Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 30
  1. #1
    Videre non videri
    Join Date
    Sep 2004
    Location
    Gothenburg, Sweden
    My Bikes
    1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
    Posts
    3,202
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Silicone to seal tyre holes?

    I got my very first flat (at least since I was a kid) today. A piece of glass that managed to (just barely) penetrate the protective weave.

    The glass left a small hole in the tyre, and I can just imagine that over time, stuff will be "sucked up" into that hole and possibly cause another flat. Would it for any reason be a bad idea to fill such a hole with a drop or two of silicone (the kind used for wet areas)?

  2. #2
    Senior Member
    Join Date
    Sep 2007
    Posts
    88
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Why not just put a tube patch on the inside of the tire (and one more on the tube itself) ? That's what I did after my tire got badly pierced by a beer bottle piece of glass. Going strong since then.

    YMMV though...

  3. #3
    Videre non videri
    Join Date
    Sep 2004
    Location
    Gothenburg, Sweden
    My Bikes
    1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
    Posts
    3,202
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Calli46 View Post
    Why not just put a tube patch on the inside of the tire (and one more on the tube itself) ? That's what I did after my tire got badly pierced by a beer bottle piece of glass. Going strong since then.

    YMMV though...
    No, I don't want anything to be able to get stuck.

    I'm only asking here if there's any chemical or mechanical reason not to fill the hole with wet-area silicone.

  4. #4
    Perineal Pressurized dobber's Avatar
    Join Date
    Oct 2003
    Location
    In Ebritated
    Posts
    6,556
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I always just dabbed a bit of super glue into the cut, never seemed to have issues.
    This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.

  5. #5
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,295
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by CdCf View Post
    I got my very first flat (at least since I was a kid) today. A piece of glass that managed to (just barely) penetrate the protective weave.

    The glass left a small hole in the tyre, and I can just imagine that over time, stuff will be "sucked up" into that hole and possibly cause another flat. Would it for any reason be a bad idea to fill such a hole with a drop or two of silicone (the kind used for wet areas)?
    Use crazy glue, the one that doesn't hardify. Use it to repair michelin PR2's with cuts. Can't tell the difference once the repair is done.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  6. #6
    Banned.
    Join Date
    Feb 2003
    Location
    Fort Wayne, Indiana
    My Bikes
    84 Trek 660 Suntour Superbe; 87 Giant Rincon Shimano XT; 07 Mercian Vincitore Campy Veloce
    Posts
    4,766
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Super Glue, Crazy Glue, whatever, they both work just fine for that purpose. If time is not an issue Monkey Glue also works but it takes a bit longer for it dry the above mentioned glues. Never tried the wet area silicone. I carry a small tube of Crazy Glue in my saddle bag; but a glue on patch also works on small holes, I also carry a tire boot in case the hole is much larger then what a glue on patch will cover.

  7. #7
    Videre non videri
    Join Date
    Sep 2004
    Location
    Gothenburg, Sweden
    My Bikes
    1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
    Posts
    3,202
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I've no idea what crazy glue is. Wet area silicone is what I have at hand. Will it work or not? And by not work, I mean that it will damage the rubber or the weave chemically.

  8. #8
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,295
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by CdCf View Post
    I've no idea what crazy glue is.

    !!!
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  9. #9
    Videre non videri
    Join Date
    Sep 2004
    Location
    Gothenburg, Sweden
    My Bikes
    1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
    Posts
    3,202
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by operator View Post
    !!!
    ???

  10. #10
    Senior Member
    Join Date
    May 2007
    Posts
    705
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Do you mean something like a silicone caulk? It's not all that durable... It won't damage rubber or nylon...does tend to make bare steel rust, though.

  11. #11
    Senior Member
    Join Date
    Mar 2006
    Posts
    2,013
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Consider Mr Tuffy tire liners


    FYI: http://en.wikipedia.org/wiki/Crazy_Glue
    2000 Montague CX, I do not recommend it, but still ride it.
    Strida 3, I recommend it for rides < 10mi wo steep hills.
    2006 Rowbike 720 Sport, I recommend it as an exercise bike.
    1996 Birdy, Recommend.
    Wieleder CARiBIKE (folding), decent frame.

  12. #12
    Old Fogy
    Join Date
    Oct 2006
    Location
    Murray, Utah
    Posts
    1,224
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'd bet a nickel that silicone caulk wouldn't last a week. Patch the tube, forget about it.

  13. #13
    Senior Member
    Join Date
    Sep 2005
    Location
    Ohio
    Posts
    1,819
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I don't think the silicone would hurt your tire. I don't think it would work well preventing debris from building up or getting caught in the hole either, but who knows. Give it a try.

  14. #14
    Senior Member Jed19's Avatar
    Join Date
    Oct 2004
    Posts
    3,756
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Shoe Goo works.

    Regards,
    Regards,

    Jed

  15. #15
    Senior Member
    Join Date
    May 2007
    Posts
    705
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yeah...cured Shoe Goo is much more durable. Silicone is very soft, and is easily rubbed off/worked loose...

    ...seems like even duct tape would do a better job, really.

