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Old 21 June 2022, 11:49   #1
909
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How would YOU do this repair











Extremely awkward position for a patch

Round on every angle

Difficult to glue a flat patch on a round surface

Luckily it's a pinhole slow leak that takes hours to notice

My first thought was to go to the drugstore and grab a syringe. Draw some 2 part glue into it, and inject it right to the back. Then go over top with some form of regular patch, as awkward as it is.

Suggestions welcome
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Old 22 June 2022, 11:12   #2
909
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So I ended up getting a syringe. Used a big needle . The small ones won't draw thick glue. This essentially forms a mushroom of glue internally.

Cut a template with paper first . Test fit it while inflated to maintain it's final shape. Transfer the template to the final material.

Cleaned 4 times with MEK . Applied 3 thick layers of glue. Activate with heat . Applied the patch while inflated. Pressed . Patch won't move. Deflated the tube and put the tube on a round surface. I used a small kettlebell to mimic the inflated shape. Pressed again as hard as physically possible . Cleaned with MEK . Let the glue fully cure.
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Old 24 June 2022, 12:12   #3
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And..... Did it work?
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Old 24 June 2022, 12:16   #4
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Hopefully. I'm letting it cure longer than the recommended 24 hrs .
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