Depending on humidity and temps, Orange Seal reckons you'll get 2-6 months before you'll need to top off levels again. The tradeoff of this sealant is it isn't quite able to seal larger cuts and punctures as well or as quickly as the standard version. The real benefit of this particular blend though is its ability to stay liquefied and able to prevent flats in temperatures down to -25deg celsius. Calling all fat bikers!