Please Note !!

The answers given to the questions below relate only to OKO Puncture Free Tyre Sealant, manufactured solely and exclusively by The OKO Group, Universal OKO Limited and OKO South Africa (AMI Supplies Pty Limited).
The OKO Group does not wish to infer that these answers are suitable or applicable to any other tyre sealant nor even an Aerosol Temporary repair tyre sealant. The OKO Group can vouch only for its own products. OKO Puncture Free Tyre Sealant is produced as a result of major investment by The OKO Group using extensive amounts of management time and money, in respect of Research & Development. Furthermore, unlike the majority of competitors, The OKO Group has subjected its OKO Puncture Free Tyre sealant to rigorous independent institutional tests.

Thus, whereas The OKO Group can warranty its own Tyre sealant products it takes no responsibility for other tyre sealant products nor those manufacturers who make claims that are unsubstantiated, and who have not subjected their products to rigorous tests carried out by genuine third party institutional product tests.

Answer. Oko have being manufacturing tyre sealants for 28 years

Q2. Can OKO Puncture Free be installed into any tyre?

Answer: Yes, OKO Puncture Free can be applied to any Pneumatic tyre.

Q3. Is OKO Puncture Free safe and legal to install in my tyres?

Answer: Safe? = Yes. --- Legal? = Yes.

Q4. Does OKO Puncture Free affect the tyre life or performance?

Answer: Regarding performance, not adversely. OKO does not affect tyre structures or rubber. Regarding the life of the tyre, there is a possibility that the tyre life will be extended, tests are underway to prove this.

Q5. Will OKO Puncture Free corrode my wheels?

Answer: No. There are corrosion inhibitors in the OKO Puncture Free formulation. If any residue of OKO Puncture Free is touching the inner rim, it can be washed off when a tyre is changed, if the owner so desires.

Q6. What speed is OKO Puncture Free speed-rated to?

Answer: The OKO On Road Puncture Free product has been tested at various speeds in a variety of On Road vehicles. On occasions, controlled tests have averaged between 100 m.p.h. and 120 m.p.h. (160 k.p.h. to 192 k.p.h). The product in Motorcycles was tested up to 185 m.p.h. (300 k.p.h).

Q7. When the OKO Puncture Free liquid is inside the tyre, does it react with the air inside the tyre and go hard?

Answer: No. The product is designed to remain liquid inside the tyre. The product will seal a hole under pressure and then dry instantly, but it will not react with the air inside the tyre.

Q8. Are there any harmful ingredients in OKO Puncture Free?

Answer: The product is no more harmful than in the use of every day vehicle anti-freeze.

Q9. In what range of temperatures does OKO Puncture Free Operate within?

Answer: From –45 degrees C. to above + 45 degrees C. OKO Puncture Free has been tested on fast moving truck tyres. Punctures suffered early during this test (within a few thousand kilometres), remained sealed throughout the test. The holes remained blocked with the OKO permanent seal. After 110,000 kilometres, the product remained effective sealing further punctures. At this stage, the OKO Puncture Free remained in position as designed, coating and protecting the inner tread area of the tyres. During this test, it is probable that the Truck tyres exceeded temperatures above 45 Centigrade.

Q10. Does OKO Puncture Free cause wheel imbalance?

Answer: OKO Puncture Free will not cause wheel imbalance if the product is dosed correctly. ANY temptation to apply more than the recommended dose must be strictly resisted. When applying the On Road OKO product to a Motorcycle or car the instructions must be strictly adhered to and the recommended quantity only must be inserted. Having applied the OKO, these vehicles must be driven carefully and slowly for at least 30 kilometres (approx 20 miles). During this period, the OKO will line the inner tread area of the tyre. Once this inner coat has been formed, there will be no wheel imbalance. Any minor quantity acting as a reservoir is not sufficient to swirl around a tyre, causing a wheel vibration.

Q11. What is the advisable distance to drive the vehicle at a reduced speed having fitted OKO Puncture Free?

