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Carbon mast varnish

Printed From: Yachts and Yachting Online
Category: General
Forum Name: Repair & maintenance
Forum Discription: Questions & tips on the subject
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=850
Printed Date: 10 Aug 25 at 9:06am
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com


Topic: Carbon mast varnish
Posted By: light
Subject: Carbon mast varnish
Date Posted: 11 Jul 05 at 1:02pm
I've got a superspars mast on a RS600, the mast has significantly faded so I am considering varnishing it. This is not something I've done before (with Carbon) - does anyone have any suggestions as to what to use and where to get it from? Thanks.



Replies:
Posted By: owain
Date Posted: 11 Jul 05 at 3:25pm
i think most people just use ordinary yacht varnish after lightly sanding the mast. However i may be wrong. you can buy this from a chandlery or even a DIY store may have some.

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Owain H
49er GBR055
Fireball 14291
Plymouth Uni Sailing Club & Chelmarsh Sailing Club


Posted By: Scooby_simon
Date Posted: 11 Jul 05 at 3:52pm

Originally posted by light

I've got a superspars mast on a RS600, the mast has significantly faded so I am considering varnishing it. This is not something I've done before (with Carbon) - does anyone have any suggestions as to what to use and where to get it from? Thanks.

 

Won't you just be adding weight just where you don't want it ?



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Wanna learn to Ski - PM me..


Posted By: redback
Date Posted: 11 Jul 05 at 9:53pm

I'd suggest you rub the whole thing down with fine wet and dry so that it is uniformly mat finish.  It will look just as good and be lighter.

But if not surely it has to be epoxy.



Posted By: nathan
Date Posted: 11 Jul 05 at 10:55pm

Firstly tape up the fittings you cant remove easily (gooseneck/ spreader bracket) and sail track. Then lighly sand with 400ish grit wet n dry (definatly used dry). Use 2 pack polyurethane varnish to give a hardwearing finish, and apply 2 coats whilst your at it. Definatly a job to do indoors if you can.

(Thats how I varnished my 800 mast anyway!)



Posted By: Stingo
Date Posted: 12 Jul 05 at 9:20am
Remember Epoxy is degraded by UV light.  If your mast is stored indoors, you dont actually need to do anything,  but if as I suspect you keep it outside and the protective layer over the structural laminate is degrading . . . . . :-(

Several coats of varnish or a coat of paint will provide UV protection (and look good :-)  ) Any decent brand of Spar Varnish is specially formulated for flexible substrates and high UV protection

Why not talk to Superspars themselves for advice? They must have seen this problem before.and know how to keep the additional weight to a minimum.



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Stingo Alb #1554


Posted By: light
Date Posted: 12 Jul 05 at 12:39pm

Thanks for the replys guys.

One other question which I doubt has an easy answer - I have non stlip stips (foam like grip) on the 600 which I want to replace. The problem is getting off the existing grip - is there any chemical or trick (possibly heat!) that can be used to get it off? trying to scrape it off is surprisingly slow work - I can't be the first person with this problem  cheers.



Posted By: Phil eltringham
Date Posted: 12 Jul 05 at 10:27pm
the chances are its pro-grip with a contact adhesive like evostik to hold it down, best way to get it off unfortunately is to scrape it, gently, seem to remember it working a little better when it was wet.  takes a while, use an old stanly knife blade , but scrape, do not try to cut the glue off. 

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FLAT IS FAST!
Shifts Happen


Posted By: redback
Date Posted: 12 Jul 05 at 11:21pm
Have you tried petrol?


Posted By: KnightMare
Date Posted: 12 Jul 05 at 11:25pm
Wont that damage the actual hull. hmmm, what is your hull made out of?

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http://theramblingsofmyinnergeek.blogspot.com/


Posted By: light
Date Posted: 13 Jul 05 at 12:43pm
Grass fiber. I havent tried petrol - I also havent used a sharp blade to cut it off as opposed to scrape it off - will give it a try and let you know!


