Seals instantly
OKO reacts with the centrifugal force of the rotating tyre, solidifying from liquid to elastic solid and sealing the hole with minimal air loss.
The science
Control the flow
Inside every bottle is a balanced mix of fibres, binders and suspension gel that rushes to seal a hole the moment it appears — powered by the movement of the wheel itself.
Punctures don't wait — and neither do we
When a puncture opens, the centrifugal force of the rotating tyre drives OKO into the hole. There it changes state — from a liquid into an elastic but extremely strong solid — sealing the wound from the inside with minimal air loss.
It is a chemical-mechanical reaction powered by movement, pressure and 48 years of hands-on development. The driver does nothing. Often the driver notices nothing.
OKO Technology
A sealant is only as good as the way it gets into the tyre. The cap, the 150ml injector and the drum pump are OKO's own engineering, designed so every size, from a 1.25L bottle to a 25L drum, goes in cleanly and in the right amount.
Applicator, closure and valve-core tool in one piece; a precise injector for the 5L can; a drum pump for 25L, so nothing has to be deflated to be filled.
The cap is the tool
Every OKO bottle arrives with the OKO Cap - the applicator, the valve-core tool and the closure in one piece. Nothing to lose, nothing else to buy.
- Rotate the cap 90 degrees to unlock it
- Grip and pull up - the straw releases from the bottle
- Remove the valve core with the built-in tool. Schrader and Presta both fit
- Fit the straw to the valve and squeeze in the dose
- Reinstall the valve core, reinflate and go
What that gives you
Superior seal strength
Independent tests show OKO's seal is 1.6 times stronger than a traditional vulcanised repair and 7 times stronger than a plug.
Stable, long-lasting
Unlike sealants that need shaking or rely on latex, OKO's water-based anti-freeze formulation stays stable and performs reliably over time.
Custom formulations
Tailored to tyre type, terrain, pressure and vehicle weight - off-road, high-speed or heavy-load.
Extends tyre life
Sealing the tread cuts air loss, and the fluid draws heat away from it - extending tyre life by up to 20%.
Corrosion protection
OKO Lifelong extends industrial tyre life by 30%, coats rims against corrosion and highlights UV-sensitive leaks.
Inside the tyre
A safety net you never see
Once OKO goes in, it stays alert — sitting quietly inside the tyre, reacting the instant trouble strikes and sealing from the inside out before you notice you had a problem.
It is not magic. It is physics, fibre technology and 48 years of field testing.
Not off the shelf
Tuned to what you drive
Thicker fibres, finer flow rates, performance tuned by temperature and tyre pressure. Every blend is matched to what you drive, where you drive and what you are up against — whether that is hauling stone in 60-tonne dumpers or tackling the Alps on two wheels.
See how much sealant your tyre needs
The calculator gives the exact dose for your tyre size, and the packs to order with it.