Answer: Miles: 20 to 25. Kilometres: 30 to 40. See Question 8. In some cases, if wheel vibration is experienced at certain speeds, then the vehicle must be driven carefully until such vibration disappears.

Q12. How many holes will OKO Puncture Free seal using one application?

Answer: OKO Puncture Free Tyre Sealant is designed to seal many holes. A small amount of OKO is used to seal a single hole. During Military tests with the British Army, a minimum of 30 holes were sealed in the tyres of a Land Rover.

Q13. At what pressure does OKO Puncture Free seal up to?

Answer: Up to any Truck tyre in use. In other words, OKO Puncture Seal will function correctly from a low tyre pressure even up to 130 P.s.i. (9.0 bar).

Q14. How often does OKO Puncture Free need to be replaced inside a tyre?

Answer: Not at all. OKO Puncture Free is designed to last the legal life of a tyre.

Q15. Up to what size puncture will OKO Puncture Free seal?

Answer: In tests, OKO Puncture Free has sealed holes caused by puncturing objects with a diameter of 9mm. In fact, it has sealed larger. However, the Product will function at 8mm and 9mm.

Q16. Does OKO Puncture Free cause any difficulty or problem if it becomes necessary to perform a conventional vulcanised repair?

Answer: The product can be removed from the inside of the tyre by washing it out. The best method is by using a hose. OKO Puncture Free does not damage the tyre. Once washed out, the tyre can be dried and a vulcanised repair applied if considered necessary.

Q17. What happens to the OKO liquid in a tyre if a person is on holiday for two weeks and leaves the vehicle in an garage for this period? Does the vehicle need to be driven again at reduced speeds?

Answer: No. Once the OKO Puncture Free has coated the inner tyre the majority of the product will remain as a coating.

Q18. What are un-ballasted pneumatic tyres?

Answer: Un-ballasted pneumatic tyres are tyres without water. Some rear Tractor tyres are ballasted. On occasions, Farmers put water inside the rear Tractor tyre to weigh down the vehicle. In some countries, farmers weigh down a tyre with weights. Ballasting with OKO would be preferable to water, because at least the puncture problem would be eliminated.

Q19. Will the OKO Puncture Free stain my clothes?

Answer: If OKO splashes onto the clothes, it can be wiped off. OR it can be allowed to dry and then brushed off. Whichever alternative is chosen it is likely that some OKO residue will remain on the clothes. Therefore, importantly, contact with clothing should be avoided.OKO Puncture Free should be handled with care and applied with care. Take precautions and ensure that OKO Puncture Free does not spill onto clothing.

Q20. Does OKO Puncture Free seal static punctures?

Answer: The subject of “static puncture” should be avoided. OKO Puncture Free is designed to PREVENT the deflated tyre because it is applied to the tyre BEFORE a puncture happens.

a. The “ Static puncture” situation is an “After the event” occurrence.
OKO Puncture Free can be applied into a deflated tyre at rest. Then the tyre can be inflated, and driven on. The OKO product may seal an existing hole in such circumstances especially if the hole does not exceed 8mm in diameter.
There are matters that need to be considered in such circumstances:-

i. will the driver have examined the tyre properly?
Is the hole near the side-wall? - and - will the driver know?
Has secondary damage or structural damage occurred?

BY USING OKO PUNCTURE FREE, THE PUNCTURE / FLAT TYRE WILL BE AVOIDED IN THE FIRST PLACE. THERE WILL BE NO FLAT TYRE AND THEREFORE NO STRUCTURAL DAMAGE. (Thus, it combats the vast majority of Puncture situations; therefore OKO should not be claiming to repair a “Static puncture”).
OKO Group should not attempt to enter a market where it is onto a “hiding to nothing”. Nor should anyone associated with The OKO Group undermine the superiority of the technological design of OKO Puncture Free; nor try and join the “Temporary Repair sealants” argument because Aerosol Temporary Repair Sealants can be considered “potentially dangerous” products. Temporary Repair tyre sealants mask structural damage, gum up the tyre, normally ruin the tyre, and are inconsistent in their effectiveness.

