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Gartseal Sealing Systems

Our range of sealants and surface coatings primarily seal the low-level porosity (as little as 0.1%), that can compromise the corrosion performance of even the best coatings. Each sealant can have additional characteristics such as being non-wetting to molten metals, improving wetting, reducing friction or improving fiber release. Additionally, some of our proprietary sealers offer exceptional acidic corrosion resistance for some of the worst corrosive environments as well as exceptional electrical resistance properties for applications requiring insulation. By combining the optimum sealant and coating to suit the application, we improve life, wear, corrosion resistance and overall performance to levels not possible with unsealed surfaces.

Let our highly skilled staff find the correct sealant for your application.

Some advantages of our sealing systems:

  • Pore-free impregnation coating
  • Improved wear resistant
  • Improved corrosion resistance
  • Improved surface sealing
  • Improved electrtical insulation
  • Densified structures
  • Preserved abrasive surface, as sprayed
  • Optimize friction characteristics, after polishing
  • Wettability
  • Water repellency
  • Thermal insulation
  • Liquid metal wear resistance
  • Non-wetting to some molten metals
  • Increased coating hardness
  • Ceramic impregnation


  • Pumps
  • Impellers
  • Balls
  • Seats
  • Seals
  • Shafts
  • Turbine blades
  • Turbine rings
  • Turbine casings
  • Turbine separators

Industries served:

  • Oil & gas
  • Petrochemical
  • Agro-chemical
  • Land-based turbines
  • Mining
  • Valve manufacture
  • Pump manufacture
  • Shafts for all industries

We are constantly expanding and updating our range of coatings and sealing systems to adapt to ongoing market developments.

Featured Gartseal Systems

  • Gartseal A - For plasma-sprayed coatings including ceramic materials.
  • Gartseal D - Preferred choice for applications requiring electrical insulation. Can also be used to seal stainless steels and superalloys.
  • Gartseal P - Highly corrosion resistant sealer used for OEM specifications requiring resistance to HCL and other acids.
  • Gartseal 622 - Used to surface seal and fill the porosity in other materials. Surface treatments such as thermal spray processes, nitro-carburising and tuftriding create a porous outer layer. This layer has excellent liquid retention properties and when subjected to the Gartseal 622 densification process, a single-phase ceramic layer is chemically bonded into and over the porous outer layer.

The Gartseal 622 coating produced in this way is <5µm thick with a hardness up to 2,900 VPN. In addition to the significant increase in surface hardness, corrosion resistance and frictional properties are improved.

The same techniques can be used to seal the surface of other porous materials such as solid ceramics and sintered metals. If the impregnation is vacuum-assisted, full penetration of the porous structure can be achieved and filled to produce a harder and stronger component.

Flame-sprayed coatings and electroplated hard chrome can also benefit from the Gartseal 622 densification process. These coatings are by nature micro-cracked and porous and therefore susceptible to interface corrosion problems. The penetration performance of the Gartseal is so efficient that the micro-cracks in hard chrome can be filled to improve both wear resistance and corrosion performance.

Thickness Range 1 – 10µm
Hardness Hv 1200

In addition to the sealants above, we are happy to develop custom seal materials for the most demanding thermal spray or plated surfaces.