Originally Posted by cyccommute
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.
Fix-a-Flat has a bicycle version in a smaller orange can. The auto version is in a yellow can.