OKO Puncture Free will not be diverted from its main market focus, nor from the benefits and advantages given to the consumer, nor undermine its real design and efficacious advantages.

OKO Puncture Free should not be used to combat “Static Punctures” as defined above in Question 19.

Q21. Will OKO Puncture Free swill inside the tyre and affect the valve stem causing a misreading of the tyre pressure?

Answer: When applying the OKO product, some residue may remain inside the valve stem. This should be cleared by using an air-line as per the instructions. OKO Puncture Free Tyre sealant coats the inside of the tyre. It will not travel back up the valve stem; after all there is no air being forced via the valve stem through to the outside environment.

Q22. Why does the OKO product fail to block a valve stem perceiving the valve stem to be a hole when the tyre is deflated?

Answer: When a tyre is deflated for any reason (by an individual), it is virtually guaranteed that the vehicle is standing still. When the tyre is motionless the OKO remains coating the inside tread area of the tyre. It does not travel towards the valve stem.

Q23. Is there a risk of suffering a puncture without knowing it? Will this mean a lot more tyre inspections?

Answer: There is a risk in any circumstance. Examine and consider the risks without using OKO Puncture Free.
In normal circumstances:
Although tyre pressures and the tyres themselves should be examined daily, it is very doubtful whether the average motorist does so. Most drivers cannot be bothered. Nor do most motorists consider too deeply that the only material between themselves / their vehicle and the road surface are the tyres. Yet many motorists drive at speed. So, the first major risk is the behaviour of the driver, and the second risk is the state of the tyres, and the third risk is the adequacy of the tyre pressures.
Under normal circumstances, there is a fourth risk. The fourth is the risk of suffering a puncture and losing control of the vehicle. If a puncture is suffered, but the vehicle is controlled, there is the additional (fifth) risk of driving upon a tyre in a run flat situation, thus causing further damage (structural) to the punctured tyre.

With the Use Of OKO Puncture Free Tyre Sealant:
Using OKO Puncture Free is unlikely to change the behaviour of the driver. By using OKO Puncture Free Tyre Sealant, the driver will receive some educational reminders from the instructions of, that they should examine their tyres daily. This will not guarantee a change in behaviour, but OKO instructions could prove to be a useful reminder in respect of safety on the road.

By using OKO Puncture Free Tyre Sealant, the fourth risk and the fifth risk are avoided and averted.
Once the OKO seal has been made, it will remain sealed. Thus, the user has avoided the possibility of losing control of a vehicle at speed, and running on a punctured tyre, causing “run flat” damage.
Of course whether OKO Puncture Free Tyre sealant is used or not, the driver STILL has the responsibility (to himself) to examine the tyres and the tyre pressures.
All DRIVERS need to take a balanced view. They need to consider OKO Puncture Free Tyre Sealant:
The security and protection given;
Stopping a puncture whilst driving perhaps at speed;
Avoiding run flat damage (that often causes structural damage);
Minimal puncture risk; Not being stranded alone at the roadside;
Probable extended tyre life;
These BENEFITS need to be weighed against NORMAL driving risks without the use of OKO Puncture Free.

Q24. Can a number of punctures weaken the Tyre structures?

Answer: Tyre structures can be weakened by side-wall damage and Run flat damage;
OKO Puncture Free will not seal side-wall holes. For run flat damage (refer to previous question).

Q25. What does a driver do if a tyre is inspected and a nail is seen in the tread area of the tyre.

Answer: According to UK Forensic studies, a nail can penetrate a tyre and remain there for between 60 and 180 miles. (96 to 290 kilometres). Furthermore, a nail is likely to eject itself after this period.

If OKO Puncture Free Tyre Sealant is inside the tyre, and a nail is seen in the tread area, the driver can pull out the nail and drive immediately. This will affect an OKO seal. If the nail ejects itself, the OKO Puncture Free will cause an instant seal as normal.