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The Company
Hardide plc listed on the London Stock Exchange's Alternative
Investment Market (AIM) in April 2005. This followed the formation
of Hardide Coatings Limited in 2000 to develop and commercialise
the Hardide coating technology. In 2003, the company headquarters
and coatings facility in Bicester, Oxfordshire was established
and our first international coatings plant opened in Houston,
Texas, USA in September 2006. Hardide plc is incorporated in England and Wales. England is the main country of operation.
The Technology
Hardide combines hardness, toughness, low friction and chemical
resistance. The coating is a homogeneous, binder-free tungsten
carbide produced by a low temperature chemical vapour deposition
(CVD) process. Components are heated in a furnace to between 500°C
and 600°C, depending on the substrate and application; once
at temperature, a controlled mixture of gases is pumped into the
chamber where a series of chemical reactions takes place. The
tungsten carbides crystallises on the surface of the components
to produce a smooth, homogeneous layer of binder-free tungsten
carbide coating; this nano-structured pore-free material uniquely
combines abrasion, erosion, friction and chemical resistant properties.
The CVD process creates a flexible coating which can coat complex
shapes or internal surfaces that are impossible by cemented carbides
such as HVOF spray or PVD coating technologies. Hardide can be
applied to substrates including Steel, Stainless Steel, Monel,
Inconel, Copper, Stellite and other alloys with an accurately
controlled coating thickness ranging from 5 to 100 microns.
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This nano-structured pore-free coating uniquely combines abrasion,
erosion, friction and chemical resistant properties.

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