The Stan&';s No Tubes Tire Sealant is lightweight, reliable and provides self-sealing protection for tubeless and tubular tires. Just two ounces of Stan&';s in a converted standard tire or tubeless tire can repair punctures up to 1/4" almost instantly to keep you rolling. Longer-lasting Stan&';s Tire Sealant is formulated to stay liquid in tires with even thin casings for up to seven months. Arid conditions require more frequent monitoring of sealant levels, but anti-freezing agents in our special formula allow Stan&';s Tire Sealant to be used in temperatures as cold as -30Adeg F. One quart will convert up to 16 tires.