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Thread: Decking oil on marine ply ?
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13th November 2016, 05:33 PM #1Member
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Decking oil on marine ply ?
The floor I have made for my timber boat comprises three removable sections of slatted 18mm x 40 mm "Pacific Maple" marine ply which I initially intended to clear coat with several coats of a single part polyurethane - a long and tedious task that I have not yet started.
Almost six months ago in a home renovation I constructed several square metres of hardwood privacy screens on our patio and applied two coats of a residential decking oil (Aussie Clear) by brush as per product guidelines. I gave the screens a light rag recoat today and I am very impressed with the nice natural finish and the weather protection that I got from an oil that is so easy to apply.
I am now wondering wether I could use the same oil as protection on my boat floor - clearly the ply would not absorb as much oil into the thin surface veneer but the end grain would absorb well and be protected and coating and periodic recoating would be easy.
Any thoughts ?
Bagman
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13th November 2016 05:33 PM # ADSGoogle Adsense Advertisement
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14th November 2016, 12:00 PM #2
Check out Flood's "Deks Olje." The Flood Company Australia » Wood Care Products » deks_olje_2
Mobyturns
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14th November 2016, 01:29 PM #3Member
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Thanks for the reply Mobyturns - I understand the traditional use of oils for marine applications (eg teak decking) but my concern was more the suitability for use of oil (any oil) on marine ply.
Bagman
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14th November 2016, 04:51 PM #4
Oils (most any kind) will offer some check resistance and keep the wood relatively healthy. It's just slightly better than leaving it raw in terms of protection, compaired to other coatings. Even with a liberal soaking, it'll still absorb moisture and the worst part is, it wears out pretty quickly. I'm subtropical where I am and traditional oiled surfaces, need treatment at least twice a year, usually three if your boat see lots of sun.
The only things I now oil are teak decks and some spars on traditional craft. Everything else gets varnish or polyurethane, because of the superior protection these offer. On traditional craft, sometimes you just don't have a choice, but given one, I'll use varnish and knock it dull with a scouring pad or by mixing in a dulling agent.
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15th November 2016, 03:35 PM #5
The Deks Olje system leaves a hard finish similar in appearance to a clear marine spar varnish but is intended as a surface prep system. I have used it on top and undersides of the marine ply floors in a couple of vessels now including our 6m Cairns Custom Craft plate aluminium "mini game boat" then used International marine deck paint over it. The results have lasted well over 15 years so far on the 6m MGB, but then the boat is always garaged when not on the water.
Mobyturns
In An Instant Your Life CanChange Forever
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24th November 2016, 12:46 PM #6Member
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I decided to have an "each way" bet after considering the replies from Par and Mobyturns. As my boat will inevitably spend most it's life in the garage even when completed, I reasoned an oil finish on the flooring would probably last a reasonable time. So I purchased some Deks Olje No 1 and applied 8 coats (the first coat took a little while but subsequent coats fly on wet on wet) to the first section of flooring and I love the finish and the application process.
If after I put the boat in service I find the durability is indeed lacking I can apply always any single pack finish (that requires mineral turpentine clean up) because the Deks Olje is apparently also a good primer.
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