Why are there more patches than cement?
#1
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Why are there more patches than cement?
I remember buying Rema patch kits in these convenient green plastic boxes. Overtime, I’d see different brands, at the LSB cash register, sitting there like candy at the grocery store checkout. Needless to say, I’d pick up a patch kit, knowing that the cement was probably dried out In my current kit.
Well with time on my hands I decided to repair a few punctured tubes. I discovered I had stashed a bunch of patches in a little Tupperware container and repurposed the little boxes for small parts. I figure I typically have 4-5 patches left over per box with dried out cement, and a current surplus of 40 patches
I searched the Forum, and the cement issue has been discussed. I don’t think my leftovers are excessive, instead it’s a conspiracy. I think I‘m getting a value, but the manufacturer is stiffing me on the cement. An extra tube of cement is 20 cent less then the price for kit with 7 patches (on Amazon).
Anyways, any recommendations on alternative uses for these patch or toss them?
Well with time on my hands I decided to repair a few punctured tubes. I discovered I had stashed a bunch of patches in a little Tupperware container and repurposed the little boxes for small parts. I figure I typically have 4-5 patches left over per box with dried out cement, and a current surplus of 40 patches
I searched the Forum, and the cement issue has been discussed. I don’t think my leftovers are excessive, instead it’s a conspiracy. I think I‘m getting a value, but the manufacturer is stiffing me on the cement. An extra tube of cement is 20 cent less then the price for kit with 7 patches (on Amazon).
Anyways, any recommendations on alternative uses for these patch or toss them?
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If you use it before it dries out you will have plenty. I have extra from my patch kit. And it should not dry out if you put it away promptly and seal it tightly.
#3
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You obviously aren't getting enough punctures. I suggest you go out and get some more to even things out.
Actually, I'm pretty sure that you can get the tubes of cement by themselves. Also, I'm not sure if the formulation has changed but I'm finding it less of an issue. I've got one kit in particular where I expect to find the cement dried out every time I use it and it just keeps going. In fact I had to order some more patches recently.
Actually, I'm pretty sure that you can get the tubes of cement by themselves. Also, I'm not sure if the formulation has changed but I'm finding it less of an issue. I've got one kit in particular where I expect to find the cement dried out every time I use it and it just keeps going. In fact I had to order some more patches recently.
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I haven't had to patch a tube out on the road in ages but carry a Rema kit with me. I only carry new, unopened "glue" and have often found that even that will dry out. A while back I bought a fairly large can of Slime glue and store it upside down (a tip I picked up here on BF).
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Try the self-sticking patches. I've used 'em for the past three years. No problems. No worries about glue drying in the tube.
I've used Lezyne, Park and a couple other brands. They all work fine. I replace them about every year, but even some older patches worked well when I needed them.
I've used Lezyne, Park and a couple other brands. They all work fine. I replace them about every year, but even some older patches worked well when I needed them.
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The Slime cement works well for me. It's cheap and readily available at Walmart in the auto section. For home use I buy the small Rema patches in a box of 100. For on the road I carry the self stick Park patches. On these patch threads there is often discussion that nothing other than Rema cement works to properly create a permanent bond. I would not dispute this but IME the Slime works well enough. I've never had a patch fail.
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I haven't had to patch a tube out on the road in ages but carry a Rema kit with me. I only carry new, unopened "glue" and have often found that even that will dry out. A while back I bought a fairly large can of Slime glue and store it upside down (a tip I picked up here on BF).
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My guess is that if the glue is running out, too much is being used. Only a thin film of cement is necessary.
Even the small tube covers about a dozen patches for me.
Even the small tube covers about a dozen patches for me.
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Try the self-sticking patches. I've used 'em for the past three years. No problems. No worries about glue drying in the tube.
I've used Lezyne, Park and a couple other brands. They all work fine. I replace them about every year, but even some older patches worked well when I needed them.
I've used Lezyne, Park and a couple other brands. They all work fine. I replace them about every year, but even some older patches worked well when I needed them.
My experience with traditional glue-and-patch patch kits is that, properly applied, are as good as a new tube.
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I remember buying Rema patch kits in these convenient green plastic boxes. Overtime, I’d see different brands, at the LSB cash register, sitting there like candy at the grocery store checkout. Needless to say, I’d pick up a patch kit, knowing that the cement was probably dried out In my current kit.
Well with time on my hands I decided to repair a few punctured tubes. I discovered I had stashed a bunch of patches in a little Tupperware container and repurposed the little boxes for small parts. I figure I typically have 4-5 patches left over per box with dried out cement, and a current surplus of 40 patches
I searched the Forum, and the cement issue has been discussed. I don’t think my leftovers are excessive, instead it’s a conspiracy. I think I‘m getting a value, but the manufacturer is stiffing me on the cement. An extra tube of cement is 20 cent less then the price for kit with 7 patches (on Amazon).
Anyways, any recommendations on alternative uses for these patch or toss them?
Well with time on my hands I decided to repair a few punctured tubes. I discovered I had stashed a bunch of patches in a little Tupperware container and repurposed the little boxes for small parts. I figure I typically have 4-5 patches left over per box with dried out cement, and a current surplus of 40 patches
I searched the Forum, and the cement issue has been discussed. I don’t think my leftovers are excessive, instead it’s a conspiracy. I think I‘m getting a value, but the manufacturer is stiffing me on the cement. An extra tube of cement is 20 cent less then the price for kit with 7 patches (on Amazon).
Anyways, any recommendations on alternative uses for these patch or toss them?
