I also am just using Stan's -- I haven't tried making my own yet. Stan's doesn't costdusty said:I mean who has made their own sealant. I'm curious whether Stans is a special innovative formula (in which case I'll try it) or just repackaged liquid latex or auto tire sealant. Still, good to hear the Stan's seems to be working for you HTail. As fall gets closer I'm dreading the goatheads (usually one flat every 1-2 long rides). The only measure I've taken so far is that when I put on some new tires I used the Specialized "Racing Thorn Resistant" tubes, which may be just marketing hype (they're thin and 175g). Really won't know 'till late August.