There are two kinds of sealant usage: always and just after a puncture. The emergency applicator like Pit Stop is for after a flat to seal, partially reinflate, and get you gong again. The regular sealant is like what is used in tubeless tires. You have to have removable valve cores to inject the tubeless tire sealant. That would be a better bet. But the Pit Stop worked for me once, but then failed me a couple of times. When there was a tear at the base of the valve stem, I don’t suppose anything would have help in those cases. Bottom line, the Pit Stop comes in a really small can that you can tape behind your seat post. Can’t hurt or give it a try. If you aren’t satisfied with it, you can alway inject sealant as a preventative.