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The Norfolk Broads Forum / Broads Boat Owners Q & A / Oak/Varnish refurb.
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Posted By Discussion Topic: Oak/Varnish refurb.

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Lastdraft
Apr-29-2012 @ 12:40 PM                           Permalink
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Hi,Can anyone offer advice on repairing water damage to hardwood varnised. The wood is sound. Heavy sanding down has been advised then sealing before several coats of yacht varnish, but what do I seal it with ? any tips/advice greatly appreciated.


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Grendel
Apr-29-2012 @ 1:00 PM                           Permalink
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I used to use a product called sanding sealer, it was a bit like model airplane dope, where you would clean up the wood, then paint this on, sand it down, then paint another coat and sand and it would basically fill any pores in the wood to seal it, all you need to do is make sure that what you use is compatible with the yacht varnish that you use. in theory the manufacturer will sell the two products - the sealer and the varnish.
Grendel


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Poppy
Apr-29-2012 @ 1:13 PM                           Permalink
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First , it is essential that the wood to be varnished is totally dry. I would then advise starting with 25% Yacht varnish thinned with turpentine, then when dry a or two coat of 50%, followed by 75%.
You will find that by this point the wood is no longer 'soaking up' the varnish. You can then proceed with as many coats of 'full strength' varnish as you need to achieve the desired depth of finish. In my experience, there are no short cuts or miracle products!
Good luck.

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Lastdraft
Apr-29-2012 @ 7:50 PM                           Permalink
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Thank you, won't be attempting till rain stops !!.............mid August maybe ?

VetChugger
Apr-29-2012 @ 10:15 PM                           Permalink
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If Griff were here he would be urging you to use a few coats of 5 star Cuprinol before the varnish. Good advice I'd say.

Trevor

www.normanboats.co.uk


SOS247
Apr-29-2012 @ 12:01 AM                           Permalink
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The only way to treat this area  (all the screen) is to scrap away the dead varnish, plus any dead wood & varnish 50/50 first two coats, sanding in between and then at least another 5 costs of varnish (sanding between costs)

Unfortunately you may need to us a stain to blend it in to other areas, as the wood looks very sun bleached. Use very a fine wire wool to apply the stain as this helps to get it into the wood grain. Also be careful when sanding and sand with the grain at all times.  

When scraping us a very sharp scraper and be careful not to gouge the wood.

Patience is important to achieve the best long term finish!

Good luck

    

They say that 'Hard work never killed anyone' however, sleepless nights, stress, not taking breaks & not eating correctly may just get you there early!!

BroadAmbition
Apr-30-2012 @ 6:21 AM                           Permalink
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Morning Lastdraft,

I'd go for the thinned down varnish method if it was me.

Whichever method you decide, do apply 2 x applications of 5 star cuprinol before hand allowing plenty of drying time


Griff

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Forum Manly Swot 30-07-10

www.grifftile.co.uk    DN9

ranworthbreeze
Apr-30-2012 @ 7:52 AM                           Permalink
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Hello Lastdraft,

Everthing that all the other posters is correct regarding sealing and re-varnishing, but I would look at what was the course of this varnish failing in this area. There could be leakage through the seal on the window or the seal between the timber and the gelcoat.

I would clean down the area and reseal the corner of the window frame and where the timber meets the fibre glass, in the picture you can see that the seal is not good. It may be an idea to put some sealing coats on the timber before making good the the seal to the window and deck.

Regards
Alan Hood
Ranworth Breeze

Lastdraft
Apr-30-2012 @ 8:00 AM                           Permalink
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Morning Griff,

Do you mean use the Five Star Cuprinol after the thinned down varnish ? Thanks to all contributors a great help.

Lastdraft
Apr-30-2012 @ 8:13 AM                           Permalink
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Hi Ranworth Breeze,

I think the major cause of this problem is the fact that the window covers are 6" too short ! longer ones would take the water onto the coachroof and away. Only bought the boat last November,apparently this is a problem with these boats, but to be fair the exterior varnish has not been touched for years and has held up well to the elements of the Solent. I think if I do the job properly it will also last for years.....please ! printing off all advice so I have a chance, wooden boats, don't you just luv em.  

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