Revolutionary Puncture Repair Solution

Puncture Prevention

Punchure Safe are one of the largest manufacturers of puncture prevention treatments worldwide. They are the market leader because of the quality of their sealant with its ability to affect a permanent seal and also to withstand the hostile environment inside a tyre.

Permanently Seals

Applied “before the puncture occurs” to permanently seal punctures “as they happen”.

Reduces porosity and extends tyre life.

Tyres run cooler, so will last longer.


PunctureSafe is a revolutionary product that out-performings all others, with technology not found in other tyre sealants.
PunctureSafe is more than just a tyre sealant, it is a tyre safety system that is “outstanding at sealing punctures”.
It Works, and it works for the life of the tyre

Manufactured with FlexxaGel™ our most closely guarded trade secret


When a puncture occurs, the centrifugal forces of the rotating tyre, plus internal pressure and escaping air, forces the gel into the puncture and a permanent seal is created.

Exceptional inner tyre coverage

PunctureSafe manufacture 4 grades to cover every vehicle sector


High Performance
High Speed Grade


Heavy Duty
Medium Speed Grade


Extra Heavy Duty
Low Speed Grade


Light Duty
Cycle Grade

High Performance Grade


Heavy Duty Grade


Extra Heavy Duty Grade


Cycle Grade


More Demo Videos

The Research & Development team at PunctureSafe UK examined in great detail the composition of tyres during the early stages to ensure the different grades worked in complete harmony with any tyre.

Britain is the workshop of the world for new inventions, we proudly earned that reputation during the Industrial Revolution. PunctureSafe is a Unique Chemistry, be in your Element with it!

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Frequently Asked Questions

What is Puncture Safe?

A tyre life extender/conditioner & permanent puncture prevention treatment
PunctureSafe is a special blend of polymers which coats and clings to the inner tyre. PunctureSafe is a “permanent” puncture prevention treatment and tyre life extender/conditioner. Previously available products (and most current ones) have simply “fallen apart” at speeds of 40 mph and over, because they were manufactured for the construction industries slow vehicles, but eventually made their way into the high-speed markets creating problems. PunctureSafe is not a get you home product, it is applied before the puncture occurs, and permanently seals punctures as they happen. Once installed, PunctureSafe not only seals punctures, it conditions the inner casing, preventing porosity leaks caused by tiny holes and cracks. In other words after installing Puncturesafe the tyres maintain correct air pressure and the need to regularly top up with air is virtually eliminated, and with correctly inflated tyres you get better fuel economy, your tyres also run cooler eliminating that problem of heat build-up. Tyres treated with PunctureSafe last considerably longer, and cooler tyres are also less susceptible to punctures. PunctureSafe is water based for easy clean out if ever you need to do this and is installed in minutes through the tyre valve with very little air loss and without removing any wheels.

What makes PunctureSafe different to tyre sealants that do not work?

Technology! Sealants have caused many problems that we at PunctureSafe have addressed. Using a highly evolved mixture of polymers, we have devised a product that is more than capable of working in harmony with today’s modern breed of vehicles. We use advanced chemistry in our process that bonds the molecules of the sealant together at speeds up to 150mph. Previously available products, and most current ones, have simply “fallen apart” at around 55-65mph.

Does Performance and abilities diminish with speed, distance or time

PunctureSafe does not have any of the failings that previous and many present products have. Apart from drying and balling up in the tyre, the biggest failings of traditional tyre sealants in a high speed tyre, was the inability to seal small holes, but the ability to seal a large dangerous hole or cut, because they contained large chunks of chopped up rubber. Whereas PunctureSafe contains only tiny strands of coarse surface synthetic fibres that are stronger than steel when they interlock tightly together, but will only positively seal small holes caused by puncturing objects up to 6mm in diameter, but only in a hole that is in the tread area of the tyre, and that is shrinking in size because there is no cord damage (rubber recovery), which is 95% of today’s punctures in high speed vehicles. Anything bigger, or in the sidewall, with or without cord damage, and the PunctureSafe fibres just slowly bleed through the hole, giving a controlled deflation, and usually with a halt or abrupt slow down in air pressure loss at the lower pressures of 10 to 15 psi (depending on cord damage) which prevents damaged rims, and helps the driver maintain control possibly enabling continuation of the journey to remove the vehicle from a possibly dangerous location.