  16. #16
    Senior Member
    Join Date
    Dec 2006
    Location
    Manhattan KS
    My Bikes
    2001 Giant OCR w/105-10spd, Schwinn High-Plains Built for Commute plus 3 Others in Various Stages of Rebuild/Repair
    Posts
    431
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Bob Barker View Post
    Cyanoacrylates

    I would use the medical type: Wiki "In 1998 the FDA approved 2-octyl cyanoacrylate for use in closing wounds and surgical incisions. Closure Medical has developed medical cyanoacrylates such as Dermabond, Soothe-N-Seal and Band-Aid Liquid Adhesive Bandage."
    The irony here is that dermabond has been available in military circles for a fairly long time. Korean war era if my memory serves, just took the FDA that long to decide it was safe.

  17. #17
    Senior Member
    Join Date
    Apr 2007
    Posts
    3,500
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    For tiny holes in tires, everyone I know recommends and uses small bits of tape to reinforce from the inside. the pressure of the tube keeps in in place. I've used duct tape, but prefer fiberglass reinforced strapping tape. I have a couple of tires that have gone through nearly their entire life with that fix, after an early flat.

    But chances are, if it's a tiny puncture hole in the tire, nothing is needed.

    For everything you need to know: http://sheldonbrown.com/flats.html

  18. #18
    Senior Member Ziemas's Avatar
    Join Date
    Nov 2004
    Location
    Riga, Latvia
    Posts
    10,069
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by CdCf View Post
    I've no idea what crazy glue is. Wet area silicone is what I have at hand. Will it work or not? And by not work, I mean that it will damage the rubber or the weave chemically.
    Super Moment or the like. Bison makes some too, Bison Instant it think it's called.

  19. #19
    Videre non videri
    Join Date
    Sep 2004
    Location
    Gothenburg, Sweden
    My Bikes
    1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
    Posts
    3,202
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    My question has been answered. The conclusion seems to be that it won't damage the rubber. That is all I asked and all I need. None of the other substances are known to me, and very likely not available here.

    This is NOT to patch the tube, but to fill the gaping hole (5x1.5 mm) left by the piece of glass I removed.

  20. #20
    Senior Member Ziemas's Avatar
    Join Date
    Nov 2004
    Location
    Riga, Latvia
    Posts
    10,069
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by CdCf View Post
    My question has been answered. The conclusion seems to be that it won't damage the rubber. That is all I asked and all I need. None of the other substances are known to me, and very likely not available here.

    This is NOT to patch the tube, but to fill the gaping hole (5x1.5 mm) left by the piece of glass I removed.
    Heeloooo? Look at post #19, I listed two super glues which are commonly available in Europe.

    BTW, with a hole that big you might want to consider a new tire.

    EDIT: http://www.henkel.com/cps/rde/xchg/h...UID=0000000235

    http://www.bison.net/US/en/view.do?U...c2c7dd2dc07c78
    Last edited by Ziemas; 02-10-08 at 02:21 AM.

  21. #21
    Videre non videri
    Join Date
    Sep 2004
    Location
    Gothenburg, Sweden
    My Bikes
    1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
    Posts
    3,202
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    But stuff like that is not generally available in Sweden. I've no idea why, but there seems to be a very small market for non-mainstream stuff.

    Not that it matters, though. Again, my only question was if the silicone I ALREADY HAVE would work. I'm not interested in spending huge amounts of money on a bottle of something just to fill a hole in a tyre. I would have no other use for it.

  22. #22
    Senior Member Ziemas's Avatar
    Join Date
    Nov 2004
    Location
    Riga, Latvia
    Posts
    10,069
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It's very mainstream stuff.......and a few euro or less a tube.....



    Loctite är ett världsledande varumärke för alla snabblimsbehov.

    Loctite erbjuder ett komplett sortiment snabblim för alla limbehov, även på svårlimmade material som plast och glas. Loctites snabblimmer är lätt att använda, säkert och snabbt.


    Product Categories

    * snabblim
    * Limning av plast och glas
    * Gänglåsning

  23. #23
    Space Dust
    Join Date
    Jan 2008
    Location
    KC Metro
    My Bikes
    Old DF
    Posts
    261
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    5x1.5mm is a big hole in a bike tire. The tire has been seriously weakened if body cords have been cut. Sounds like it is time to replace the tire before it "blows".

    String type automotive tire plug material can be used to fill small holes in tires. It is available at automotive parts stores. When cured, just cut and grind off the excess inside and out.

    Holes in tires have been known to admit small particles of sand etc. The sand can cause additional flats. Sand can also work off a patch placed on the inside of a tire, -usually takes a while tho.

  24. #24
    Videre non videri
    Join Date
    Sep 2004
    Location
    Gothenburg, Sweden
    My Bikes
    1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
    Posts
    3,202
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    No, the hole is only in the rubber, not the cords.

    And the hole was that big when the glass was still in it. Now, it's about 4x0.5 mm.

  25. #25
    Dave TRUMPHENT's Avatar
    Join Date
    Jan 2006
    Location
    Homestead FL
    My Bikes
    Nashbar X-Cross 29r wheels front disc brake
    Posts
    686
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Grate off some rubber from an old tire or tube. Make it as fine a powder as can be. Make a thick slurry with it and some vulcanizing glue. Fill hole with stuff known to be compatible.

    I would have already tried the silicon by now. You can at least read the instructions on the back or visit the mfr's website for further information for your particular formulation. What's the worst that can happen?

    The silicon and tire rubber will combine into a synthetic dna converting your entire bike into a remorseless bouncing space alien that will then eat all your kittens.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •