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Patching tubes question

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    #32
    SchrodingersCat
    Registered Users Posts: 735 ✭✭✭SchrodingersCat


    See if you can peel off the old patch first. Just be careful to work your way all around it first i.e. dont pull it off like a bandaid or else the tube might rip from the hole onwards. If you can get it off, use sandpaper to remove any residue from the previous patch and glue. Then start again.

    As people here have suggested, leave a heavy weight on the patch overnight to ensure that there are no gaps left. I use a clamp for this.
    If you can remove the air from the tube you will increase the chance of a successful patch. Personally, I use a pump that can be switched to vaccum for this. It ensures that the patch gets sucked tight against the hole. It has the added benefit that I can easily roll up the tube when its done and put an elastic band around it for easy storage. Just like how they arrive in their box when new.


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    #33
    tomasrojo
    Registered Users Posts: 11,742 ✭✭✭✭tomasrojo


    SchrodingersCat wrote: »
    See if you can peel off the old patch first. Just be careful to work your way all around it first i.e. dont pull it off like a bandaid or else the tube might rip from the hole onwards. If you can get it off, use sandpaper to remove any residue from the previous patch and glue. Then start again.

    Yes, exactly. So long as you peel it off carefully and give it a good sanding, you can patch again as if the botched one never happened. I usually find the air bleed at the side is from using too small a spread of solution. You want there to be a bit of solution visible all round the patch, and push the patch down into the glue, applying pressure from the centre to the margins.

    Try leaving the solution to dry a few minutes too. Maybe my five-minute wait is too much,
    but leave it bit before applying the patch.
    SchrodingersCat wrote: »
    As people here have suggested, leave a heavy weight on the patch overnight to ensure that there are no gaps left. I use a clamp for this.
    If you can remove the air from the tube you will increase the chance of a successful patch. Personally, I use a pump that can be switched to vaccum for this. It ensures that the patch gets sucked tight against the hole. It has the added benefit that I can easily roll up the tube when its done and put an elastic band around it for easy storage. Just like how they arrive in their box when new.

    This is very thorough!


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    #34
    SchrodingersCat
    Registered Users Posts: 735 ✭✭✭SchrodingersCat


    tomasrojo wrote: »



    This is very thorough!

    Ha! It probably is too much :D


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    #35
    tomasrojo
    Registered Users Posts: 11,742 ✭✭✭✭tomasrojo


    SchrodingersCat wrote: »
    Ha! It probably is too much :D

    I 100% approve.


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