Through our extensive research and development, our proprietary formulation has evolved far beyond that which is commonly known as a tyre sealant – PunctureSafe is a tyre safety system outstanding at permanently sealing punctures and a true tyre life extender. PunctureSafe converts any pneumatic tyre into a self-sealing tyre that will maintain air pressure. Puncturesafe has the ability to coat more of the inner surface of a tyre and rim without succumbing to shear and stress associated with centrifugal force that is created within a high speed rotating tyre. PunctureSafe’s attributes are unparalleled in the history of the pneumatic tyre.

The PunctureSafe Research & Development Team developed an unrivalled proprietary process that has yet to be duplicated.

How does it works?

Once PunctureSafe has been installed, it lies dormant at the bottom of the tyre until the vehicle is first driven. Once driven a minimum of three to five miles, PunctureSafe disperses throughout the inner tyre and forms a coating on the inner surface of the tyre assembly. In order to get sidewall coverage it takes 1500+ miles to activate the FlexxaGel to adhere to more of the inner tyre. The flexing of the tyre and the normal heat build-up allows PunctureSafe to seek out and eliminate common air loss problems (referred to as porosity, air migration and bead leaks). Puncturesafe then transforms the tyre assembly into a sealed air chamber, capable of maintaining proper air pressure. Thereafter, PunctureSafe conditions the rubber in order to retard dry rot and aging (hardening) of the casing. One treatment will provide additional longevity and cooler running tyres for the legal tread life of the tyre.

The advanced technological sealing capabilities of PunctureSafe stand on guard to seal punctures as they happen. When a tyre is punctured, PunctureSafe coats the surface of the penetrating object, thus preventing air loss.

When the puncturing object is removed, the rubber recovers and the wound immediately closes, escaping air siphons PunctureSafe into the puncture. The fibres entwine to create a clot that prevents any additional air from escaping. As the rubber recovers, the puncture closes and the strength of the tyre holds the seal in place. The specialised polymers and fibres form the seal, thereby producing an airtight seal. The small amount of PunctureSafe that penetrates through the puncture, past the belts and out through the tread area is referred to as a seal. Once exposed to the atmosphere, the seal begins a systematic cure (another proprietary attribute from the PunctureSafe R&D Team). As the seal cures, it makes a positive secure seal that is impervious to water, which totally protects the belts and inner casing from outside contaminants and corrosion.

PunctureSafe’s proprietary formulation is one of our closely guarded secrets, which allows PunctureSafe to withstand heat and the shear forces created within a rotating tyre. The thixotropic polymers stretches and recovers under mild to severe exposure of the adverse forces and continuously clings to the inner tyre. The ability to coat the inner surface against adverse conditions and centrifugal force is the reason that PunctureSafe will not adversely affect a balanced tyre assembly and does not lose the ability to provide protection for the tread life of the tyre.

PunctureSafe’s abilities & performance is not diminished with speed, distance or time.

What is it's sealing capabilities?

If the tyre’s integrity is weakened to a point where the tyre and casing are unsafe, PunctureSafe is designed to bleed and slowly release air pressure in a controlled way if the puncturing object has severely damaged the inner structure.

PunctureSafe will not hide or mask a dangerous puncture regardless of how small the damage may be. If the integrity of the casing has been breached and safety becomes an issue PunctureSafe is designed to allow air to escape in a controlled manner.

Will it cure or harden inside the tyre?

People often ask, “If PunctureSafe cures from exposure to outside air, then why doesn’t it cure by the air inside of the tyre?” PunctureSafe transforms the tyre and rim into a sealed air chamber. As the vehicle is driven and the temperature of the tyre increases, a portion of the liquid base vaporises within the tyre assembly’s inner air cavity, as the tyre cools, the moisture condensates back into the formula. The inside air actually becomes part of the system. The sealed air chamber prevents outside air from entering or inside air from escaping. Constant air pressure maintenance is not required.

