Painting Aluminium?

[VirtualVagabond]

Originally Posted by bobconnie

Theres always the Old way! sand litely,and wash down and wipe with vinegar,(a mild acid) and paint! worked for years and no blistering ! just a thought!

Explain some more...
That's the only prep?
What paint?
How long does it last?
Have you done it personally?

Vic

[bobconnie]

Ive used Vinegar for years for a etch for aluminum before painting ! Ive use everything for paint from auto paint to serveral 2 part paints, of course ya have to sand before etching, just prepare it like ya would any other surface to paint then etch with the vinegar, let dry and paint ! always worked for me on boats , cars, ect.

[Bambolera]

What about Zinc Chromate primer?

1) Sand
2) Wash
3) Vinegar
4) Zinc Chromate primer
5) Epoxy primer
6) Two part polyurethane

That was the advice I received twelve years ago (the last time I pained my mast). Have things changed? I'm in the process of doing it again.

[Richard_W]

Originally Posted by Bambolera

What about Zinc Chromate primer?

1) Sand
2) Wash
3) Vinegar
4) Zinc Chromate primer
5) Epoxy primer
6) Two part polyurethane

That was the advice I received twelve years ago (the last time I pained my mast). Have things changed? I'm in the process of doing it again.

I have a similar challenge just on my sterndrive. The two part etching prep prescribed by Volvo Penta is nearly impossible to get, and then you have to wear a hazmat suit to use it.

Would vineger + zinc chromate prep work as well for aluminum under water?

[bobconnie]

Sorry, I forgot to say primer! but to me paint means just that, prime, sand, prime again, then paint the finish coats! I will try to rember some folks are not used to my talk style ! and I write as I would talk to ya