This is interesting. I just repaired a Cyclami tube with their instant patch. It was a roadside repair, and it got me home. It's been two weeks, and it is still holding air perfectly. I'll certainly keep an eye on it for failure! The idea of later making an at-home repair using a solvent patch sounds practical.
Mine was absolutely perfect until it instantly surrendered. Let’s keep an eye how your experiment goes, yeah! Allow a couple of months before making conclusions 😎
@ZavyalovCycling Hee hee. I think it's already happening. Ill assemble an adhesive patch kit. I'll probably try the PVC cement idea mentioned by another poster. I'll also use a separation sheet under a clamp to address the edge separation issue. Too bad I discarded the cute snips of TPU that the tubes were rolled up in. The instant patch did a good job of getting me home though (I did have a backup tube along as well.).
Indeed it failed after 2 weeks. The leak wasn't perceptible with normal butyl methods. Since the TPU isn't as elastic, the leak doesn't open up under pressure like butyl or latex. I held the inflated tube under slightly soapy water, and after an hour, there was a collection of bubbles over the failed patch. I had discarded the TPU rings that had come around the tube, so I cleaned the stickum off the failed patch and used that. I used Oatley PVC cement primer and cement. The solvent in the cement caused the patch to curl, making it hard to work with. Next time, I'll put the patch on a strip of masking tape for handling. I put the completed patch under a piece of release paper and a weight for about an hour, then pumped it up gently. As it held, I installed it back on the bike and pumped it up to full pressure. We'll see... Ironically, the glue instructions say "Do not test with air."
@@markfisher7962 I think the new patch won't cause any concerns! Out of my dozen glued patches, not a single one has ever failed either on Tubolitos or RideNows. The glue just works! 😂 And yes, unlike Tubolito, RideNow patches are from the same thin material as the tubes themselves. This causes the patches to curl instantly if you glue them 🤪 Once again, not a single curled patch has ever fallen off afterwards.
About a month or two ago, my Tubolito tube needed to be patched. I purchased a "glue on" patch kit from Tubolito. I followed all the instructions, but the outer edges seemed not to have adhered properly. I applied a bit more alcohol to clean the outside edges, added more adhesive, and was more careful how I clamped the patch to the tube. The next day, the glue had dried, the patch had completely adhered, and it has held air since then.
Hi, Rick! I had this issue at the start as well. Started to apply the alcohol wipe to BOTH the tube and the patch. The same with glue. No issue since then 😉
Thank you for the excellent and informative video, especially since you reported on its performance after quite a long time. It sounds like these patches are a good emergency solution if you are really stuck on the roadside and have already punctured a spare (2nd) tube.
I saw a video in the online site selling these patches. Although they are only selling the patches(without the rubber glue). In the video, they show first sand and clean the inner tube at the hole area. Then apply the rubber glue solution and wait few minutes for it to dry. After the glue dry, then paste the patch. The glue solution sold separately. I saw both the patches and the glue solution sold on aliexpress, lazada and shopee (app in singapore) For the patch alone, i believe it can be used for temporary sealing.
Dont tell anybody, but I used Gorilla Tape cut in the shape of a patch. A generous sized patch. Stuck it on the TPU tube and it stuck tight. I used an old hairdryer to heat it really hot and it is really stuck. I have 3 patched tubes inflated and hanging up. I think it works.
Thanks, Z! You got right to my question: "Is it practical to apply a patch, at roadside, when you get a puncture and your spare fails as well?" Initially, I heard that TPU patches required 24 hours to fully adhere. It seems that this is not the case(?). It also seems that one can carry a couple of alcohol swabs and some self adhesive patches to get yourself home.
Sure! A couple of alcohol wipes and these patches weigh nothing but can change everything in some circumstances 😀 And yes, they adhere almost instantly, though not permanently 😉
Success using your suggestion. Oatley PVC primer and cement. I had no idea it was the same as vinyl patch kits! Next time, I'll hold the patch material on a strip of masking tape for handling, and press the patch under a foam weight to hold everything flat as it dries.
I do NOT recomend CYCLAMI. I bought a pair of cyclami tubes with metal valves, put them on the wheels and rode about 2 months (60 PSI). Everything was fine, so I bought 3 more to spare. After a few days, one of the tubes started to leak at the connection between the valve and the tube. So I took the 1st spare, put it on the wheel and after inflating it started leaking at the same place. The exact same thing happened to the 2nd spare, so I went back to butyl. Didn't check the 3rd spare cause I was tired of changing tubes at that point. There seems to be a problem with bonding between metal and TPU. I didn't test the ones with the plastic valve though.
What type of glue is used for TPU patches?? Normal rubber vulcanizing glue will not work. What is the correct glue? (I would like to cut up an old tube and use it for patches. But I don't know which type of glue to use!)
I have applied TipTop Camplast to 10+ patches, and it has not failed once. A bit more about the glue in another video: th-cam.com/video/4CvJAxNtZXI/w-d-xo.html
Riding on with a patched tube? LOL! Its for a quick repair to bring you home and then relegate to spare for future rides. Tubes are dime a dozen, your health is not.
This is interesting. I just repaired a Cyclami tube with their instant patch. It was a roadside repair, and it got me home. It's been two weeks, and it is still holding air perfectly. I'll certainly keep an eye on it for failure! The idea of later making an at-home repair using a solvent patch sounds practical.