Positive secure seal

When a tyre is punctured, PunctureSafe is forced against and around the puncturing object by the inner air pressure, thereby preventing air from escaping. If the puncturing object is thrown out of the tyre by centrifugal force or is pulled out, the inside air forces PunctureSafe into the puncture and immediately stops air loss. Special fibres entwine, forming a seal, then as the rubber recovers, aided by the tyre flexing as it rotates, the inner air pressure forces the seal well into and through the puncture. Once PunctureSafe is exposed to the outside air, a curing process begins. The cured seal extends well into the puncture, thus providing a seal that is impervious to water (rain, snow, mud, etc.). As this seal cures, it is transposed into a permanent rubberised seal, protecting the inner casing and steel belts against contaminants entering the puncture.

What is the 80/20 syndrome

The seal is permanent because of two very important attributes of PunctureSafe:-

A/…there is no shrinkage of the drying polymer in the puncture because the gel is 80% polymer and only 20% liquid because we do not use cheap ingredients that bind huge amounts of water. It is common for similar products to be the other way round with 20% polymer and 80% liquid.

B/…The gel dries and cures to a firm, flexible and rubber consistency which means the seal will flex with the puncture causing no air loss over time.

It is a fact that any viscous wet compound containing fillers such as fibres and rubber particles will initially seal a puncture whilst in the wet state because wet compounds will flex with the tyre in the puncture, but the problems arise in many of these “so called” similar products when the liquid escapes out of the puncture into the atmosphere causing the compound in the puncture to dry back to the original ingredients. When dried out these “so called” similar products will vary in looks and texture because of the vast difference with ingredients used in these tyre sealants to such as:- Biscuit, Plasticine, Putty, Paper, Crystalline, Flour, Sticky pritstick, Bluetack, cement, clay etc. The descriptions and looks of many of these dried out products are neverending, but it is a fact that in the wet state these gloopy tyre sealants all look very similar, except in colour, but that is where the similarity ends. Many of these compounds that have usually been formulated by people without any knowledge of chemistry whatsoever, once dried out in the puncture will eventually fail, resulting in a flat tyre, sometimes within days or just weeks after the initial puncture.

The eight images directly below are of PunctureSafe and six “so called” similar products that have been allowed to dry out in a laboratory oven at 50 degrees C for 24 hours. When fully dry PunctureSafe has very little shrinkage and is flexible and firm which is the attributes required of a dried out tyre sealant in the puncture to permanently seal the puncture, and especially in the low speed market were punctures can be caused by puncturing objects up to 30 mm in diameter. It is our trademarked secret ingredient “FlexxaGel™” that gives PunctureSafe so many of its quality attributes.

Will PunctureSafe cause a balance problem?

The law of physics are quite precise, especially when it comes to liquids in a centrifuge, they will be forced in the direction of the forces, which in a moving tyre is in the opposite direction from the wheel rim. A tyre on a moving vehicle is a centrifuge and tyre sealants inside a tyre will obey these laws and be forced outwards to the highest point which is the centre of the crown area as shown in diagram A below. As a vehicle gathers speed, tyre sealants form a narrow band in the centre of the crown area of the tyre and the width of this band is dependant on the vehicles speed. At only 2 miles per hour that band will be narrow covering approximately only 70% of the crown area, but as the vehicles speed increases to normal driving speeds of 20 to 60 mph that band narrows significantly as the centrifugal forces increase. With these higher speeds a tyre sealant will begin to pile up in a bulky mass as extreme forces come into effect as shown by the arrows in diagram A. At these high speeds and with these conditions balance problems are prevalent. Sideways movement of the vehicle will temporarily cause a little sealant to creep across the shoulder area, but forward movement will immediately bring it back again. Also because of the low crown coverage, even at speeds of only 2 mph, there is no protection against punctures in the shoulder region of the tyre as shown in the grey shaded area marked S in diagram A.

