Varnish or Woodstains

Chris_Robb

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Good article in Sailing on the new generation of Microporous wood finishes.

I have used Varnish for 5 years now - and it is hard work, at least 3 coats a year (if you can find a dry day to do it in the UK) The article says that products like Novatech are better - much less work etc.

I agree that they probably last better, however, when I bought my boat the teak doghouse was covered in black gunge and there was a tin of a wood stain product that had been used before. So does it go black with age?

Finally, Do they really look as good as Varnish?

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>Do they really look as good as Varnish? No
I found that the Microporous wood finishes lay on a bit thick and look like a paint job.
A product I found recently @ B&Q is a garden decking stain. It finishes matt, gives a light stain and most important (to me) gives a degree of waterproofing.


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I agree - first and formost - waterproofing. If there were more reliable varnishing days I wouldn't be considering a change, however..... I still like that ultra high gloss look - especially on the teak rails round the 'poop deck'. Getting a small bronze cannon to mount there as well! Black powder can make a hell of a mess - I believe!



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I\'ve been using....

Sikkens on my wooden gaffer for 4 years now. I won't pretend it looks as good as really well maintained varnish, but it looks very much tidier than blackened peeling varnish. Its really easy to apply and maintain.

I use 'pine' which is light enough to still see the grain through. Some others, like Sadolin, look almost like tea coloured paint.

It is expensive though, but I'd give it a very high recommendation.

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As Nigel says, No. They don't look as good a varnish.

Although, in saying that, in previous years, I have used different makes of varnish, Burgess wood sealer, and last year, G4. G4 was a big mistake, as it requires varnish to make it UV resistant, and after a month or so, started to peel/flake off.

So this year, I have stripped it back to bare wood, applied an extremely thinned coat of Rustins matt varnish, then a normal coat of Rustins matt. I only had time to apply two coats, but another two coats will be done in a few weeks time. The first thinned coat soaked right into the wood, and gave a good base for the normal matt varnish.

I didn't think it would look good in matt, but it does. In fact, I have just matt varnished the garden seat. First coat was the same thinned matt, and the next two coats were the normal matt varnish.

Last year, I stripped the coating off the floor boards, and after applying thinned matt, I put on three coats of Rustins satin finish. The floor is still as good and non-slip with the satin finish.

<hr width=100% size=1>regards,
Philip
 
This is the hunt for the Holy Grail isn't it. Four years ago on the advice of the Surveyor I splined some serious shakes in the cabin sides and then epoxied a thick mahogany veneer over the top to create an entirely new finish. So now to do the perfect brightwork. Two coats of Blake's Woodsealer - very nice, easy to apply felt as tough as nails followed by four coats of 2 pot polyvarnish. Great for year 1 - 3 topped up with two coats of polyvarnish each year. End of last year - ugh - a nasty opaque bloom has developed in two places in quite large patches. It is like a fawn coloured paint and appears (I've yet to fully investigate) to be in one of the first layers of varnish ie 6-8 coats down depending on how much I abraded each year before recoating. There is no sign of any failure in the surface of the coating nor blackening of the timber suggesting dampness coming though from underneath. Why fail after three years? Is the rest going to go the same way? How do I repair it so it doesn't look like a charity blanket? Blakes can't tell me. Any suggestions?

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Looks as though you will have to do as I did (post above yours) and take it back to bare wood again.

It sounds as though water has penetrated the top layers of varnish down to and between a layer that did not bond with the previous coat.

A sod of a job, I know. I have just done it. But try the varnish I have used, Rustins. It "appears" to be OK. The matt coating I have put on it not "yacht varnish", but the tin of gloss I have, but not used, is.

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Philip
 
I know you're right but I don't really want to hear that!

Seriously what does bug me is that because I really tried to get a good finish on this, I checked the coating meticulously each year and could see no indication of any failing of the coating. One place where it is is so easy to see that I know I checked out that part. So what's to stop it all happening again. I don't mind the hard work but I really would like to know that I've found the error and avoided repeating it. A chum I know won't have varnish or anything else and has painted all his brightwork a curious brown colour. From 30 ft it looks like varnish!


