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Self Sealng Tubes

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Cycling Equipment
Published
10 July 2004
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22 September 2004
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g.daniels
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  1. Do tubes need massage before mounting?
    Maybe.
    my experience with sealers is confined to nashabar's and Woolmorts-the
    old wools, the new ones appear to be Slimes and well fed.
    but as i have six nashbar's, that'll wait.
    this developed commuting. as each tube absorbed glass shard and holes,
    i'd retire it to the wall and mount a new one. tus the six walled.
    yesterday, (having run out of fresh tubes) i repaired 3, threw out 2,
    and kept 3 more on the wall.
    what gives here is that Nashabr's have fibers in the solution, the
    fibers working to the puncture and then sealing the hole as the fibers
    make an escape from tube pressure.
    some self sealers show fibers blocking the holes, some do not.
    the tubes showing fibers are vastly more effective at retaining
    pressure than the tubes not showing fibers at the holes.
    massage the tubes b4 mounting!!!

    off course , it might be that some tubes have fiobers and some do not
    but that's a lot like the paranoid idea that your tire in not going on
    the rim was defective and came out the wrong size-the upside down
    buffalo nickel theory.

    also, keeping the puncture sealers in storage blocks the whole so well
    that dunking in the trough not only off ends the pigs but doesn't
    reveal any air bubbles. gotta letum soak b4 the solution softens. aha!

  2. g.daniels said:

    Do tubes need massage before mounting?

    Stop right there.

    Bill "if you have to ask..." S.

  3. "S o r n i" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:
    g.daniels said:

    Do tubes need massage before mounting?

    Stop right there.

    No! Don't stop! Don't stop!

    --

    A: Top-posters.
    Q: What is the most annoying thing on Usenet?

  4. No! Don't stop! Don't stop!

    ok. the idea was' fibers clot in storage. like good rope in the dark
    or the electrical gubbins box filled with wire and leads.
    so the massage gets the fibers laid end to end the the centripital
    forces flatten the fibers out against the outer tube wall whilst
    running...
    unless there's an imperfection or eddy giving greater friction then:
    another clot. fiber
    lika hole seaking STP: ___ ___ <TUBE
    U

    EARTH

    care to dance?? do the spook?

  5. g.daniels said:

    No! Don't stop! Don't stop!

    ok. the idea was' fibers clot in storage. like good rope in the dark
    or the electrical gubbins box filled with wire and leads.
    so the massage gets the fibers laid end to end the the centripital
    forces flatten the fibers out against the outer tube wall whilst
    running...
    unless there's an imperfection or eddy giving greater friction then:
    another clot. fiber
    lika hole seaking STP: ___ ___ <TUBE
    U

    EARTH

    care to dance?? do the spook?

    Wow! One of the first almost-intelligible responses from you. I'm going to
    file this one away.
    --
    Phil, Squid-in-Training

  6. its pandemic.
    but on the subject: what i came up with was:
    1)cleaning and removing the oxide from the hole area
    2)marking the hole then hanging the tube ona hook for an extended
    period.
    3) carefully placing a thin layer of rubber cement over the hole area,
    allowing to DRY!
    4)then carefully without encouraging slime movement toward the hole,
    placing gklue and patch on the hole, all with hole positioned up UP!
    with the other unpunctured rubber down. up down up down. cool right?
    well yes and no. this has not been completly sucesful so keep an eye
    on it. i run LOADED TOURING and the equipment gives up at regular
    intervals.
    what next? that's why i asked. i did not ask if ura reading milton
    this week.

    there is a clay, bentonite. Bentonite absorbs water and i guess slime
    then expands. this is a rumour.
    a substance like bentonite(which is probably grindable to a fine
    non-abrasive talc might develop into a stage two self sealing tube
    with the requisite slime liner for the sandwich top.

