Outdoor finish for pine picnic set

svendole

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Feb 16, 2015
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I made this set of child-sized picnic tables from some pine boards I took down when redecorating our summer-cottage and I would appreciate opinions and advice on how to finish them.

The sets are assembled solely with outdoor glue and standard dominoes, so no nails or screws in them.

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I know this topic is very close to another recent topic, but since I am in Denmark, I'm not at all familiar with the types of finish or the brands being mentioned (and they won't be available to me either) so I hope you will be patient with me and describe the types of finishes in generic terms (terms that I have a chance to find in a dictionary). This also means that I have difficulties in explaining in English the stuff I normally use.
Anyway I've seen so much expertise and willingness to help in the FOG, so I decided to try to overcome the technical language barrier.  [smile]

The boards were originally washed with a lime-solution. I have sanded them down and washed them carefully with a vinegar-water solution and rinsed with clean water and I believe I got all the lime out and a clean surface to start on.

My first idea was to treat them like I normally would do with outdoor stuff, i.e first a rot-preventing and deep penetrating grounding oil, followed by two coats of a water-based top coat, we call it (literally translated) "wood-protection", but I guess it is basically a kind of paint, made for outdoor use including some fungicides. It is normally recommended that you need a pigmentation for UV-protection, so it would have to a colored top coat. My idea was to choose a grey color.

Now, when I had finished the sets, I find the it really a pity to cover the nice wood with paint, so I was thinking of possible alternatives that more or less would keep the look of fresh wood.

The sets will be outdoors most of the year and they will have their share of rain, for sure with sunny days in between. They may also see snow and frost.  Further - they are picnic tables for kids after all - they could also see some ketchup and other stuff, and it would be nice to be able to clean them rather easily.

I certainly don't expect the tables to be pristine looking forever, but I would hope to keep them in good operating condition for more than a few years. Annual re-treatments could be considered if necessary.

My ideas are either some kind of oil-treatment (like you would do for Teak or other hard-wood furniture) or a lacquer (varnish?) like you would use on a boat.

Would this work on these pine sets?

Thank you for any advice!

Ole
 

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Somehow it always happens AFTER I post a question, that I happen to stumble over what could at least be part of the answer in another topic , in this case about front door finishes.

this link 
http://community.woodmagazine.com/t5/Steve-Mickley/quot-Paint-quot-your-exterior-projects/ba-p/1657

suggests to use exterior paint neutral base as a substitute for clear varnish. Sounds very interesting, although it's not clear to me if I will still get the UV protection then? My understanding was the the color-pigmentation provides that

Anyone tried this method?

Rgds Ole
 
I looked at the TDS sheets for a few exterior paints available to me, none list UV protectants.

Tom
 
[member=45463]svendole[/member]
For the last 10-12 years I've had to maintain a teak dining set outdoors. It's covered in inclement weather but still enjoys its fair share of sun and rain. I enjoy the natural teak look and so have been oiling this set in order to keep it in good shape and keep it looking nice.

The first time I oiled it, I used teak oil that I purchased from a boating store. The finish lasted only 3 months.

I next moved to Watco Danish oil and Watco Teak oil. They both lasted about 6 months before needing to be sanded and refinished. Horizontal and vertical surfaces both weathered at the same rate.

Finally, I tried Festool Outdoor oil when it was released a few years ago. I find horizontal surfaces need to be refinished every 12 months whereas vertical surfaces will last over 2 years.

I also like the fresh wood look and don't want to add a sheen to the wood. The Festool oil is the best I've found so far, but I'm still looking for something that will give me me longer service life. I'm open to suggestions...

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This is a shot of the top of the table after about 3 months of use. The chairs and table legs were refinished about 18-24 months ago.
 

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[member=44099]Cheese[/member]

I see Penofin http://www.penofin.com/ mentioned a lot online especially with folks located on the West coast since they are out of California. But I'd be interested in a report from someone who had direct experience with it.

Ron
 
rvieceli said:
I see Penofin http://www.penofin.com/ mentioned a lot online especially with folks located on the West coast since they are out of California. But I'd be interested in a report from someone who had direct experience with it.

Ron

Thanks Ron for the heads-up....I'll check them out because the project list never gets shorter, it's only the subject matter that changes.
 
I've used Penofin on cedar and pine, even plywood.  Several people around here recommended it for exterior work, so I tried it.

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Here's a picture of chicken coop I built in 2008.  I used a clear finish for the cedar and one of the tinted finishes for the plywood.

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Here it is after five and a half years outdoors in Montana with absolutely zero maintenance.

I really don't do much outdoor finish work, but when I do I usually use Penofin or spar varnish, whichever seems appropriate.  I may give the Festool oil a try next time I need that look, it sounds durable.
 

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