davetapson Posted October 23, 2007 Share I've got giant tubes that came with their version of slime - it's a luminous green color. Was doing a ride out at Sondela yesterday and got some kind of puncture - dunno what, there was no thorn in the tyre by the time I noticed. What happened was that the tyre lost pressure and the seat tube and saddle post were covered in green stuff that had sprayed out of the tyre as I rode. Now personally, I reckon the green stuff should have stayed inside and blocked the hole, not sprayed out everywhere and not. My bike came with tubes containing a cream coloured puncture sealant that seemed to work like a bomb. That cream slime seemed to contain fibres, whereas the green stuff just seems to be a liquid - can't see how it would be as effective. Do folks know which puncture proofer sealant is considered most effective / have a favourite? Link to comment Share on other sites More sharing options...
Tumbleweed Posted October 23, 2007 Share how big was the puncture? how fast were you riding? my lbs has a great sealant in the workshop, (it's called oko-mo or something like that) that works a charm? thought about a tubeless conversion? very impressed with joe's. holy roller2007-10-23 02:36:34 Link to comment Share on other sites More sharing options...
dirtrider Posted October 23, 2007 Share Joe's and Stans . They the same thing . I have used the fibre based stuff before and was not impressed . I made big round snotty balls inside my tyre . Link to comment Share on other sites More sharing options...
davetapson Posted October 23, 2007 Share Moving pretty quickly on a gravel road, but had been through single track with plenty thorn bushes. Noticed the flat about 2km from the end so just pumped twice on the way in - had to leave to make appt in Jhb so haven't had a time to have a look at the hole yet. Hole in the tyre must have been made by something reasonably big as you could actually see a hole, unlike your normal thorn hole whick pretty much disappears when you pull the thorn out. PS: Just spoken to Lance at Cycling Experience - he says the original stuff was OKA. Worked like a charm for me - did Bike4Beasts where people really struggled with thorns - I didn't have a problem and took 7/8 thorns that had penetrated the tube out of each wheel when I got home.davetapson2007-10-23 03:59:13 Link to comment Share on other sites More sharing options...
Tumbleweed Posted October 23, 2007 Share yeah, the bigger cuts are a problem, but eliminate this once and for all with joe's. they proved their worth in thorny botswana for me. you still riding out here on weekends? Link to comment Share on other sites More sharing options...
davetapson Posted October 23, 2007 Share Here = Far East? Doing me best to, what with family commitments an' all.Have an epic entry, so need to ramp up with my riding partner pretty soon... Link to comment Share on other sites More sharing options...
Tumbleweed Posted October 23, 2007 Share hey, benoni's the near east, brakpan's the far east! Link to comment Share on other sites More sharing options...
HomerSimpson Posted October 23, 2007 Share I'm very interested in this topic; I have had at least three slime-filled tubes that have suddenly failed and covered everything in a layer of rust-brown liquid. Now as this stuff is supposed to solidify when exposed to air, I was interested to note that even after three or four days the pools of stuff lying around showed no sign of solidifying. I have also heard of several cases where Stans have done the same thing after a couple of months. Link to comment Share on other sites More sharing options...
Tumbleweed Posted October 23, 2007 Share homersimpson, you have to replace stan's and joe's every four or five months i believe. i've found with slime and sludge that it's best to spin the wheels fast to get the compound to seal Link to comment Share on other sites More sharing options...
Johan Bornman Posted October 23, 2007 Share You can't expect a sealant to patch a large, gushing hole in your tyre and tube. Think of it as a bullet wound in your aorta vs a pinprick in your thumb. Blood, although it congeals very, very well, cannot do so in a gushing wound and needs some assistance. The same goes for a tube with sealant inside. Further, a tube doesn't take nicely to sealant. An inflated tube is stretched and squeezed rather thinly against the tyre and there's not much space there (depth of material around the puncture) for the sealant to settle in. A tyre on the other hand has more rubber, thus a thicker "wound" and, the benefit of hair inside the hole (severed fibres from the cords) that traps the sealant and helps the plugging process. In my view, the best route for self-sealing tyres is tubeless. Get Stan's or similar and stop phaffing around with tubes. But don't throw your tubes away, you should always have one on you for when your Stan's fails in the field. A tubeless tyre with sealant is not bomb-proof. As I said, large holes are its nemesis. But, there's hope. Bike shops sell some overpriced tubeless plugs. They're mini versions of tubeless car tyre plugs. Get a set, practice to use it and ride with it. I say practice to use it because the plug is self-vulcanising and requires a clean hole, something that you won't have with sealant gushing out. JB Link to comment Share on other sites More sharing options...
scotty Posted October 24, 2007 Share Get Stan's or similar and stop phaffing around with tubes " Ouch "But don't throw your tubes away, you should always have one on you for when your Stan's fails in the field. " I agree, not if but when. Link to comment Share on other sites More sharing options...
NotSoBigBen Posted October 24, 2007 Share Scotty - but my lips are sealed(if not all my sidewalls but anyway!) BTW - where's Ollie been? Link to comment Share on other sites More sharing options...
HomerSimpson Posted October 24, 2007 Share "But don't throw your tubes away' date=' you should always have one on you for when your Stan's fails in the field. " I agree, not if but when. [/quote'] And that is the worrying part....when your Stans fails in the field....I am at the point of doing a series of experiments with Stans/Joes and some tube gunk here....I have a theory regarding the efficacy of these compounds as a function of conditions. As soon as I reach a conclusion I'll publish a full report, right here, on the Hub Link to comment Share on other sites More sharing options...
dirtrider Posted October 24, 2007 Share If you just gonna play with the stuff go and look at my easy , no fuss , cheap way of preparing your rim for such a conversion somewhere else on the hub . And don't even try and convince "yes tube" scotty !! I looked at his bike the other day and he got permatubes installed ! Link to comment Share on other sites More sharing options...
HomerSimpson Posted October 24, 2007 Share Not going to play with the stuff, want to set up a series of controlled experiments to see what influences the liftetime of these compounds. I for one would want to know more or less how long I can trust the gunk to work in sealing a "normal" puncture. Link to comment Share on other sites More sharing options...
NotSoBigBen Posted October 24, 2007 Share DR - neat trick Scotty has with those 'permatubes with fake valves', who would have known Link to comment Share on other sites More sharing options...
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