OKO Truck & Bus Tire SealantOKO Truck & Bus is a concentrated Heavy Goods Vehicle tyre sealant designed for On Road use in the tubeless tyres of Heavy Trucks, Semi Trailers, Coaches & Buses, and other on road vehicles over 5 tonnes that may travel at extended high speeds. It works perfectly with the high pressures used in these vehicles, unlike many tyre sealants. (Beware those that claim to have one product that suits all speeds and types of vehicle) It prevents punctures,