PunctureSafe covers more of the the inner tyre “at all speeds”, yes from 2 kph to 250 kph – better coverage, as shown in diagram B below and that gets better the more miles the vehicle covers. As the vehicles speed increases, PunctureSafe’s thixotropic polymer gel stretches over the inner tyre giving good coverage with a very thin layer no thicker than 2 or 3mm, and that is the reason balance problems do not occur with PunctureSafe. (The PunctureSafe gel will relax in a stationary vehicle covering less of the inner tyre) We at PunctureSafe UK have managed to achieve this in a process using very advanced chemistry not normally found in any other tyre sealant. Our proprietary process which gives PunctureSafe these attributes and other beneficial properties is our most closely guarded secret which no other manufacturer has yet managed to duplicate. You need very sophisticated equipment to achieve this level of chemistry which we have had built entirely to our specification. Large rubber particles of 1 mm in size normally found in tyre sealants are also a big cause of balance problems. We granulate our own rubber particles right down to between .2mm and .4mm for inclusion in our high speed grades .

Key Benefits at a Glance

  • Will seal punctures permanently and for the life of the tyre.
  • Will give you a controlled deflation if the integrity of the tyre has been compromised.
  • Will cover more of the inner tyre “at high speeds” to prevent porosity in the tyre and stop bead leaks – Requires advanced chemistry.
  • Will not pile up in a narrow band down the centre of the crown area owing to centrifugal forces – This is a common problem with many sealants and the advanced chemistry required to prevent this is our closely guarded secret.
  • Will seal punctures over more of the crown area” owing to PunctureSafe’s “better inner tyre coverage.”
  • Will not seal punctures in the thin & flexing sidewall, but will give a tell-tale sign with a controlled and slow deflation.
  • Will help extend tyre life because of a much cooler inner tyre. Heat build-up is removed by conduction away from the inner tread area to the rim, because of better inner tyre coverage. Plus, cold tyres are less susceptible to punctures. (Rubber is a poor conductor of heat).
  • Will help extend tyre life as better coverage over the “inner tyre” eliminates porosity giving optimised tyre pressures,with the added benefit of improved fuel economy and safer vehicle handling.
  • Will be manufactured using heat” in an intricate process with over 15 polymers to give a solids content of 80% but only 20% liquid, rather than 80% liquid and only 20% solids which is common with sealants mixed cold with as little as one or two polymers – You cannot achieve the attributes you find in PunctureSafe with only one or two polymers or without applying heat and the principles of chemistry during the manufacturing process.
  • Will cure in the puncture to a firm and flexible rubbery plug, as opposed to something resembling sticky modeling clay or hard and common with tyre sealants formulated with just one or two polymers. These simple sealants initially seal punctures, but then fail as the plug dries and shrinks because of heat. This is because simple tyre sealants with a high water content that can bind fibre and rubber particles whilst still in their liquid state, initially seals a puncture in a tyre but fail as the tyre sealant plug dries and shrinks.
  • Will be water based for quick and easy clean out from the tyre.
  • Will definitely not vapourise or steam in a warm tyre causing the tyre pressure to increase to a dangerous level – Requires advanced chemistry to achieve a complex azeotropic liquid base that increases the boiling point of liquids to prevent steaming. Similarly, when water binds the polymer chains via hydrogen bonding it increases the surface area, which causes the water to evaporate out of a polymer at the slightest increase in temperature. Our unique chemistry prevents this from happening.
  • Will not over any length of time, break down or dry up inside a high speed tyre – Requires advanced chemistry applied with heat to achieve this.
  • Will not over time lose any viscosity in the tyre.
  • When heat and stress is applied to water based polymers inside a high speed tyre, the polymers rapidly thin within a few thousand miles in a process called hydrolysis (decomposition of the polymer chains owing to a chemical reaction with water, during which molecules of water are split into hydrogen cations)
  • Our unique chemistry prevents this from happening.
  • Will not ball up inside the tyre. Owing to the large difference in specific density between the heavy liquid polymer and the significantly lighter fibre and rubber particle solids, centrifugal force normally cause these lighter particles to be forced in a reverse direction and collect on the inner surface of the polymer in clumps. Our unique chemistry prevents this from happening.
  • Will not run to the bottom of the tyre in a stationary vehicle.
  • Will be thermally stable at speeds of up to 250kph – Very rare.
  • Will not rust or corrode rims.
  • Will condition the inner tyre.
  • Will not void tyre manufacturers’ warranties.
  • Will not contain Ethylene Glycol, an extremely toxic anti-freeze.
  • Will be non toxic – A result of years of Research & Development.
  • Will always comply with Health and Safety regulations in Europe and the UK.