patching tires
#2
Senior Member

Joined: Feb 2001
Posts: 12,948
Likes: 9
From: England
Patchin inner tubes
ID hole, mark with cross-hairs if needed.
Roughen surface with sandpaper, for adhesion. Wipe clean.
Smear thin film of rubber solution larger than patch.
Wait until tacky; a bit dry but with some grab. Test it out on a spare inner.
Some people add another layer of rubber solution and wait till tacky.
Apply patch, pressing from centre outwards to exclude air.
Crease patch to break film or foil. Peel film from centre, outwards. NOT from edge, inwards.
Some people rub chalk dust over remaining tacky rubber to prevent sticking to tyre. I don't.
Patches with feathered of bevelled edges are best.
ID hole, mark with cross-hairs if needed.
Roughen surface with sandpaper, for adhesion. Wipe clean.
Smear thin film of rubber solution larger than patch.
Wait until tacky; a bit dry but with some grab. Test it out on a spare inner.
Some people add another layer of rubber solution and wait till tacky.
Apply patch, pressing from centre outwards to exclude air.
Crease patch to break film or foil. Peel film from centre, outwards. NOT from edge, inwards.
Some people rub chalk dust over remaining tacky rubber to prevent sticking to tyre. I don't.
Patches with feathered of bevelled edges are best.
#3
Senior Member

Joined: Sep 2010
Posts: 8,327
Likes: 1,112
From: Roswell, GA
Bikes: '93 Trek 750, '92 Schwinn Crisscross, '93 Mongoose Alta
Roughening the surface removes the layer of oxidized rubber and parting compound from the surface to allow a chemical bond to the patch, so don't under-do it. I use acetone at home and an alcohol wipe on the road to be sure any oils or waxes are removed. Roughen/clean an area larger than the patch and apply plenty of vulcanizing fluid to the entire area. Let the vulcanizing fluid (not really a glue) dry naturally, don't blow on it. Don't touch the tube or patch bonding areas with your fingers. Use the narrow edge of a coin, wrench or tire lever to "stitch" the patch down, especially the edges, for good adhesion; pressing with your fingers is not enough pressure to ensure a solid void-free bond.
#4
LET'S ROLL
Joined: Nov 2009
Posts: 4,789
Likes: 59
From: NEW YORK, NY - USA
Bikes: 2014 BMC Gran Fondo, 2013 Brompton S6L-X
I usually wait 30 sec. - 1 minute before putting on the patch.
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#6
Senior Member


Joined: Feb 2004
Posts: 30,225
Likes: 649
From: St Peters, Missouri
Bikes: Catrike 559 I own some others but they don't get ridden very much.
The instructions on my patch kit say to wait 5 minutes so I wait 5 minutes. I always carry a spare tube (or 2) with me so I do my patching in the comfort of my workshop and waiting 5 full minutes isn't a big deal.
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