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#11
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William R. Watt wrote:
John Fereira ) writes: A quart of boiled linseed oil runs about $7. A quart of mazola corn oil is about $5. You'd go out and buy a quart of linseed oil to use a couple ounces on a paddle sahft when you could just reach into your kitchen cupboard for a couple ounces of cooking oil you already paid for? Chances are you'd already have paint thinner on hand to thin out the linseed oil. If not, you'd have to buy a quart of that too. That's the only reason I suggested cooking oil. Corn oil doesn't cure, it just soaks the wood, goes rancid and stinks. It provides virtually no protection and is not a useful wood finish. You can buy linseeds, aka flax seed, at a health food store and make your own linseed oil, and some day I might try it to see if it's cheaper. You'd also need to buy some Japan Drier to add to it, unless you want to wait weeks for it to cure. That would cost as much as buying boiled linseed oil off the shelf. Raw linseed oil is not a good wood finish. If you have to go out and buy all that stuff retail just to finish one Greenalnd paddle it can more than double the cost of the paddle considering a piece of red cedar doesn't cost much. True, but you'll have plenty left over for other projects. Greenland paddles are sort of like potato chips, you can't make just one. ;-) Regarding epoxy, you can buy a quart kit of Everfix epoxy for $20 at Home Depot, which is a bargain compared to what you pay for tubes. It has a long shelf life, so it will still be usable when you need it in the future. Polyester resin is fine for laminating fiberglass, but it's a very poor substitute for epoxy when you're working on wooden paddles. It's not an adhesive and it's nowhere near as strong as epoxy. I have lots of red cedar on hand salvaged from the floorboards of a backyard patio deck when I refloored it. I've cut up that red cear for gunwales, chines, thwarts, a sprit and all kinds of things boaty. There's nothing like making a paddle, or a whole boat, for free and I encourage every paddle maker and boatbuilder to try it. Recycling materials is great, if you have access to them. Most of us aren't as fortunate as you in that regard. |
#12
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Brian Nystrom ) writes: Polyester resin is fine for laminating fiberglass, but it's a very poor substitute for epoxy when you're working on wooden paddles. It's not an adhesive and it's nowhere near as strong as epoxy. I have polyester resin and glass fibre on the tip of my cheapest paddle which I use in place of my lightweight paddle on "rough" outings exploring shallow rocky creeks and so forth where it's used to push as much as to paddle. The tip has to be sanded and touched up after an active season, done in early spring as part of the ritual pre-season boat maintenance. The polyester can't be built up too thick or it cracks and comes away in chunks. However adhesion is not a problem as the paddle tip is drlled with small holes into which the resin sinks and grabs hold. I'd use whatever resin I had on hand, and if both, then the least cost. As for cooking oil, in spite of theoretical musings, it has worked well for me and is cheap. Like boot grease I rub in until it's warm. That is supposed to help it sink in. -- ------------------------------------------------------------------------------ William R Watt National Capital FreeNet Ottawa's free community network homepage: www.ncf.ca/~ag384/top.htm warning: non-FreeNet email must have "notspam" in subject or it's returned |
#13
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William R. Watt wrote: Brian Nystrom ) writes: Polyester resin is fine for laminating fiberglass, but it's a very poor substitute for epoxy when you're working on wooden paddles. It's not an adhesive and it's nowhere near as strong as epoxy. I have polyester resin and glass fibre on the tip of my cheapest paddle which I use in place of my lightweight paddle on "rough" outings exploring shallow rocky creeks and so forth where it's used to push as much as to paddle. The tip has to be sanded and touched up after an active season, done in early spring as part of the ritual pre-season boat maintenance. The polyester can't be built up too thick or it cracks and comes away in chunks. However adhesion is not a problem as the paddle tip is drlled with small holes into which the resin sinks and grabs hold. That's all well and good, but polyester resin is lousy if you're simply trying to apply fiberglass over wood, as you would with epoxy. I'd use whatever resin I had on hand, and if both, then the least cost. Well, I guess that's one difference between us. I'll use whatever product is best for the application, rather than trying to save a few cents, which is quite literally the difference when dealing with the small quantities used on a paddle tip. As for cooking oil, in spite of theoretical musings, it has worked well for me and is cheap. Like boot grease I rub in until it's warm. That is supposed to help it sink in. There are a lot of myths surrounding wood finishes in general and oil finishes in particular. Bob Flexner's book "Understanding Wood Finishing" contains detailed explanations of all types of finishes and debunks the common myths and misconceptions about them. Rubbing oil finishes is a good example. It actually REDUCES penetration, as the heat causes the oil to cure more quickly, so it has less time to penetrate before it becomes too thick to do so. Rubbing oil does more for the tactile sense of the woodworker than it does for the wood. |