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I agree with Sikkens

I agree about Sikkens. One coat of Sikkens HLS then two coats of Sikkens Cetol Filter 7 (pine colour). No rubbing down between coats. Each year I apply one coat of the Filter-7. My boat has had this treatment for 8 years.
(Sikkens is now avilable at B&Q Warehouse DIY shops)

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Re: I agree with Sikkens

Previous owner had used Sikkens. I cleared it from some selected areas and re-instituted best yacht varnish (ref a previous comment - good fun applying on a warm dry day). However I cannot recall any visitor asking about the Sikkens areas or remarking on it in any way. So maybe only the owner is the one to worry.

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Micro-pore vs Varnish ...

For me there is no competition .....

If I want gloss then I micropore to improve the wood lasting quality's, then a coat of varnish over top. I can hear the gasps of WHAT !!!!!??????

If I want a good hand-hold and lasting finish with easy maintenance .... then its two coats of micropore.

I have spent years of applying varnish and was introduced to the 'art' of micropore when replacing the front door on my old house ...... The art is NOT TOO MUCH .... too much and it looks like paint ...... keep it to thin coats 2 or 3 and it looks matt but good.... and most important of all - breathes !! Too much and ends up looking like paint and it ain't gonna breath and look after that wood. (I had that door for 6 years and never had to touch it again ..... wind, rain and shine !! When selling the house - the Estate Agents and eventual buyers remarked on it !!)

Why varnish over micropore ..... surely that defeats the MP ..... yes, but the MP gives a very good base and colour stain to varnish over. The lack of coats also allows you to sand it back more esaily than if you applied 3-4 coats of varnish etc.

Well thats what I do, I aint changing .... my boat in UK hasn't been touched up for 2 year and I think considering - she don't look too bad ..... AND I know that when I get around to it .... a light sanding and brush-up .... finished in a day !!


<hr width=100% size=1>Nigel ...
Bilge Keelers get up further ! I only came - cos they said there was FREE Guinness !
 
Re: Micro-pore vs Varnish ...

Nigel - thanks for your long reply. I am going to experiment on the stern cap rails with a new product called Novatech. Interesting technique of paint a coat of varnish to get the shine!

Thanks

Chris

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I\'m a scrooge basically ....

I buy B&Q specials ...... I was told that paint etc. by B&Q is made by a very well known Household name in paints ..... and that quality may be questionable - but unfounded ...... so far I have no arguments with that.

I buy B&Q micropore stain / finish in matt. B&Q exterior varnish etc. Saving a heavy dent on the pocket ..... If I could find a cheaper alternative based similarly - then I would use that. The secret is the micropore stain sinking in and preserving the wood ... without overcoating it to a 'skin'. Sand down lightly to make all smooth, possibly a second light micropore coat, then a coat of varnish.

Just don't overdo it !!!!

Note that years and years .... seaman were 'wiping' thinned varnish into wood ...... The trick was to get the wood smoothed off, then thin varnish really down with as much as 5-1 thinners to varnish. Wipe it on with cloth. Let it dry, sand back all raised hairs, grain etc., wipe another coat on, sand lightly, wipe another on, sand lightly ...... after about 5-6 coats, still with barely nothing on surface of the wood - you then increase the amount of varnish in the mix ..... still wiping, sanding, wiping etc. Possibly another 4-5 coats. What you are aiming to do is build up the amount of varnish deep in the wood to get a protective barrier built up INSIDE the wood. The reduction of thinner to varnish mix is in steps until you finish with 2 varnish to 1 thinners ...... yep - rarely did old seaman use varnish neat ........... result - a door / etc. with a semi matt but lasting finish that rarely peeled. If you needed a real gloss finish - then the last coat was neat varnish well brushed out.



<hr width=100% size=1>Nigel ...
Bilge Keelers get up further ! I only came - cos they said there was FREE Guinness !
 
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