OKO was the originator of modern-day preventative puncture sealants. OKO Group is the only genuine manufacturer of true OKO tyre sealant: beware of inferior imitators who sometimes try to use our name or steal our videos and data. Founded in 1978, we have tested and developed our products ever since into a comprehensive range of tailored OKO tyre sealants that seal punctures the moment that they happen, and make tyres last on average 20% longer, in all the different types of vehicle out there. If anyone tells you their sealant works properly in all vehicles - they don't possess the technology or know-how. Manufactured in the UK with ISO 9001 Quality, ISO 14001 Environmental, and ISO 45001 Health & Safety certification, evaluated and confirmed as being carbon negative (we save more carbon than we generate) and developed with the aid of international testing institutions, using the most advanced chemicals from the UK, US and Germany, OKO now has 'the World's Favourite Sealants', being represented by distributors in over 80 countries - and growing. We continue to seek new, compatible companies to work with - we are especially seeking regional distributors in the USA (both in 4-wheel and bicycle sectors) and in India. We have specific sealants for: Regular bicycles Mountain bikes Tubeless and racing bikes On road motorcycles, mopeds & scooters Off road dirt bikes for enduro, trial, motocross Quads and ATVs for racing and for regular use Regular cars, 4x4s, pick-ups, trucks, caravans, horse & boat trailers On road trucks, semi trailers, buses & coaches Compressor/sealant kit for car tyre puncture repair Mobility vehicles Off road horticulture, golf courses, agriculture, forestry, construction Extra heavy duty off road vehicles in mining, quarrying, waste management and other very rough conditions