U20 Class Member's Forum

General Category => U20 Boat Maintenance & Care => Topic started by: John Wolfe on December 06, 2011, 12:15:54 AM

Title: Carbon mast is fading in spots
Post by: John Wolfe on December 06, 2011, 12:15:54 AM
I noticed this weekend that the carbon mast on Breakaway is becoming blotchy and fading in spots.  Is this normal?  Is there something I should be doing maintenance wise to keep this from getting worse?  The surface is still smooth.  It just seems like a color change.  Photos attached. 

Appreciate any advice on this.

Thanks,

John Wolfe

Title: Re: Carbon mast is fading in spots
Post by: Michael Eisenberg on December 06, 2011, 04:31:44 AM
From correspondence I had with C-Tech:

Q: What do you recommend for recoating for UV protection? I have a couple of areas around the mainsail luff area that are turning white. I want to recoat the entire mast. I'm not sure what quality of material is available in California. Specific recommendations are welcome.

A: The clear coat we use is a DuPont 696 automotive paint.
Title: Re: Carbon mast is fading in spots
Post by: Jake Cartwright on December 17, 2011, 01:12:00 AM
John,

UFO's carbon mast looks about like yours. I had carbon mast experience on a Wyliecat 30 I owned in SF Bay, same thing happened. Some WC 30 guys have just painted their mast, as the clearcoat breaks down with UV rays. UFO is in Redding now, very hot in the summer. I am going to touch up the clear coat this spring, but the C-Tech guys suggested painting the entire mast white at some point. As of now, the tops of the spreaders are painted (C-Tech recommendation) due to the heat build up on the horizontal surface.

Jake
Title: Re: Carbon mast is fading in spots
Post by: John Wolfe on December 18, 2011, 02:41:04 AM
Thanks for the info guys.  I am thinking I might paint the mast as a longer term solution.  Do you know if this is a job only for a boatyard or are there less expensive options to explore?
Title: Re: Carbon mast is fading in spots
Post by: Jake Cartwright on December 20, 2011, 12:48:15 AM
John, my Wyliecat friend who paints his carbon mast just says to go to the auto supply store and get a can of Duplicolor self etching primer and follow up with Duplicolor topcoat. He says to get something that strips any wax off the mast before you paint. He's had the boat 10 years, his mast looks great, so I guess it works. When I paint mine, that is what I'll do.

But this is second hand advice, I haven't done it, just a caveat!
Jake
Title: Re: Carbon mast is fading in spots
Post by: Glenn VanHeel on December 20, 2011, 01:49:38 AM
We used awlgrip two part clear on our Viper mast. Sprayed on.

Our U20 is still tin.
Title: Re: Carbon mast is fading in spots
Post by: John Wolfe on January 09, 2012, 05:46:10 PM
Jake,

Thanks for the tip.  I am going to try the Duplicolor Enamel this Spring.  I will let you know how it works.  Can't be any worse than the stuff C-Tech used that only last about a year and a half.

Now the big question is which color - Red, Yellow or Purple?  (Is there a class rule on mast color?)

- John


Title: Re: Carbon mast is fading in spots
Post by: Billy Ellis on April 16, 2012, 11:37:06 PM
I just painted mine with a 2 part epoxy paint. I used black so it would hide scratches. White seems to get marked up pretty quick.
Title: Re: Carbon mast is fading in spots
Post by: Chuck Ballew on February 01, 2014, 01:14:36 AM
I'm going to paint my carbon mast soon. Have the same white spots developing and flaking on the spreaders.  Any suggestions on how. Should I sand it, what grit, whats are good brush on paint to use. Any suggestions would be appreciated. You can reach me at 800-231-6666 extension 223.