  7. g.daniels said:

    ...
    there is a clay, bentonite. Bentonite absorbs water and i guess slime
    then expands. this is a rumour.
    a substance like bentonite(which is probably grindable to a fine
    non-abrasive talc might develop into a stage two self sealing tube
    with the requisite slime liner for the sandwich top.

    The clay mineral in question is montmorillinite (also known as
    smectite). There is no clay mineral known as bentonite. However, the
    Bentonite Formation is composed of clay with a high percentage of
    montmorillinite, and there are many commercial products that use
    "Bentonite" as part of their name or ingredients.

    Soils with high montmorillinite contents exhibit significant volume
    change with changes in moisture content.

    --
    Tom Sherman – Quad City Area

  8. bentonite may have been a commercial name for a masonary product.
    thoroseal could be a member of this group.

    what mpoisture expandable and slime compatible substance could a rider
    sprinkle on one side of double stick tape?

  9. http://www.globalspec.com/

    search to rubber cement. Henkel 30540? this site is an absolute
    expletive deleted mind expletive deleted
    as opposed, and we shall see, to the standard bike tire rubber cement
    which probablly expletive deleteds compared to what NASA uses to glue
    the expletive deleted tank to the tripod

  10. forgot> the materials people suggest looking inside a diaper for
    absorbant powder. next stop>groups cooking>automotive

  11. (g.daniels) said:

    forgot> the materials people suggest looking inside a diaper for
    absorbant powder. next stop>groups cooking>automotive

    I will not look inside a diaper
    for after I would need a wiper
    What good would absorbent powder do
    when it's already full, I don't have a clue

    I cannot imagine a use
    it makes me say "What the deuce!"
    why would you want absorbent powder
    for a tube whose leak is louder?

    Finally I must say
    that this is twice today
    I've provided rhymes
    now up to two times
    (isn't that better? my "poetry" you shall not fetter!)
    --
    Rick Onanian

  12. http://www.globalspec.com/

    search this site!! for rubber cement.search it for expletive deleted
    a list
    they have
    and in it
    i yam sure
    theresa high tech cement
    on which yawl can get bent
    i stopped at Rubber Patch Cement
    a company in upper slobovia
    that has the basic stuff
    to glue together your muff
    if not the tripod and tank
    and tommorow i'll sneak over to
    napa and see what's in stock behind the guy whineneningningningning
    about his dart
    caws this bell biz duzn't ring my clock.
    the bell i believe is manure
    when used on self sealing tourers

  13. installed a walmort slime tube.
    went looking for advanced thought glues->beyond local super glues.
    looked on the net and then went to NAPA: bought an 8oz can of BalKamp
    765-1198 Napa Universal Cement made in Muskogee!
    used for: "chemical patchs, cold patch, BOOTS!, and plugs.
    $8-10? whine, look hungry.
    the problem was Bell's cement was failing despite a sanitary
    installation.
    the rubber tubes are different: one's a nashbar, the other the
    Woolmort.
    I have a hundred miles on the woolmort/Napa patch and no sign of air
    leakage.
    this was a pinch cut-two diagnol slices 1/4" each over 1/2" (i was $6
    depressed at seeing this)
    the method was:
    1. place the tube hole up on a 5x4" block allowing the other tube part
    to hang downward
    2.flattening and puckering the hole area to force then allow the
    greeness to escape downward.
    3. it was HOT! maybe 120 on the surface.
    4. opened both holes and wiped clean with straight denatured alcohol
    5. this is kinda medical wound stuff think!
    6. wiped surface with CHO after sanding. razor bladed the seam flat.
    7.whipped out the glue and laid down a fairly thick coat-whatever came
    out and in did so-i spread, the glue made up its own mind as to
    thickness: swipe and grin.
    8. dried in 1 minutes plus at that temp.
    applied a large patch- a full bellwoolmort rectangle.
    9. squoze patch to remove air bubbles and let sit in that heat for 20
    minutes then rewmoved to shade with patch area undisturbed and upright
    FOR 24 HOURS!
    10. wiped can threads clean with CHO. lidded can and turned upside
    down for a glue seal(i hope)

    cost effective!! one can equals one tube.

    the locktite catalog arrived: Locktite has superglues indicated for
    rubber/rubber, a marine never seize( amung two pages worth), and a
    polycarbonate glue! as always, bring $. milspec.

