Stans NoTubes Tubeless Tire Sealant – 32oz. Stans NoTubes Sealant is a thin low viscosity liquid that coats the tire interior and seals punctures quickly. Two ounces of Stans in a tubeless tire can repair punctures up to 1/4″ to keep you rolling. Stans Tire Sealant is formulated to stay liquid in tires for up to seven months. Arid conditions require more frequent monitoring of sealant levels but anti-freezing agents in our special formula allow Stans Tire Sealant to be used in temperatures as cold as -30 F. One quart can convert up to 16 tires.