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[howie55]

I have planked my deck on top of a false deck, the gaps between each plank is controlled and filled with modelling
Black paint, I have sanded the deck to remove any leaked paint
The deck looks very good, I would like to seal the deck with a yacht varnish, should I use a wood sealer before varnishing ,and would this effect the black paint making it leak out
Any help would be apreaciated
Regards Howie

[derekwarner]

Howie...


Using a Sanding Sealer will allow any rough surface in the decking to effectively be sanded and corrected and the pores of the timber filled


Much easier sanding a Sanding Sealer than raw Varnish, and will produce a superior surface rather than a few coats of Varnish itself


In OZ, Feast Watson brand Wood Sealer is one of the better products, however you must pay for quality
    https://r.search.yahoo.com/_ylt=Awr4_6RarZRkEskCZig36At.;_ylu=Y29sbwNncTEEcG9zAzEEdnRpZAMEc2VjA3Ny/RV=2/RE=1687494106/RO=10/RU=https%3a%2f%2fwww.bunnings.com.au%2ffeast-watson-250ml-sanding-sealer_p1564778/RK=2/RS=.VbdOvgyF03_H1TLAgTi1R71ww0-


Bleeding of the black caulking is always a thought to be considered, as most Sanding Sealers are oil-based. If the black was a water based paint, an oil-based sealer may never fully cure over the black lines ....  so you must trial a small section of decking


Depending on the type of ship or vessel you are representing, considering that most vessel deckings are raw timber [Teak as an example] a few coats of Sanding Sealer, could represent a finished surface without Varnish   


Derek

[howie55]

Thank you for replying Derek good advice, will make up a [size=78%]section of decking as a tryout,[/size]
[/size]Regards
[size=78%]
[/size][size=78%]Howie[/size]

[howie55]

Where did the 78% come form ?, I have a large deck, that would be a large trial piece, a few inches would be adequate
Howie

[roycv]

May I offer an alternate solution?  I always scrape a deck with a sharp edge perhaps a blade from a Stanley knife.  When smooth I do one direction only, clean deck with dry cloth.

I use a piece of cloth wrapped around my finger to apply a thinned varnish, do this 2 or 3 times as these are thin coats and they dry quickly.  Then a few coats of varnish.
It comes out remarkably smooth and no brush marks or brushes to wash out.
I have one sailing boat now 17 years old and the deck still looks good.
Roy

[howie55]

My how time flies, I have been busy on IT and printer problems, [size=78%]diy, bowling gardening and completely forgot to answer your question on how I would seal the hatches, I have purchased a product from Rubber Stuff, it’s a neoprene rubber strip see photo, it’s self adhesive and being 1.5mm thickness it bonds and seals perfectly, the hatch covers are bolted down with small 4M nuts and bolt, the nuts bonded to corner plates see photo, [/size]
[/size][size=78%]Howie55 / Geoff [/size]

[howie55]

Well I hope I have managed to resize my photos, these show the seal in place as a trial, and how I am bolting the hatches down not working it seems
Howie55

[howie55]

Did I just see a photo, why can’t I do it again

[Baldrick]

I would recommend MYLANDS Lacacote wood sealer.   It is a spirit based shellac sealer professionally used in french polishing .  A couple of coats will be absorbed into the wood and will give a lovely soft glow. Not like varnishes and other finishes . It is a tad expensive but very economical in use  a small jar will last you years but read the label, apply it in the open air and don't smoke . You can clean up with with meths.
It does not change the colour of the wood much but does give a lovely soft glow

https://www.brewers.co.uk/product/HJ0920R?gclid=CjwKCAjw6eWnBhAKEiwADpnw9qFhCT3X3_b2BnC-EIOr6CmGum0iC3lInpk7YN1_7D_wfOIEZ6vQ0BoCOggQAvD_BwE

[howie55]

Thanks for replying Baldrick, I have enough P150 sealing resin from coating the hull with glass fibre, so I might use this on its own with an addition of hardener, I have tried it on a test piece which turned out well

[ChrisF]

Whilst the various methods have their merits they don't address the problem of the black lines do they, unless the sanding sealer dries really quickly?

Would it not be better if an aerosol lacquer was used? Just thinking out loud.

Chris

[Baldrick]

  The Mylands wood sealer is spirit based and dries very quickly , 5 mins to touch dry . So quick that you cannot overcoat it until totally cured. I used it on the Chimaera model never any problem with plank caulk smearing. Always found any varnish finish too shiny and unattractive  .

[howie55]

Hi
I have coated a deck sample With P150 , I used this with fibre glass cloth to cover the hull with great success, on its own it did not effect the black grout, but the finish was like glass not the effect I wanted so I have gone back to my original thoughts , has anyone used diluted PVA reduced 4 to 1 with water to seal, and obtain a smooth finish, and with a Matt finish varnish finish the deck
Any thoughts please
Howie

[captain_reg]

I've used tung oil to finish two decks now. One was Sapele with Lime strip 'caulking' and the 2nd was 4mm x 1mm Tankanyka strips over a plywood base. I use it for most wood finishing I do and thought why not try it on a deck. Has proven to stand up well for over a years worth of sailing. Cures to a nice natural looking satin finish. Just mic it 50/50 with white spirit and wipe on and wipe off the excess but 99% of it soaks into the wood. Finish with a coat of it neat for extra protection.

I can dig out some photos if you would like.
RegardsRichard

[howie55]

Hi Richard thanks for replying
I have never heard of tung oil, so although I may still like to know if PVA is useable, I am interested in tung oil
where have you purchased it from, my model is a yacht 54 inches long with a 15 inch beam, I would also like to cover the cabin and hatch covers, so some idea of the amount I may need would be useful
Thanks Howie55

[captain_reg]

I bought mine online, I got 1 litre about 7 years ago and still working through it. Loads available on eBay, I got the Liberon stuff but it will all be the same. 250ml seems to be the smallest available. It goes a long way. I usually wipe it on with a cloth and use a toothbrush to work into into the planks.
RegardsRichard