spray gun at HF and use a compressor to stray the paint on the skeg after it is thoroughly prepped. Prep is to sand the skeg, clean it well, and use a Zinc Chromate type primer. Then apply a base sandable primer and see if that looks good. If you need to sand anything, that it the time. Once you have it all looking as good as you want, then spray the mixed (hardened) paint and you are good to go. JMHO

 

[savetexomabeaches]

I've painted mine twice, but it seems after running it through the lake a couple of times, the paint is gone again, so I just gave up. Its under water until it gets put on the trailer.. and if I'm that worried about it, I'll just shoot some black on the skeg so it looks pretty on the trailer, til I run it again

 

[Rick Stephens]

As mentioned a couple times, getting it clean is first priority. Aluminum is porous, so clean is tougher than steel. Next is zinc chromate or epoxy etching primer, and then a two part paint. Even a $50 paint gun will do the job better than a rattle can. Remember, really light coats, especially the first 'tack' coat. Unless you like sanding runs :^)

 

[harleyman1975]

Ah but they do make 2 part paint rattle cans now GM280! They think of everything. But once you catalyze the paint it is use it or loose it. Also as stated before thoroughly sand with 320 grit, etch prime with a chromate primer and then paint.