#14
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Brian Nystrom ) writes: Well, I guess that's one difference between us. I'll use whatever product is best for the application, rather than trying to save a few cents, which is quite literally the difference when dealing with the small quantities used on a paddle tip. I've been in this argument before in rec.boats.building. There's a big difference between the least cost material which meets the requirement and the "best for the application". It's true there is little difference in cost for the amount needed to treat a paddle blade, but you can't buy resins in such small amounts. You have to look at the cost of the least amount of resin sold and there expoxy can double the cost of the paddle. Yes, you can claim that $20 more for epoxy isn't going to send anyone to the poor house, but if you spend double for everthing you do you end up doublign your cost of living. If you can save 20% on everythibng you do its like getting a 20% raise in salary and nobody would object to that. ...Rubbing oil finishes is a good example. It actually REDUCES penetration, as the heat causes the oil to cure more quickly, so it has less time to penetrate before it becomes too thick to do so. this from the guy who objected to vegetable oil because he claims it DOESN'T cure. .. Rubbing oil does more for the tactile sense of the woodworker than it does for the wood. but it does wonders for the woodworker's mind. if provides time to think. try it sometime. -- ------------------------------------------------------------------------------ William R Watt National Capital FreeNet Ottawa's free community network homepage: www.ncf.ca/~ag384/top.htm warning: non-FreeNet email must have "notspam" in subject or it's returned |
#15
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I left my WRC GP natural and it has held up well. Its my 3rd year
using the paddle. I did color it in a unique way though. We were in Prince Edward Island kayaking and the paddle was laid down onto the bright red mud the island is made of. When I picked it back up I noticed it had been stained a gorgeous reddish brown color. I packed the paddle in the wet mud overnight and 3 years later the color is still holding. I brought a 5gal bucket of that soil back to stain my other paddles. Just an idea if you happen to be passing theu PEI with your natural paddle... |
#16
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William R. Watt wrote:
Brian Nystrom ) writes: Well, I guess that's one difference between us. I'll use whatever product is best for the application, rather than trying to save a few cents, which is quite literally the difference when dealing with the small quantities used on a paddle tip. I've been in this argument before in rec.boats.building. There's a big difference between the least cost material which meets the requirement and the "best for the application". I don't agree that polyester "meets the requirement" if you're bonding glass to wood. It definitely doesn't work well enough for the way I use a paddle. It's true there is little difference in cost for the amount needed to treat a paddle blade, but you can't buy resins in such small amounts. You have to look at the cost of the least amount of resin sold and there expoxy can double the cost of the paddle. Yes, you can claim that $20 more for epoxy isn't going to send anyone to the poor house, but if you spend double for everthing you do you end up doublign your cost of living. If you can save 20% on everythibng you do its like getting a 20% raise in salary and nobody would object to that. You're obviously free to live your life as you wish and I certainly appreciate the value of being thrifty, but there's a point where "thrifty" crosses over into "false economy". IMO, this is one of those cases. ...Rubbing oil finishes is a good example. It actually REDUCES penetration, as the heat causes the oil to cure more quickly, so it has less time to penetrate before it becomes too thick to do so. this from the guy who objected to vegetable oil because he claims it DOESN'T cure. I haven't changed my mind, I was simply referring to the effect of rubbing on finishes that DO cure. |
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