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Old 09-10-2013, 02:39   #1
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Join Date: Apr 2013
Location: Wimborne, Dorset, UK
Boat: Weekend Courier 20'
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Coelan varnish .. mirror finish?

P { margin-bottom: 0.21cm; } I have been advised Coelan varnish is very good but can someone tell me if it does give a really nice mirror finish when applied properly on to marine ply.
A description I have read of a slight rubbery appearance has put me off slightly.

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Old 09-10-2013, 02:55   #2
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Location: London, UK
Boat: Helleman, 45' Steel Trawler
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Re: Coelan varnish .. mirror finish?

add some thinner (about 5%, must be supplied by coelan too) and it will help a lot...and it also helps to apply to a horizontal surface. i think you will struggle to get a varnish like finish, but it gets close, and you wont have to do it again for years...

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Old 24-10-2013, 09:42   #3
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Join Date: Jun 2013
Location: Seattle WA
Boat: Roughwater, pilot house, 58 ft
Posts: 485
Re: Coelan varnish .. mirror finish?

Polyurethane, hard floor varnish to be the best. The hardware store polyurethane is as good as the marine stuff. I use MinWax bought at Lowes on the stern deck, and teak bright trim. However, for the weathered ware areas first coat is epoxy

I have not hears/seen Coelan.
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Old 16-11-2013, 10:58   #4
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Join Date: Jan 2009
Location: Ladner B.C.
Boat: Marine Trader 41 Summer Wind 1
Posts: 8
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Re: Coelan varnish .. mirror finish?

I have a 1980 41' Marine Trader aft cabin trawler, It is identical to a Defever 42.

I put Coelan on my Flybridge deck and my cabin top in the spring of 2010.
$2000 for approx. 200 sqft

1. It has not pealed, separated, cracked or leaked water.
2. When it gets wet, the caulking goes white but it dries out. Coelan breathes.
3. Coelan has a dull appearance except when it is wet.
4. On close examination there are little black specks that are appearing under
the coating.
5. Although Colean claims it will fill in all cracks and will expand when the
wood expands and contracts with the heat, this is not true. After I finished
applying the coating in the spring of 2010, we had an exceptionally hot
summer, the deck cracked beside the caulking and opened up a seam
1/64" wide by 3ft long. Their were only a couple of cracks like this
however, so overall their claims are sound.
6. 4 years on I haven't touched the coating and it has not leaked.
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