  14. g.daniels wrote:
    <snip>

    Quoted message said:

    the locktite catalog arrived: Locktite has superglues indicated for
    rubber/rubber, a marine never seize( amung two pages worth), and a
    polycarbonate glue! as always, bring $. milspec.

    some of those loctite products are amazing.

    the rubber/rubber one you mention is definitely interesting. it comes
    with o-ring kits, the type that are lengths of solid round rubber that
    you cut to length, then join in a loop to form the o-ring. it's so
    effective, when joined right, you can pull the ring apart, but it won't
    fail at the join. i suspect it's also a candidate for patchless tube
    repair, but haven't yet tried it.

    there's also a medical superglue that's basically just a sterile version
    of the fast acting skin sticking stuff we would play pranks with at
    school. it makes a good substitute for stitches.

  15. [email hidden] (g.daniels) wrote in news:41b0dda1.0409020934.41b75d87
    @posting.google.com:

    I believe a patch is always an emergency procedure, get home, replace the
    tube.
    VV

  16. In article <[email hidden]>,

    epson said:

    I believe a patch is always an emergency procedure, get home, replace the
    tube.
    VV

    Uh oh. I have a tube with at least 15 patches on it! (: Still
    works ok, though--just have to pump it back up once a week.

    --
    B.B. --I am not a goat! thegoat4 at airmail.net

  17. two tools for the self sealer
    a valve tool: a four in one is best.Valve tools are necessary when the
    tube does not take air. Napa may have an auto model or the hardware
    store a OBS model. Harris does not carry this tool. I have a nipple
    cap valve tool(easily lost one way or...)from turd hand.
    the valve tool is necessary-the valve seat gets plugged with slime
    fibers.->reomove the valve and pull the fibers off the seat and the
    tube takes air again.
    and denatured alcohol->good for dissolving slime buildup around the
    nipple's top.
    Napa may also have hi performance patchs more suitable and effective
    for cycle tires than the cycle equipment offerings.
    maybe ask the local motorcycle dealer? search mcycle tire repair?

  18. epson said:

    [email hidden] (g.daniels) wrote in news:41b0dda1.0409020934.41b75d87
    @posting.google.com:

    I believe a patch is always an emergency procedure, get home, replace the
    tube.

    I always had that backward. Easier to just stuff in a fresh tube and go futz
    with the patches and stuff later. With a beer.

    Ron

  19. RonSonic said:
    epson said:

    [email hidden] (g.daniels) wrote in news:41b0dda1.0409020934.41b75d87
    @posting.google.com:

    I believe a patch is always an emergency procedure, get home, replace the
    tube.

    I always had that backward. Easier to just stuff in a fresh tube and go futz
    with the patches and stuff later. With a beer.

    Ron

    Dear Ron,

    Is that a beer or bear with your flat tire? See article
    below.

    Carl Fogel

    http://www.billingsgazette.com/testdex.php?id=1&display=rednews/2004/09/06/build/wyoming/65-bear-fight.inc

    Bicyclist fights off grizzly bear
    Associated Press

    JACKSON, Wyo. - A mountain biker on Togwotee Pass fought off
    a grizzly bear that repeatedly charged him until a companion
    drove the animal off with pepper spray.

    Kirk Speckhals escaped his encounter without a scratch; he
    had only four dirt marks from the bear's claws on his
    forearm, a punctured bicycle tire and a bent rim.

    He said he hopes others learn from the mistakes he made
    during his ride around Pinnacle Buttes - including not
    making enough noise to warn bears, not riding together and
    not carrying pepper spray.

