Stripping Varnish

[ianandgilly]

I ve got a nice 27 foot mahogny coach roof, the varnish is very badly scratched, the boat yard recommended burning it of and using JOTUn clipper protective oil(a type of varnish) instead of the usaul varnish . Any comments about careful burning off varnish and using this clipper product ??
thanks

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[nordic]

Use Nitromors, stripping knife and finally synthetic scouring pads (wire wool sheds little pieces of wire dust which will forever show as rust marks on your deck). It may be messy, but unless you are expert with a blowtorch you risk scorching the wood!

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[Casey]

I have stripped almost all of my mahogany surfaces using a hot air gun with very good results. The type using a small gas cylinder has proved very efficient although I had a learning curve and first stripped some paint where it did not matter if I scorched the wood. The finish I chose was the choice of John Robertson from the Gosport Boat Yard when he advised me to use Sikkens; advice which has proved very sound. If you do use it read the leaflet first.

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[Peterduck]

I'll go along with that; bring the heat gun slowly closer to the work until the varnish bubbles, and no closer. Then peel off with a square-ended spatula. Finish by sanding. I am progressively replacing all the Deks Olje on "Swallow" with Sikkens Cetol, which seems to last better. We have lots of UV here in Oz, and it is hell on varnish.

Peter.

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[ianandgilly]

THANKS, I started stripping with hot hair with a scrapper attached to the nozzle with excellent results and started using Jotun clipper protective oil an RAVILAKK varnish
ian


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[Plum]

I also agree with Sikkens Cetol

My boat has had "Sikkens Cetol Filter 7" (over a base coat of Sikkens HLS) for 10 years and I have been very happy with its performance and its ease of application. I recommend using the "pine" colour as all the other colours make the wood very dark. This product does not look as good close up as traditional varnish, but it means you get more time to sail!

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[roly_voya]

Agree with plum about the cetol - brillian stuff unless you need a high gloss finish and have loads of time to maintain it. I use an elecric hot air gun which is a bit slower than flame guns but unless you sit it in one place for ages does not get hot enough to burn the wood, only to soften the varnish.

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[hwkeene]

I've been using a flapper paint stripper on my drill at about 5000 revs/min and it works well. only takes off minimal amounts at a time and can be used across grain if your careful.
Trying water based stain and protector on some small pieces to see how it works, blckfriars and rustins to try, any comments on these products.
regards, harry

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[Mirelle]

Hot air gun, NOT blowtorch

a blowtorch will scotch the wood no matter how careful you try to be with it.

Personally I do not think that any of the "lazy man's imitation varnishes" in the forms of stains and oils are much good; people have been trying to rub oil, etc., on instead for a century now,,,, without much luck. But if you are willing to spend the money and take the time Coelan is a very much more durable alternative and looks almost as good as regular varnish.

<hr width=100% size=1>Que scais-je?

 

[mickshep]

Re: Hot air gun, NOT blowtorch

Agree 100%. Used Coelan for 1st time last year, 1 year on and as good as the day applied, Mike.

<hr width=100% size=1>My Mum say's I'm not a fat b@st@rd, just heavy boned.

 

[Blue_Blazes]

Re: Coelan?

I keep seeing references to Coelan on this forum. I've never encountered the stuff. Can somebody tell me what is it? Where do you get it from? Has Coelan got a website?

Ta,

Bill.

<hr width=100% size=1>One of these days I'll have a boat that WORKS

 

[BrendanS]

Re: Coelan?

website not too informative, and takes a while to load
http://www.mrsimpson.co.uk/ghost/coelan.htm


<hr width=100% size=1>Catapultam habeo. Nisi pecuniam omnem mihi dabris, ad caput tuum saxum immane mittam.

 

[Mirelle]

Re: Coelan?

A few of the grander sort of chandlers stock it - eg Foxes, at Ipswich, do.

Coelan do publish a really excellent handbook to using it on boats.

"Catapultam habeo. Nisi pecuniam omnem mihi dabris, ad caput tuum saxum immane mittam"?

-Nisi dat quod not habet, senex amicus.

<hr width=100% size=1>Que scais-je?

 

[BrendanS]

Re: Coelan?

I'll let you off then

<hr width=100% size=1>Catapultam habeo. Nisi pecuniam omnem mihi dabris, ad caput tuum saxum immane mittam.

 

[Blue_Blazes]

Re: Coelan?

Thanks for that. It certainly looks like good stuff.

Bill.

<hr width=100% size=1>One of these days I'll have a boat that WORKS