Applying Canvas Filler to a Wooden Canoe -update version
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- čas přidán 17. 08. 2020
- Updated video on the process used to apply latex canvas filler to a wooden canoe. Check out my web store at www.orcaboats.ca for kits, plans, and materials for boat building.
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Another great video...thanks! I have used both traditional filler (without white lead of course) and rt10 and much prefer rt10 too. Currently working on a Bastien that was rescued just before conversion to firewood. Best regards from Calgary.
Rod, this updated video is really helpful. Using the sponge to smooth the filler is a great advance over the earlier method. But I too found the RT10 mastic you supplied much thicker than the video seems to show. The application was heavier, I think, than it should have been. Used 1/2 pail on a 12' canoe for first coat and the results aren't very smooth after two coats. I might consider thinning for the third coat.
Can you recommend a high build primer? The ones I find online are in spray cans for automotive use. Thanks, Bill
I have had several people make the same comments about thickness of the filler. Not sure if it is just me moving faster and knowing when and how much water to thin it down as I apply. It does dry pretty fast. As for half a pail on a 12 footer, I do think that would have been on a bit thick. Need to rub it into the canvas well. As for the primer, I use, recommend and sell Interlux PreKote. Works well for me.
@@OrcaboatsCa Today, applying the third coat I think I found the problem--my plastic putty knife is too flexible. It's a 6" drywall plastic putty knife made by Richard Co. When I stiffened the blade by holding it in two hands and using two fingers on the backside, I was able to draw a much finer layer of the mastic. I believe I was getting too much "drag" with the bald flexing. So, for the last quarter of the third coat I was able to get results that look more like yours in the video. Thanks for your instruction and help! BTW, I have found that a Shinto rasp reduces lumps or thick areas pretty effectively.
@@billjames2398 Glad you were able to sort it out.
Great videos and audio. You mentioned that before you put the mastic on that you cover the canvas with a preservative. What preservative do you use? Thks in advance
I just use clear wood preservative by ArmourAll.
Thank you for your fantastic videos. I recently found a 50+ year old canoe that had canvas removed and covered with fiberglass in the 1970s. I would like to restore it with canvas, but can't know if the fiberglass can even be removed at this point. There seems to be very little rot on the wood so... would you have an opinion as to whether this is a project one might choose to undertake?
The best way to get the old fiberglass off is to use a heat gun to soften the resin and lift off the glass. I do have some videos on that. It is likely old polyester resin if done some years ago so it will lift off easier than epoxy resin and fiberglass. Then lightly sand the hull but you will not get all the resin out of the wood since you will sand right through all the tack heads. Chemical paint strippers may lift more after the heat process.
@@OrcaboatsCa thank you so much! I am going to purchase the canoe and enjoy having a new hobby! The last time I was in a similar canoe was an Old Town 25 years ago on a lake in Vermont. Very memorable time.
I assume the filler makes the surface smoother and the boat go faster? I make foam kayaks and canvas it with a drop cloth like other guys do. Never heard of the filler until today.
Yes the filler is thick so that the canvas becomes smooth. Then it is prime painted and then color added. This is the traditional method for canvas canoes but the filler is not traditional as older canoes would have had a thick painted applied to the canvas, sanded smooth and then color paint. On kayaks, they were often just painted.
What are you using as a spreader to apply the Robson's mastic? Thank you.
Simple plastic spreader that you would find in auto body store. 3M is that brand that I have.
Thank you! @@OrcaboatsCa
Rod, how many coats of Robson's mastic can one expect to get from one bucket on a 15 foot canoe? Thanks
You will get 3 thin coats with probably some left over. If not, then it went on too thick. Better to apply multiple thin, smooth coats, than heavy lumpy ones.
@@OrcaboatsCa Thanks so much. A friend of mine just put Robson mastic on his canoe (we are actually working on separate canoes in the same garage) and he ended up using more than half the mastic on the first coat. It took him about 5 hours to get it on. To get a second coat on he added 1 oz of water and stirred it up to thin it out. His failure to get 3 coats on his 15.5 foot canoe has me worried so i am thinking I should thin the mastic out with 2 oz of water and stir it up well with a drill powered auger. I will be putting Robsons mastic on my canoe in about a weeks time. Your comment on this idea would be very much appreciated. Thanks.
@@burnts1enna The first coat does take more as it is pushed into the canvas with the wet sponge or cloth. But you should be able to get three coats on the canoe. Wont matter if you put it on heavier, as long as the filler is smoothed out. Best he went first, so now yours should be easier as you now have some experience on how it works. Remember that any small imperfection can be filled with the high build primer that I recommend as that can be sanded much smoother.