    Speckhals, 46, and companion Tom Foley, said the grizzly was
    persistent and backed away only when there was about a
    second's worth of spray left in the can of deterrent.

    Speckhals gave credit to Foley, who carried his can of spray
    on his hip, for saving his life.

    "I was on the ground with the bear on top of me," Speckhals
    said. "I was waiting for a bone-crunching bite. I was ready
    to die."

    Speckhals and Foley said the day started innocently enough
    when they left for the loop ride on Aug. 29 with another
    friend, Mark Wolling, near Brooks Lake. The route traverses
    a couple of passes on the Shoshone National Forest at the
    9,500-foot level.

    The area is near the Teton and Washakie wilderness areas and
    core grizzly habitat in the Yellowstone ecosystem.

    Speckhals, a ski patroller and quality controller with a
    construction company, said he had ridden the loop several
    times before but had never carried bear spray.

    Before taking off, Foley offered his extra can of spray.
    Wolling took it, figuring if anybody got in trouble, it was
    more likely to be him since he was bringing along his dog.

    Speckhals said he had been ringing his bicycle bell at
    regular intervals to warn bears of his approach. As he
    climbed to the second pass of the trip, he pulled away from
    his companions and stopped making his regular warning.

    Speckhals said he crested a rise and heard a noise he knew
    meant trouble.

    "In the woods, 300 feet away, he was in full charge, coming
    right at me," he said. No question the bear was a grizzly,
    Speckhals said.

    "I got off my bike and put it in front of me and started
    yelling 'Bear! Bear!"' he said. Foley, some distance back,
    heard the cries but could not see the confrontation.

    Wolling was farther behind.

    "All of a sudden I heard 'Bear! BEAAAR!!"' Foley said.
    "Whoa, God, I better get up there," he thought.

    From the screams and sounds of the struggle, Foley realized
    Speckhals was wrestling with a bear.

    Said Speckhals: "I lunged my bike out at him and yelled and
    he stopped."

    The bear moved in again. He charged "six or seven times,"
    Speckhals said, each time deterred at the last moment by the
    bicycle.

    "Finally, he grabbed my bike out of my hands," Speckhals
    said. "He started stomping on it."

    With the bear distracted, Speckhals started creeping away,
    but the bear immediately left the bike and put its front
    paws on Speckhals.

    In a Greco-Roman wrestling stance, Speckhals sensed he was
    going down.

    "This time he just took me out - drug me to the ground," he
    said. "I knew I was in trouble. I rotated and got on my
    chest."

    Foley arrived to see the bear sitting atop his friend.

    "Immediately, I knew I had to get over there, see what I
    could do," he said.

    With pepper spray drawn, he advanced to within 15 feet and
    fired.

    The bear got off his friend but turned and began circling
    Foley who was still spraying in the animal's face.

    "That's when I got scared," Foley said, adding that the
    bear's eyes were very large.

    "They were full of bear spray - not a blink."

    The bear continued to circle as he backed up, yelling for
    Wolling. Foley's can of spray was running low; "I knew I was
    almost out," he said.

    By now Wolling had made it to the site along with the dog
    and fumbled with his pack trying to find the second can of
    spray.

    The dog rushed up, barked twice, then retreated down the
    trail "as fast as his little legs could move him," Wolling
    said.

    With perhaps a second's worth of spray left, Foley tried a
    new tactic. He yelled at the bear at the top of his lungs.

    "I could tell his eyes changed," Foley said. "I knew it was
    over. All of a sudden he took off."

    Speckhals said he didn't see any cubs and doesn't know
    whether the bear was male or female.

    Both Speckhals and Wolling said they're likely headed to a
    store to buy their own cans of bear spray.

    They recommend larger cans, like the one Foley had, rather
    than small varieties a couple of inches tall that appear
    more useful against a human attacker.

    "You want the big can," Speckhals said.

  20. "With perhaps a second's worth of spray left"-

    the tube patch glued with NAPA glue holds still!! at 400 miles.

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