Mine was absolutely perfect until it instantly surrendered. Let’s keep an eye how your experiment goes, yeah! Allow a couple of months before making conclusions 😎
@ZavyalovCycling Hee hee. I think it's already happening. Ill assemble an adhesive patch kit. I'll probably try the PVC cement idea mentioned by another poster. I'll also use a separation sheet under a clamp to address the edge separation issue. Too bad I discarded the cute snips of TPU that the tubes were rolled up in. The instant patch did a good job of getting me home though (I did have a backup tube along as well.).
Indeed it failed after 2 weeks. The leak wasn't perceptible with normal butyl methods. Since the TPU isn't as elastic, the leak doesn't open up under pressure like butyl or latex. I held the inflated tube under slightly soapy water, and after an hour, there was a collection of bubbles over the failed patch. I had discarded the TPU rings that had come around the tube, so I cleaned the stickum off the failed patch and used that. I used Oatley PVC cement primer and cement. The solvent in the cement caused the patch to curl, making it hard to work with. Next time, I'll put the patch on a strip of masking tape for handling. I put the completed patch under a piece of release paper and a weight for about an hour, then pumped it up gently. As it held, I installed it back on the bike and pumped it up to full pressure. We'll see... Ironically, the glue instructions say "Do not test with air."
@@markfisher7962 I think the new patch won't cause any concerns! Out of my dozen glued patches, not a single one has ever failed either on Tubolitos or RideNows. The glue just works! 😂 And yes, unlike Tubolito, RideNow patches are from the same thin material as the tubes themselves. This causes the patches to curl instantly if you glue them 🤪 Once again, not a single curled patch has ever fallen off afterwards.
The next time I need to manipulate a piece of TPU, I'll try the idea of sticking it to a piece of masking tape first.
About a month or two ago, my Tubolito tube needed to be patched. I purchased a "glue on" patch kit from Tubolito. I followed all the instructions, but the outer edges seemed not to have adhered properly. I applied a bit more alcohol to clean the outside edges, added more adhesive, and was more careful how I clamped the patch to the tube. The next day, the glue had dried, the patch had completely adhered, and it has held air since then.
Hi, Rick! I had this issue at the start as well. Started to apply the alcohol wipe to BOTH the tube and the patch. The same with glue. No issue since then 😉
On my Ridenow tubes I used Lezyne glueless patches and they are working well.
Thank you for the excellent and informative video, especially since you reported on its performance after quite a long time. It sounds like these patches are a good emergency solution if you are really stuck on the roadside and have already punctured a spare (2nd) tube.
I saw a video in the online site selling these patches. Although they are only selling the patches(without the rubber glue). In the video, they show first sand and clean the inner tube at the hole area. Then apply the rubber glue solution and wait few minutes for it to dry. After the glue dry, then paste the patch. The glue solution sold separately. I saw both the patches and the glue solution sold on aliexpress, lazada and shopee (app in singapore)
For the patch alone, i believe it can be used for temporary sealing.
Dont tell anybody, but I used Gorilla Tape cut in the shape of a patch.
A generous sized patch. Stuck it on the TPU tube and it stuck tight.
I used an old hairdryer to heat it really hot and it is really stuck. I have 3 patched tubes inflated and hanging up. I think it works.
Thanks, Z! You got right to my question: "Is it practical to apply a patch, at roadside, when you get a puncture and your spare fails as well?" Initially, I heard that TPU patches required 24 hours to fully adhere. It seems that this is not the case(?). It also seems that one can carry a couple of alcohol swabs and some self adhesive patches to get yourself home.
Sure! A couple of alcohol wipes and these patches weigh nothing but can change everything in some circumstances 😀 And yes, they adhere almost instantly, though not permanently 😉
a MEK or butanone based PVC cement works great. Camplast is one of them, wokrs as a charm
MEK does it not just evaporate? You mean like plumbing glue?
@@Leo-gt1bx yes. The same used to glue PU kids swimming pools
Success using your suggestion. Oatley PVC primer and cement. I had no idea it was the same as vinyl patch kits! Next time, I'll hold the patch material on a strip of masking tape for handling, and press the patch under a foam weight to hold everything flat as it dries.
@markfisher7962 great. Happy to help
I do NOT recomend CYCLAMI.
I bought a pair of cyclami tubes with metal valves, put them on the wheels and rode about 2 months (60 PSI). Everything was fine, so I bought 3 more to spare.
After a few days, one of the tubes started to leak at the connection between the valve and the tube. So I took the 1st spare, put it on the wheel and after inflating it started leaking at the same place. The exact same thing happened to the 2nd spare, so I went back to butyl. Didn't check the 3rd spare cause I was tired of changing tubes at that point.
There seems to be a problem with bonding between metal and TPU. I didn't test the ones with the plastic valve though.
Thank you for the feedback! Have not tried Cyclami tubes yet - just the patches.
Has anyone found somewhere to buy just the glue? I have enough patches from the tubolitu kits.
What type of glue is used for TPU patches?? Normal rubber vulcanizing glue will not work. What is the correct glue?
(I would like to cut up an old tube and use it for patches. But I don't know which type of glue to use!)
I have applied TipTop Camplast to 10+ patches, and it has not failed once. A bit more about the glue in another video:
th-cam.com/video/4CvJAxNtZXI/w-d-xo.html
Use “chloroprene” adhesive. Also known as neoprene adhesive
My new ride now tube leaks from valve stem jount to tube
in my experience, self adhesive patch not work at all, it leaks air immediately once you inflated the tire
They are not. Camplast works.
Specifically the glue sold in Perrelli smart tube repair kits is “Camplast” branded
Riding on with a patched tube? LOL! Its for a quick repair to bring you home and then relegate to spare for future rides. Tubes are dime a dozen, your health is not.