So my advise would be to buy a couple more tubes.
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No, they won’t. Damaged, “unopened” tubes of cement may dry out. I have tubes of cement that are nearly 10 years old that are unopened and have not dried out. As long as the metal tube is unmanaged, there is no way the solvent can evaporate.
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To make your vulcanizing fluid tubes last longer roll up the tube as you use it and make sure the fluid reaches the opening so no air is in the tube and make sure the cap is on snug. I always run out of patches before fluid.
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The Slime cement works well for me. It's cheap and readily available at Walmart in the auto section. For home use I buy the small Rema patches in a box of 100. For on the road I carry the self stick Park patches. On these patch threads there is often discussion that nothing other than Rema cement works to properly create a permanent bond. I would not dispute this but IME the Slime works well enough. I've never had a patch fail.
It’s a balancing act. Don’t put on too little and don’t put on too much. Too little and the bond is weak. Too much fluid and you run out of fluid before the patches.
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Air in the tube is not a problem. Having the solvent evaporate is the problem. Keep the tube tightly capped but you don’t have to worry about air. Cans of fluid have far more air over the fluid than you can ever get in a tube. As long as the can is closed, evaporation isn’t a problem.
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To illustrate my technique here’s a photo montage.
I mark my tubes with a silver Sharpie. It shows up better than other markers. I also make the X super large so that I don’t have to search too hard to find it.
I sand off the marker to make sure that the tube doesn’t have any mold release on it.
This is a 5g tube of fluid that is nearly 10 years old and has been opened for about 6 months. The patch is an F0 which is smaller than the normal Rema patches.
This is how much fluid I usually use. It’s hard to see but it is a fair amount of fluid.
After the solvent evaporates.
Peel off the foil and avoid touching the back of the patch. Then stick it down on the dried vulcanizing fluid.
I fold over the patch to break the plastic cover and then peel it off from the middle to avoid pulling up the patch. You can see the split on the patch above.
The completed job.
I, like many others, save this job so that I can do a bunch of patches at once. The wait time on letting the fluid dry is not critical as long as it is long enough to allow the solvent to evaporate. I’ve forgotten about patching jobs in the past and have gone as long as 2 weeks and still make a good bond. 5 minutes is usually too little...hence the reason to do this job in batches...but I really haven’t found a time that is too much. I wouldn’t wait a year but a couple of weeks is basically “forever”.
I mark my tubes with a silver Sharpie. It shows up better than other markers. I also make the X super large so that I don’t have to search too hard to find it.
I sand off the marker to make sure that the tube doesn’t have any mold release on it.
This is a 5g tube of fluid that is nearly 10 years old and has been opened for about 6 months. The patch is an F0 which is smaller than the normal Rema patches.
This is how much fluid I usually use. It’s hard to see but it is a fair amount of fluid.
After the solvent evaporates.
Peel off the foil and avoid touching the back of the patch. Then stick it down on the dried vulcanizing fluid.
I fold over the patch to break the plastic cover and then peel it off from the middle to avoid pulling up the patch. You can see the split on the patch above.
The completed job.
I, like many others, save this job so that I can do a bunch of patches at once. The wait time on letting the fluid dry is not critical as long as it is long enough to allow the solvent to evaporate. I’ve forgotten about patching jobs in the past and have gone as long as 2 weeks and still make a good bond. 5 minutes is usually too little...hence the reason to do this job in batches...but I really haven’t found a time that is too much. I wouldn’t wait a year but a couple of weeks is basically “forever”.
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Applied right and a good glued patch will last a lot longer than 3 years. I have tubes with up to 30 patches that are probably dragging 20 years of use. Even in the geographic center of goat head country, it takes quite a while to get 30 flats.
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Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
#20
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Yesterday’s work complete. They are from my niece’s and sister in-law‘s Beach Cruisers (I normally keep low stock of 26 in. schrader).
Plastic patch kit boxes and Park sticks-ons.
The tube drawer. And, 4 unopened cement tubes, I already know are dried out. I just saying $2.20 for just the cement, and $2.40 for the kit on Amazon, makes no sense. While, if they said, “Free patches with the purchase on cement!”, I’m on board.
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(Aside: I have two tubes hanging in the bathroom by the garage/shop. Slow leak issues. Tiny, for 23c which I no longer ride. They've got slow leaks. Yesterday I counted the patches on them, 8 and 5. My next bungee cord.)
Ben
#22
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Like all bike geeks, eventually you have to ask, why? And I’m glad no one mention tubeless! I thank you all for you comments.
@ThermionicScott
Exactly, and for my rides I have plenty of tubes. I was doing a favor for my brother’s family, who knows how to get freebies from me.🤔
@jgwilliams
I don’t want to jinx myself. I used to get my share of snake bites, when I was young and lazy (poor and stupid). I’d either over or under inflate, ride through glass, and skid flat spots on my tires. Now, I help the young and lazy. These were my niece and sister in-law’s tubes, but they are just unlucky. 😉
@ThermionicScott
Exactly, and for my rides I have plenty of tubes. I was doing a favor for my brother’s family, who knows how to get freebies from me.🤔
@jgwilliams
I don’t want to jinx myself. I used to get my share of snake bites, when I was young and lazy (poor and stupid). I’d either over or under inflate, ride through glass, and skid flat spots on my tires. Now, I help the young and lazy. These were my niece and sister in-law’s tubes, but they are just unlucky. 😉
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I'm gonna steal that. Thanks cyccommute !
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I'm gonna steal that. Thanks cyccommute !
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Stuart Black
Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!