Originally Posted by PaulH
You are talking about a product called "Fix A Flat". It is a pressurized can containing sealant and a compressed gas. It works well for small holes in low pressure bike tires and fits in your bottle cage. If you have high pressure tires it will not work at all.
paul
Fix-a-flat also contains a solvent which dissolves some of the rubber in the tire to seal the hole. Unfortunately, with a bicycle tube, the rubber in the inner tube is much thinner and therefore more likely to dissolve completely
leaving you with not only a flat but with a sticky gummy mess where you tube used to be.
CO2 works better.
Or a pump.
Pump first.