So another 4 hour
session last weekend at the Evergreen Ranch with Bruce Smith resulted in an almost finished
canoe paddle that certainly exceeded my expectations.
We worked on the transitions and handles and fine tuned the profiles,
thinning out areas that needed it, and sanded it progressively with 60 grit,
120 grit, and 180 grit sandpaper, and even steel wool. I must say that my paddle looks really
amazing, and this is even before I finish it or oil it. And normally I am not even one to say this. I am bothered by even slight blemishes, and
my expectations going into this paddle making session was that I would end up
with something that would look at least somewhat home made. But this does not, it looks very professional. My cherry wood has some beautiful coloring to
it, streaks of heart wood and sap wood with some decorative blemishes in
it. I suppose my surprise is heightened
by the fact that I have not used a real crafted canoe paddle before. I am used to the $30 thick, soft wood rental
special paddles with a layer of crappy, chipping off varnish on it and frayed paddle
tips from past abuse, likely made in China, not one made out of quality
hardwood that someone has spent 10+ hours crafting.
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.
No comments:
Post a Comment