Here you can exchange your experience and datas about your home build boards
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downunder
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Postby downunder » Thu Mar 25, 2021 12:26 pm
No,
Not sanding. Use a fine metal wool.
Simply b/c wool will conform to shape and sand paper will just clog.
Steel wool all the way.
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Jyoder
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Postby Jyoder » Thu Mar 25, 2021 3:17 pm
Matteo V wrote: ↑Wed Mar 24, 2021 6:50 pm
Jyoder wrote: ↑Wed Mar 24, 2021 5:29 pm
Matteo V wrote: ↑Wed Mar 24, 2021 3:37 pm
That said, I am 99.99% sure your point of failure, especially on a tube, is not going to be glue adhesion at the joint. It's better to just say "screw it" on the proper surface contaminate removal, sand, and slightly over build the joint to compensate.
That’s exactly where my early carbon bars failed as I did not clean the inside of the tube. The tube cracked and broke away from the inner “slug”. Zero failures after I started cleaning the tube.
Metal inside? Thermal expansion can induce stresses in that case.
No metal, just epoxy cylinder, nice and smooth. Release agent works, definitely gotta remove it to get a good bond.
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Trent hink
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Postby Trent hink » Thu Mar 25, 2021 4:47 pm
Steel wool is coated with oil, I would not use it on a surface I was planning to epoxy.
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downunder
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Postby downunder » Fri Mar 26, 2021 1:55 am
Use paint prep solvent after.
Infact, paint prep is needed after anything, correct? Even your fingers will leave oils, if we are that much concerned and pedantic.
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