Air-Seal Products Ltd

Air-Seal Products Ltd

Air-Seal Products Ltd

Air-Seal Products offer a unique range of tyre sealants that are able to treat machinery and vehicles for both on and off road environments. From wheelbarrows to large dumpers we treat them all, whilst improving or maintaining the profitability for tyre users who continually face major cost problems. The company was established in 2000 as a privately owned family business. Located in Somerset it is represented at several major trade shows in the U.K. and around the world each year. This website provides considerable detail on the range of our pre-puncture tyre sealants which provide immediate protection to the tread area from punctures up to 30mm (1¼ inches). Our tyre sealants have been successfully used in many types of vehicle; for example, tyres for quarrying plant right down to the essential wheelbarrow.

Company details

Unit 8E Greenham Business Park, Greenham , Wellington , Somerset TA21 0LR United Kingdom
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Business Type:
Industry Type:
Manufacturing, Other
Market Focus:
Globally (various continents)
Year Founded:

This company also provides solutions for other industrial applications.
Please, visit the following links for more info:

We are confident that our tyre sealant range will support major cost savings for all tyre users:

  1. We use a technology which is not matched by any other tyre sealant available anywhere and can prevent punctures in tyre treads of up to 30mm (1¼ inches) in 95% of tubeless tyres and up to 75% in tubed tyres.
  2. Considerable cost reductions can be achieved from less idle labour and for tyre service contracts from vehicle downtime.
  3. From eliminating tyre under inflation and slow air leaks. We can increase tyre life by up to 20% and reduce fuel costs.

All of our products are supported by our first class technical service with our extensive experience of solving on-site puncture problems.

Our tyre sealants are now widely used worldwide by major companies for their vehicle fleets both on and off road in the following sectors:

  • U.K. Armed Forces and Government Departments
  • Waste Management and Recycling Sectors
  • Mining and Quarrying Industries
  • Original Equipment Manufacturers and their Customers
  • Civil Engineering, Building and Demolition Contractors
  • Grounds Care Maintenance Contractors
  • Local Authorities and Leisure Businesses
  • Agricultural Contractors and Farmers
  • The Road Haulage Industry.

No other tyre sealant on the market can match our performance.
Air-Seal Products Ltd,has been granted continuous sole supplier status for the Royal Mail Group. Following a very successful first three years of the contract dating back to August 2010, Air-Seal Products will continue to be installed throughout the 48,000 vehicle fleet.

As the tyre rotates, the product spreads evenly over the inside surface. The moment a penetration occurs, the air pressure in the tyre forces millions of fibre particles and fillers suspended either in ethylene or propylene glycol to interlock which plugs the hole in the tread area preventing any further air loss within one or two revolutions of the wheel. This action is so rapid that the driver may not know a puncture has happened. Later, when the tyre is inspected, if the cause is still present it can be removed. When removed, the vehicle must be driven immediately to enable the sealant to re-seal.

Depending on the grade of sealant used, holes up to 30 mm (1¼ inches) can be repaired using this technology.


Fibres constitute the backbone of the tyre sealant. The stronger the fibres, the stronger the tyre repair. The strongest fibres are state-of-the-art synthetic fibres such as those used in tyre cord and bullet proof vests. Using a variety of fibres is also very important, especially in the relatively thin carcass of an ATV, golf buggy or lawn care equipment tyre. The more varied the fibres in both length and degree of branching, the faster the seal forms and the more permanent the seal is.

Once a strong plug is formed by the fibres, the final seal is provided by filler particles which lodge between the fibres to form an effective airtight plug. The use of these fillers is imperative for a high performance sealant.

Suspension stability
The function of the liquid in the sealant formulation is the medium by which the fibres and fillers reach the area of the puncture in the tyre. In some sealant formulations, the components may separate over a period when the tyre is inactive. If separation does occur, such formulations will fail as tyre sealants.

Air-Seal high performance sealants will not separate to ensure protection for the legal life of the tyre.