patrick corry
solo canoeist
Although traditionalists will regard my method as heresy, I use 1/4” thick gray butyl rubber tape under the stem bands. Keep it in a warm place prior to use for ideal squeeze-out. Rather than traditional Dolfinite which is likely messier to apply, the tape sticks to the painted canvas and the release paper backing allows easy handling to position it correctly. Once in position, remove the paper and re-install the stem band. Cut off the excess on both sides of the stem band. Over time additional butyl will squeeze out slowly and the excess is easily ‘cut’ off with the corner of a putty blade or screwdriver. Butyl tape is regularly used to waterproof metal roofing seams over long-term use. I have used this on three restored canoes, all of which are regularly used for multi-day trips. You might also consider gluing in toothpick tips in the old screw holes to give the stem screws additional grip.
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