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I thinned the blade as
much as I would feel comfortable with – it is flexible yet reasonably
strong. I wanted it light enough for
long paddling days while tripping. I
just need to take care in shallow areas and when the canoe is grounded not to
hit things with it or push off the bottom much, although some of that is
inevitable when paddling small rivers and shallow areas.
First is whether to stain it or not. I do like the natural oiled wood look, but at
the same time a darker color that still shows the grain would look great as
well. Then there comes the oil or
finish. Seems like everywhere you look there’s
different recommendations for finishes, although the general consensus is Tung
oil and/or varnish is a good protector for paddles. Linseed oil was also recommended, but this
yellows with age, whereas Tung oil does not.
Tung oil comes from the seed of a tropical tree. But when you start looking into Tung oil, it
is also very confusing, some are polymerized Tung oil (treated for better
drying), some are natural 100% both of which are hard to get, I would need to
get them from lee Valley or some specialty store. The ones at hardware stores labeled ‘Tung Oil
finish’ aren’t really Tung oil, they are
a mixture of oils and solvents with
varnish and may not even contain Tung oil.
There’s also sealers too, which I don’t really
know the purpose of, that you apply before the Tung oil itself. Then there’s spar varnishes for marine use
which may not necessarily be what you think either since the formulas have
changed much recently due to volatile organic chemical limitations. Sheesh, seems like I need a degree in
chemical engineering just to figure out what finish to get.
Now I just need to
decide on how to finish it, which seems like a daunting task in itself.
Then there’s the application method. I hear mixing oil with a solvent like
Turpentine to thin it, and letting it stand upright in a bucket of it will have
it wick throughout the material. Then
you can gradually apply thicker coats of oil in between drying and
sanding. Some coat the lower blade
portion with varnish and leave the handle just oiled as this would create less
blisters. Some would just leave the
whole thing oiled and that’s it. Some people
mix an oil with varnish and solvents to create a custom blend with a
combination of properties.
Bruce Smith recommends finishing with a boiled linseed oil. thinned with mineral spirits. The applications start thin (higher spirit to oil ratio) to penetrate the wood to the inside, and get gradually thicker, about 9 applications worth over the course of a week. After researching, I understand linseed oil gets yellower with age, whereas Tung oil does not, so I think I will opt for the tung oil and finish it this way. Unfortunately I have to get some from Lee Valley, since I have no idea who has it around here, certainly the standard hardware stores don't carry real Tung oil.
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