Boundary Waters Quetico Forum :: Group Forum: Boat Builders and Repair :: Now what have I done?
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1JimD |
That haze will disappear once you add Varnish. Good Luck. Like Tom ! I'd be willing to help, if I lived closer ! |
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CabSauv |
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tumblehome |
I’m not sure how you arrived at the finished stems of the canoe in your previous post. The haze in your epoxy is scratches and they disappear with varnish. There is no need to add a forth coat of epoxy after the third unless something went wrong with the epoxy job. At this point you are only adding weight. Do you live in MN? I’ll help you if you need it but you need to acquire some instructional media too. Tom |
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CabSauv |
Yes I’m in MN but down near Winona. If you’re in the neighborhood I’d love a critical eye to guide me. |
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CabSauv |
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1JimD |
If you wet out your cloth and added three Fill coats, with most epoxies you have enough to fill the weave.. Guessing you don't believe you have. Your option now, is to hand sand, stop when you see the weave, move to a different spot. If you don't notice a lot of weave ? Don't add anymore epoxy, as you will end up sanding most of it off. It won't add any strength ! Just Weight. If you still feel you need a coat ? Remove the dust, and wipe down with Acetone. Roll on a coat Then you will have to sand again Always add enough Fill coats to totally fill the weave on the outside. Add Fill coats , while the previous coat is still tacky, for the best bond, clearest finish, and fewest runs ! Waiting longer between fill coats ? Causes trouble down the line. Bit of advice . Don't walk away from your first Wet out coat, until it is just about tack free. That is when outgassing shows up. You need to be there to address them |
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Grizzlyman |
1JimD: " 100% on this. My last build bubbled like crazy. If I wasn’t there It would have looked like a bubble bath! I did it I January in a heated garage and my guess is it was a temperature differential between the wood and the air/epoxy. |
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tumblehome |
This is especially important on the inside where the trapped air cannot escape anywhere except into the fresh epoxy. When I used to glass canoes, I would raise the temp of the shop to 75’ or more. When I was done glassing, the shop temp would have dropped to about 68’. If working in a garage, use a space heater to warm the place up and turn it off or regulate the temp with the heater to prevent it from rising again until at least 6 hours after the last coat is on. For anyone ready to glass a canoe, air temp is very important as well as the temp of your epoxy. It is designed and formulated for use at around room temp. Too cold and the epoxy is too thick, to hot and it sets-up too fast. I do like to warm up my epoxy a bit to let it flow and soak into the glass easily. Tom |