Puncture repairs failing

Doki said:

I've had a couple of punctures that I've repaired leak
again. The patch bubbles up above the hole and eventually
gives up. I've used bog standard cheapo puncture repair
kit gear, and done all the usual sanding, lots of time for
the glue to dry things. Any ideas?

Maybe you're using the rubber/vulcanising solution as "glue"
rather than as the primary repair?

After you put on the goop it should be just on the final
verges of tackiness before you actually put the patch on, so
the solution over the hole itself should be pretty much dry
before the patch is in place.

I've been tempted to use the solution as glue in the past,
but it really doesn't work that well! If you are letting the
solution almost dry before adding the patch maybe your
cheapo kit has cheapo vulcanising solution or you have inner
tubes made from tubular cheese, but I've yet to find any
that don't work if I let it dry to just about tacky /before/
the patch goes on.

Pete.
--
Peter Clinch Medical Physics IT Officer Tel 44 1382 660111
ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382
640177 Dundee DD1 9SY Scotland UK net
[email hidden] dundee.ac.uk~pjclinchOpen ↗

Doki said:

I've had a couple of punctures that I've repaired leak
again. The patch bubbles up above the hole and eventually
gives up. I've used bog standard cheapo puncture repair
kit gear, and done all the usual sanding, lots of time for
the glue to dry things. Any ideas?

Replace your puncture kit with Rema Tip-Top.

--
Guy
--
May contain traces of irony. Contents liable to settle after
posting. chapmancentral.co.ukchapmancentral.co.ukOpen ↗

"Doki" <[email hidden]>typed

Quoted message said:

I've had a couple of punctures that I've repaired leak
again. The patch bubbles up above the hole and eventually
gives up. I've used bog standard cheapo puncture repair
kit gear, and done all the usual sanding, lots of time for
the glue to dry things. Any ideas?

Tip Top patches & glue ?? two layers of glue Check all inner
tubes for leaks annually.

Fix your punctures in batches, at home, when you're in no
hurry, have a radio or good music to hand and have a BIG
mug of tea.

Check tubes under water following repair.

Puncture gourmet.

--
Helen D. Vecht: [email hidden] Edgware.

Doki said:

I've had a couple of punctures that I've repaired leak
again. The patch bubbles up above the hole and eventually
gives up. I've used bog standard cheapo puncture repair
kit gear, and done all the usual sanding, lots of time for
the glue to dry things. Any ideas?

Alow the glue to completely dry *before* applying patch.
(It works as a dry contact adhesive). Press patch down
firmly, then allow more time for it to bond: at least 3
mins, pref 12 hours!

Do not test tube by inflating it before fitting in tyre
(although a little air to round it out is ok).

That should work even with cheapo stuff, but try a different
brand of patch & cement just in case your's are
extraordinarily poor.

~PB

Doki <[email hidden]> wrote:
: I've had a couple of punctures that I've repaired leak
: again. The patch bubbles up above the hole and eventually
: gives up. I've used bog standard cheapo puncture repair
: kit gear, and done all the usual sanding, lots of time for
: the glue to dry things. Any ideas?

I'll probably get flamed for this, but just bin the tube. If
you by tubes mail order in batches of 10 you can get them
for £1 - £2 a go depending on quality. 10 last me 18 mths -
2 years on average.

My time is worth more than that, and I've never been happy
with repairs on narrow (23mm) tyres. I've seen them lift off
in the heat before and I don't want that happening when I'm
doing 50mph and braking hard!

Arthur

--
Arthur Clune clune.orgclune.orgOpen ↗ "Technolibertarians make a
philosophy out of a personality defect"
- Paulina Borsook

Helen Deborah Vecht said:

have a BIG mug of tea.

But only if you're seriously injured, Shirley?

in message <[email hidden]>, Doki

(') said:

I've had a couple of punctures that I've repaired leak
again. The patch bubbles up above the hole and eventually
gives up. I've used bog standard cheapo puncture repair
kit gear, and done all the usual sanding, lots of time for
the glue to dry things. Any ideas?

Tip-top patches.

