Just two ounces of Stan's in a converted standard tyre or tubeless tyre can repair punctures up to 1/4 almost instantly to keep you rolling. Longer-lasting Stan's Tyre Sealant is formulated to stay liquid in tyres 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 Tyre Sealant to be used in temperatures as cold as -20° F.- First choice of riders around the world for tubeless conversion and flat prevention- Seals punctures up to 1/4" (6.5mm) quickly- Remains liquid inside tyres for 2-7 months for long-lasting protection- Premium low-viscosity formula resists freezing to work in environments as cold as -20° F (-28° C)- Natural materials, safe for the environment- Can be injected through valve stems with removable cores compatible with tubes and tubular tyresNote: This product is not suitable for part numbers or colours.