Seals instantly
The reaction begins the moment the puncture opens, while the wheel is still turning.
About OKO
The original tyre sealant
It started in 1978 with a British farmer and a leaking tractor tyre. 48 years later, OKO is still made in Britain, still owned by the people who started it, and still the sealant others copy.
Most tyre sealants are bought in and bottled. Ours is engineered — formulated, tested and made in our own UK facility, then tuned to the weight, pressure, wall thickness and terrain of the tyre it goes into.
That first formula was born in a field and mixed with a practical, no-nonsense mindset. Over the decades we have refined that core technology to handle everything from motorcycles to military trucks. It is the backbone of the range, and the reason we can build a bespoke sealant when the standard one will not do.
The evidence
1978The year OKO launched in the UK
35+Countries where OKO is used
22%Lower tyre carbon footprint, verified by Intertek
1.6×Stronger seal than a vulcanised repair
Seal strength independently tested against traditional vulcanised repairs; 7× stronger than a plug repair.
Trusted worldwide
Where it matters most
For 48 years OKO has earned the trust of farmers, fleet managers and heavy industry operators across more than 35 countries — from British backroads to African mines and South American farmland.
The proven formula
Permanent strength
1.6× stronger than a vulcanised repair, 7× stronger than a plug.
Stable in the bottle
Water-based and anti-freeze. No shaking, no settling, no latex to deteriorate.
Customisable
Tuned to tyre type, terrain, pressure and vehicle weight.
Extends tyre life
Up to 20% more life by cutting air loss and drawing heat from the tread.
Stops corrosion
Coats the rim against corrosion and makes UV-sensitive leaks visible.
How much sealant does your tyre need?
Choose your formula and tyre size, and the calculator gives the exact dose per tyre and the packs to order.