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  #1  
Old 10-31-2013
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Painting the mast

Hi All,

I searched the forums and din't come up with a good answer. My 34 year old painted mast is in dire need of a complete refurb including the paint. The PO's did the spray can touch up thing and now I could call my mast "spot".

From what I know about aircraft and auto painting, if the base primer and paint are still stuck good after scuffing, it is not necessary to sand down to bare metal. Any discussion pro or con to this?

Dave
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Last edited by Dave_E; 11-01-2013 at 12:50 AM.
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Old 10-31-2013
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Re: Painting the mast

Did my 44 year old boat mast 17 years ago. The stainless halyards over the years wore through the anodized finish. I did a full strip down of hardware, wiring harness inside of the mast and paint outside. New paint has held up very well. I had to go to the top this year to replace the wind vane. Pant was starting to chalk, vehicle is breaking down, but paint is not pealing...yet. I sanded all the anodized paint off, applied two coats of a two part epoxy primer self etching, made for priming aluminum. Then two coats of a two part top boot paint. My plans were to sell the boat within 5 years of the paint job...but oh well. Looks like I will need to repaint soon, if it starts pealing I will have to strip it down again (allot easier then removing the anodized paint). Just the surface paint vehicle is breaking down, that is what protects the paint and gives paint it's shine. I should be able to give it a light sanding and repaint.

Hope that helps...
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Old 10-31-2013
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Re: Painting the mast

I met a boater in San Diego who completely removed all paint and has a bare aluminum spar though he must have used some covering over the metal. It looked really cool. I could probably get back in touch with an email to his wife, if you're interested in more details.
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Old 10-31-2013
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Re: Painting the mast

The cover that goes over aluminum is aluminum-oxide.
Seriously, if I had a painted mast that needed re-paint, I would consider sanding, and leaving it bare so I would never have to paint again.
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Old 10-31-2013
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Re: Painting the mast

I painted my mast 2yr's ago . I went to a yard and had it craned off the boat . I (we) used single part Interlux Bright Sides . The only prep we did was to sand . I probaley should have done all the good guy stuff like primer , but we did not . It turned out nice . I did a mast on my first boat the same way . After I sold that boat the new owner kept it in my marina for about 10 yr's . After 10 yr's it still looked good!
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Old 10-31-2013
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Re: Painting the mast

If you race, don't paint it a nice bright colour. You will get called over early even when you aren't, they look at the mast and go "oh, he must be over". Ask me how I know.
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Old 11-01-2013
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Re: Painting the mast

I just got the estimate on painting mine as part of the overall work to be done this winter. At over 3k it will wait a while. Like 30 more years.
That including cleaning, acid wash, prime, weld dings full and such to make it cosmetically new.
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Old 11-01-2013
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Re: Painting the mast

I'm looking at this video as an example to try doing myself sometime.

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Old 11-01-2013
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Re: Painting the mast

I Stripped and painted the spars on my previous boat, a 1985 Ericson 35-3. Here is a link to my detailed project write-up. We used Interlux Perfection 2 part paint and applied using the roll and tip method. It came out as good as a professional job.

Mast Refinish - TKRonaBoat
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Old 11-01-2013
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Re: Painting the mast

for those leaving it bare(mine is painted and chalky) what process did you use for sanding down and cleanup?

did you apply any coat to accelerate the oxide finish? I want nothing to do with paint and the expense on my mast...I also plan to not take it down...jejee

thanks
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