SealPlex2®

The SealPlex2® is 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 SealPlex® densification process, a single-phase ceramic layer is chemically bonded into and over the porous outer layer.

The SealPlex2® coating produced in this way is <5um 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 SealPlex2® densification process. These coatings are by nature micro-cracked and porous and therefore susceptible to interface corrosion problems. The penetration performance of the SealPlex2® is so efficient that the micro-cracks in hard chrome can be filled to improve both wear resistance and corrosion performance.

Oil and gas applications
Pumps, impellers, balls, seats, seals and shafts for sealing of thermal sprayed coatings. Gas and steam turbine applications (Blades, rings, valve casings and separators) also benifit from the SealPlex2® coating system.

Thickness Range
1 – 10 um

Hardness Hv
1200

Properties and Description

Pore-free impregnation coating.

Increased Wear resistant

Increased Corrosion resistance

Improved Surface sealing

Improved Electrical insulation

Densified structures

Abrasive surface, as sprayed

Low friction characteristics, after polishing

Wettability

Industries Served
Oil and Gas, Petrochemical, Agro-chemical, Land based turbines, Mining, Valve manufacture, Pump manufacture, and shafts for all industries for the sealing of thier thermal sprayed coatings.