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  1. #1
    Senior Member vision646's Avatar
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    Tube Patch Plastic

    I just patched my first tube using one of the patch kits which have the rubber cement. Am I supposed to peel the flimsy plastic backing off the patch after placing it or just leave it on there. When I read the park tools tutorial and the bicycletutor.com tutorial neither one mentioned what to do with it. Thanks.

  2. #2
    Galveston County Texas 10 Wheels's Avatar
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    I take it off.
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  3. #3
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    Most of the patches that I've used have a thin slit in that plastic. Gently stretching the tube and patch breaks that slit open and facilitates removal of the plastic from the patch.

  4. #4
    Mad bike riding scientist cyccommute's Avatar
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    Quote Originally Posted by prathmann View Post
    Most of the patches that I've used have a thin slit in that plastic. Gently stretching the tube and patch breaks that slit open and facilitates removal of the plastic from the patch.
    Fold the patch in half (it also makes you pinch the tube in place...a good thing). Plastic should split in the middle. Peel the plastic from the middle towards the outside of the patch. If you peel the plastic from the outer edge, you can lift the patch if it hasn't set completely.

    Or leave it on. It doesn't hurt anything.
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  5. #5
    Senior Member Waxbytes's Avatar
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    I just leave it on, I've pulled off a patch trying to get the plastic off so I just let it ride. Does no harm.
    Uhmm...

  6. #6
    Old Fogy
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    Leave it on to keep the patch from sticking to the tire. It'll fall off soon enough, by then the glue will be dry and the patch cured enough it won't stick.

  7. #7
    Senior Member vision646's Avatar
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    Thanks everyone, I guess I'll just leave it on there since it doesn't seem to be a big deal.

  8. #8
    Bicycles are for Children Jose Mandez's Avatar
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    Glad you asked that, I, too; traditionally I've always tried to get it off, but doing so runs the risk of pulling the newly placed patch off the tire. I'll probably switch over to leaving it on.
    -Jose Mandez

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  9. #9
    Senior Member Chombi's Avatar
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    If you installed the patch correctly, you should have no problem taking it off......take it off, it does not have any use inside your tire. It's just to help you handle the patch after you peel off the waxed paper or foil on the other side.

    Chombi

  10. #10
    aka Tom Reingold noglider's Avatar
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    I heard folklore that said that leaving the plastic on could keep the humidity of the glue under the patch, making it lose its stickum. Is that merely a rumor? I'll be glad to learn I can leave the plastic on!
    You don't read my signature anyway, do you?

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  11. #11
    Senior Member TromboneAl's Avatar
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    If you leave it on, it will send signals to the mother ship of the flat gods, and you'll get a garage flat.
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  12. #12
    aka Tom Reingold noglider's Avatar
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    Hey, I said it was rumor. I love it when I'm set straight (told I'm wrong).
    You don't read my signature anyway, do you?

    Tom Reingold, noglider@pobox.com
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  13. #13
    Mad bike riding scientist cyccommute's Avatar
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    Quote Originally Posted by noglider View Post
    I heard folklore that said that leaving the plastic on could keep the humidity of the glue under the patch, making it lose its stickum. Is that merely a rumor? I'll be glad to learn I can leave the plastic on!
    You don't have to worry about humidity. The glue is hydrophobic, i.e. water hating, and the solvent for the glue should have evaporated before you stuck the patch on. The plastic will crumble and break up in the tire but that doesn't cause any problems other than having small bits of plastic in your tire.
    Stuart Black
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    Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
    Days of Wineless Roads. Bed and Breakfasting along the KATY
    Twisting Down the Alley. Misadventures in tornado alley.
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  14. #14
    aka Tom Reingold noglider's Avatar
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    Heh. That makes total sense. Thanks.
    You don't read my signature anyway, do you?

    Tom Reingold, noglider@pobox.com
    Residences: West Village, New York City and High Falls, NY
    Blogs: The Experienced Cyclist; noglider's ride blog

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