Posted By: lozza
Date Posted: 13 Jul 05 at 12:55pm

Scrape it off and then rub the area with acetone prior to fitting the replacement.  Try to use less aggressive liquids than petrol, try turps substitute or paint thinner first?

 



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Life's a reach, then you gybe


Posted By: ianwat2212
Date Posted: 13 Jul 05 at 1:17pm
When I replaced the progrip on my 29er recently, I found that good ld white spirit took th glue off fairly well.

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Fireball RSA 14723
Simonis 35 "Scarlet Sun" SA 1500
Royal Cape Yacht Club


Posted By: KnightMare
Date Posted: 13 Jul 05 at 9:04pm
yeah before u stick the new stuff back on clean it with something like nail varnish remover.

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http://theramblingsofmyinnergeek.blogspot.com/


Posted By: Phil eltringham
Date Posted: 13 Jul 05 at 11:27pm
nail varnish remover is acetone

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FLAT IS FAST!
Shifts Happen


Posted By: wallynomore
Date Posted: 15 Jul 05 at 10:42pm

3M adhesive remover, best product out there, keep blades well away you will end up scratching your boat and making a mess, petrol, again make a big mess



Posted By: redback
Date Posted: 15 Jul 05 at 11:39pm

Oh thanks for the advice about petrol.  I thought it would be less damaging than acetone.  I would have thought acetone was about the very worse thing you could put on glassfibre.

Acetone = smells like pear drops = nail varnish remover



Posted By: jonny
Date Posted: 20 Jul 05 at 3:24pm

Any advice on boat insurance its a rip off!!!

http://www.search-uk-insurance.co.uk/ - http://www.search-uk-insurance.co.uk



Posted By: Guest
Date Posted: 20 Jul 05 at 5:30pm

Varnish your mast with a single pack polyurathane varnish (international Goldspar I think is best).

Put it on very thin otherwise it will take ages to go off.

Your mast will look like new.

Rick



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Posted By: Rupert
Date Posted: 21 Jul 05 at 4:56pm

Evostik make a glue remover (little red tins in your local hardware store) which gets sail number glue off, so I would imagine it would do progrip glue too. Doesn't damage gelcoat, but will remove spray paint.

BTW, nail varnish remover is cellulose thinners, not acetone.



Posted By: KnightMare
Date Posted: 21 Jul 05 at 6:04pm
It depends on how old the nail varnish remover is.

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http://theramblingsofmyinnergeek.blogspot.com/


Posted By: Jack Sparrow
Date Posted: 21 Jul 05 at 6:07pm
I'd be using SP systems Ultravar 2000 two pack for the mast. And they
have a range of thinners that will get rid if what ever you need it to.

go here: http://www.spsystems.com - http://www.spsystems.com

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http://www.uk3-7class.org/index.html" rel="nofollow - Farr 3.7 Class Website
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Posted By: Iain C
Date Posted: 28 Aug 05 at 11:10am

This is how I did my Cherub mast (from an old RS600) and I cannot say how nasty it was beforehand...it had actually sat in the bottom of the lake for a few months and was totally unrecognisable as carbon!

Scraped the crap off with a paint scraper, rubbed down with wet and dry (carfeully!) and cleaned any residue off with SP Solvent C (and washed down thouroughly with water afterwards).  For varnish, use International Perfection 2 pack, it has about 7 times the UV resistance of a single pack varnish and is very tough.

Looks the D's B's too, what do you think??

 

 

 

 

 



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RS700 GBR922 "Wirespeed"
Fireball GBR14474 "Eleven Parsecs"
Enterprise GBR21970
Bavaria 32 GBR4755L "Adastra"


Posted By: sailor girl
Date Posted: 28 Aug 05 at 12:38pm
very nice!!!

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Sailor Girl, Queen Of The Forum!



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