if you use it, be sure to read the can. a guy I know calls me telling me he is stranded on his bicycle with a flat. he went to the gas station, bought a big can of slime and filled his bike tire up. used the whole can. after it went down again he filled it from the air hose and it went down again. he didn't spin the wheel after filling up. so the full can of slime was at the bottom of the tire, while I assume the hole was at the top.