--
[email hidden] (Simon Brooke)
jasmine.org.uk~simonOpen ↗

IMHO, there aren't enough committed Christians, but
that's care in the community for you. -- Ben Evans

Arthur Clune said:

I'll probably get flamed for this, but just bin the tube.
If you by tubes mail order in batches of 10 you can get
them for £1 - £2 a go depending on quality. 10 last me 18
mths - 2 years on average.

Not flamed, but "for differing values of tube." I find it
quite hard to get genuine 406 tubes (quite often the shops
sell a sort of one-size-fails-to-fit-all 406 and 451 generic
20" thing), so I tend to keep them and repair them. Also,
having used up the spare in fixing the puncture, I usually
want to get a usable spare for the next journey. It is an
immutable law of physics that the p*nct*re fairy only
strikes when the shops are shut...

Guy
--
May contain traces of irony. Contents liable to settle after
posting. chapmancentral.co.ukchapmancentral.co.ukOpen ↗

Just zis Guy said:

Not flamed, but "for differing values of tube." I find it
quite hard to get genuine 406 tubes

Only particularly impossible if you want that with a presta
valve, but unfortunately I do :-( (Mental note to self: ask
pal about to head to Darth Ben's Little Shop of Temptation
to get a couple of above as spares for the Roosmobile...)

I did follow Arthur's method when I'd get a pile of
Specialized tubes for 700 x 28 in the EBC bargain bin at the
annual sale, but one downside of Weird Bikes is they have
Weird (i.e., often not 700c or 26"😉 wheels and there is,
apparently, "no demand" for such with presta valves (which I
much prefer to Schraeders). Bah!

Pete.
--
Peter Clinch Medical Physics IT Officer Tel 44 1382 660111
ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382
640177 Dundee DD1 9SY Scotland UK net
[email hidden] dundee.ac.uk~pjclinchOpen ↗

Just zis Guy, you know? <[email hidden]> wrote:

: Not flamed, but "for differing values of tube." I find it
: quite hard to get genuine 406 tubes (quite often the shops
: sell a sort of

But if you are just buying box of 10 mail order once a year
this doesn't apply?

Though if your tubes are more, the economics changes

Arthur

--
Arthur Clune clune.orgclune.orgOpen ↗ "Technolibertarians make a
philosophy out of a personality defect"
- Paulina Borsook

Arthur Clune said:

But if you are just buying box of 10 mail order once a
year this doesn't apply?

Roos was /trying/ to get a couple mail order last week from
the Usual Suspects. With prestas they really are quite hard
to come by in the UK :-(

Quoted message said:

Though if your tubes are more, the economics changes

And because they're rare, they do indeed cost more :-(

Pete.
--
Peter Clinch Medical Physics IT Officer Tel 44 1382 660111
ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382
640177 Dundee DD1 9SY Scotland UK net
[email hidden] dundee.ac.uk~pjclinchOpen ↗

Peter Clinch said:

Maybe you're using the rubber/vulcanising solution as
"glue" rather than as the primary repair?

Is is glue, albeit a type of adhesive that works very well,
and best when it's dry (or nearly dry). The patch is
literally stuck to the tube, and that is the main repair,
rather than filling in the hole.

There's no actual vulcanisation or even amalgamating going
on so "vulcanising solution" is a misnomer, a confusion left
over from the days when patches really did need to be
vulcanised with a flame. Normal modern patches can be peeled
off to prove this when they're heated. Try pressing a
patched tube against a heated non-stick frying pan then
peeling it off. Thanks to Jobst Brandt for this one!

Some patches do work better than others, and patches can go
off if they're many years old (or have been stored in hot
conditions, I think). Patches have stuff which is like
dried cement on the foil side. I recommend the patches Mike
Dyason sells.

~PB

Pete Biggs said:

Is is glue, albeit a type of adhesive that works very
well, and best when it's dry (or nearly dry). The patch is
literally stuck to the tube, and that is the main repair,
rather than filling in the hole.

Well, you learn something every day, they say. I've just
learned something, so I can go home now! ;-)

Pete.
--
Peter Clinch Medical Physics IT Officer Tel 44 1382 660111
ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382
640177 Dundee DD1 9SY Scotland UK net
[email hidden] dundee.ac.uk~pjclinchOpen ↗

Peter Clinch said:

Well, you learn something every day, they say. I've just
learned something, so I can go home now! ;-)

I didn't realise it myself until recently. I did the Brandt
Pan test, fully expecting to ruin my tube in efforts to
remove the patch, but it just peeled right off! We've been
conned all these years with the "vulcanising" marketing BS.

