A small quantity of the tyre sealant is installed before the puncture, it is then always on guard and permanently seals all safely repairable punctures, that’s 95% of today’s high speed punctures, "As They Happen". The repair cures within seconds using the ordinary road heat of the tyre. The repair lasts for the legal life of the tyre. There is no speed or distance restriction.
Typically, as the nail pushes through the tyre tread the rubber stretches and is pushed aside. Then, as the nail exits the tread, the air pressure forces some the sealant into the hole. The rubber closes up returning to it’s original position. The hole being now smaller than the nail diameter and typically very difficult to see, (remember how submerging in water often has to be used to locate air bubbles to find punctures).
It is the strength of the rubber closing up to it’s original position that securely holds the clot of tangled fibres (imagine the barbed fibres that cling together in velcro but smaller) and tiny particles of rubber in the sealant.
Tyre sealants are not a miracle cure for any kind of tyre damage. If the damage to the tyre has weakened it’s structure (as happens in a minority of cases) so that the tyre cannot safely hold the repair in place the sealant will not pretend to repair and then let go at high speed, instead, the sealant will bleed with the air. This is designed to aid a controlled deflation which could allow you to come to a safe stop somewhere out of danger. This condition is dependant on the effect of the damage on the structural strength of the tyre and not just the size of the hole.
The sealant coats the inner surface creating a sealed air chamber virtually eliminating air migration loss in normal usage. There is often no need to top up with air between services during the regular preventative maintenance checks as advised by your vehicle manufacturer . Your tyres now run at the correct pressure, do not overheat and run with less rolling resistance.
Less rolling resistance also means more miles per gallon. 30% of your fuel is used to overcome the rolling resistance of the tyres. Just 8psi under-inflation increases rolling resistance by 15%. Effectively running on tyres 10psi below the recommended level adds a cost equivalent to an extra 3p a litre of fuel.☆ [That was back in March 2006 - since then fuel prices have increased alarmingly - pump prices increased by 23% in 2009 alone] - add on the increases in recent years and it is costing you even more now if your tyres are not kept at the correct pressure! Use our sealant and get more miles for your money
Un-treated tyres lose air due to natural air migration resulting in tyres that are under inflated. Under inflated tyres have more rolling resistance and generate excess heat. Some heat in a tyre is desirable, but excess heat causes the tyre to wear out sooner and, as the tyre overheats, the rubber softens and is more easily penetrated by nails etc.
6% of all fatal motorway accidents in the UK are caused by under inflated tyres☆
Running 15psi under inflated lowers the speed at which the car will aquaplane on a wet surface by 10mph☆
Running under inflated can cause a build up of excess heat that can permanently weaken the tyre’s structure☆
Low pressure also reduces cornering capability.☆
"If we all drove with the correct tyre pressures we would contribute to reducing CO2 emissions by 5.5million tonnes per year."☆
We have the sealants to help keep your tyres at the correct pressure genuine top quality tyre sealants from the USA.
☆ source Michelin.
We Do Not recommend installing the product into low profile car tyres (low profile is 45 profile or less) - the profile is usually written as the middle number in the set of three large numbers and letters on the side wall of the tyre e.g. 225 / 45 / 15. This is because in some cases cars with low profile tyres have vibration problems. If you wish to install into low profile car tyres against our recommendation you must be aware that if persistent vibration occurs you would have to remove the tyres and wash out the product at your own cost.
Before installing tyre sealant tyres and wheels must be in
balance and free of internal contamination.
If the vehicle requires that the wheels be balanced, typically true of passenger and light goods vehicles capable of exceeding 50 miles per hour they should be balanced BEFORE installing tyre sealant. It is not possible to balance a wheel AFTER any kind of tyre sealant has been installed, this is because tyre balancing machines can not replicate normal road use spin speed which distributes the sealant evenly.
If there is an existing imbalance the centrifugal force of the imbalance can pull the product out of position. There will then be a larger imbalance which can become more noticeable as a vibration.
Contamination can prevent the product contacting the entire inner surface resulting in patchy coverage causing imbalance. It can take a long time for the product to break down contaminants and get to the tyre. If imbalance persists you would have to remove the tyres, wash out the product and correct the imbalance problem before re-installing, all at your own cost.
We do not know if the product will affect electronic air pressure sensors, to date we have not received any reports that it does but installation of the product is at your own risk.