innertubes...Grrrrr!

Been chatting to a friend who runs a bike shop and he has noted that there are more and more butyl tubes
that can't be repaired as the patch does not stick no matter which puncture repair kit it is cheap or quality.

So he as asked about and manufacturers are putting plastic into the production line to lower production
costs though this is showing as many are failing and can't be repaired! Time to look for old stock tubes.

This may explain why a patch is not vulcanizing on the tube as the rubber has plastic in it :facepalm:


ian.
 
An odd thought -

this jumped into my mind just now - do i remember seeing my father burning a tube with a lighter before he patched it????????? Have i made that up? This would have been in the seventies. Any ideas why or is my dodgy memory playing trick on me in the heat!

Does that make sense?

Richard
 
I thought vulcanizing was to do with heating up rubber with sulphur?

Butyl tubes have been standard since the 70's IIRC, there were lots of arguments about them back then with latex having been king for so long.

Shaun
 
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