I'm off for a bike ride if it's cooled down.

cheers ~PB

Arthur Clune said:

Quoted message said:

"for differing values of tube." I find it quite hard to
get genuine 406 tubes (quite often the shops sell a
sort of

Quoted message said:

But if you are just buying box of 10 mail order once a
year this doesn't apply?

It is hard to find any at all, let alone boxes of ten.
Having suffered fifteen punctures in two weeks before I
worked out what was causing them would also have been quite
expensive (and stock-exhausting).

When I find a supply of shiny new ones I buy all they have
in stock and bin any manky ones from the spares bin. Since I
can fix a tube with about five minutes of expended time (the
chemistry of the glue doesn't actually require that I suit
watching the glue dry, after all) I consider that a
reasonable return, especially at anythign up to £5 per tube.

But I do generally bin cheap Schraeder-valved MTB
tubes, for sure.

Guy
--
May contain traces of irony. Contents liable to settle after
posting. chapmancentral.co.ukchapmancentral.co.ukOpen ↗

In article <[email hidden]>, Arthur Clune

Quoted message said:

I'll probably get flamed for this, but just bin the tube.

Happy to agree with you on this one. I can repair a puncture
in 5 minutes but I can replace a tube in under 2.

Quoted message said:

If you by tubes mail order in batches of 10 you can get
them for £1
- £2 a go depending on quality. 10 last me 18 mths - 2
years on average.

I use about 150 in an average summer - less when it's
dry and more when it's wet - and pay significantly less
than £1-00:-)

--
A T (Sandy) Morton on the Bicycle Island In the Global
Village millport.netmillport.netOpen ↗

Arthur Clune said:

Doki said:

I've had a couple of punctures that I've repaired leak
again. The patch bubbles up above the hole and eventually
gives up. I've used bog standard cheapo puncture repair
kit gear, and done all the usual sanding, lots of time
for the glue to dry things. Any ideas?

I'll probably get flamed for this, but just bin the tube.
If you by tubes mail order in batches of 10 you can get
them for £1 - £2 a go depending on quality. 10 last me 18
mths - 2 years on average.

My time is worth more than that, and I've never been happy
with repairs on narrow (23mm) tyres. I've seen them lift
off in the heat before and I don't want that happening
when I'm doing 50mph and braking hard!

Arthur

I agree with you Arthur.

"Arthur Clune" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Doki <[email hidden]> wrote:
: I've had a couple of punctures that I've repaired leak
: again. The patch bubbles up above the hole and
: eventually gives up. I've used bog standard cheapo
: puncture repair kit gear, and done all the usual
: sanding, lots of time for the glue to dry things. Any
: ideas?

I'll probably get flamed for this, but just bin the tube.
If you by tubes mail order in batches of 10 you can get
them for £1 - £2 a go depending on quality. 10 last me 18
mths - 2 years on average.

Not a flame, but note that conditions vary. A mate of mine
had 6 punctures on one day in the rain. He wasn't carrying 6
tubes. But he did have a patch kit.

Quoted message said:

My time is worth more than that, and I've never been happy
with repairs on narrow (23mm) tyres. I've seen them lift
off in the heat before and I don't want that happening
when I'm doing 50mph and braking hard!

Why would 23mm tyres be more prone to have a repair fail,
aside from the generally higher pressures?
--
"A kilt opens up new possibilities."
- Gary D. Schwartz in rec.backcountry

"Sandy Morton" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

In article <[email hidden]>, Arthur Clune

Quoted message said:

I'll probably get flamed for this, but just bin
the tube.

Happy to agree with you on this one. I can repair a
puncture in 5 minutes but I can replace a tube in under 2.

Quoted message said:

If you by tubes mail order in batches of 10 you can get
them for £1
- £2 a go depending on quality. 10 last me 18 mths - 2
years on average.

I use about 150 in an average summer - less when it's dry
and more when it's wet - and pay significantly less than
£1-00:-)

Where do you buy your tubes, if you don't mind me asking?