The C-Ramic Coating process describes the thermochemical forming and bonding at low temperature, of ceramic substances to a metal substrate.

This unique coating process is exclusive to C-RAMIC AUSTRALIA and can be applied to all ferrous metals, nickel alloys, titanium alloys, and aluminium alloys.

To understand the coating process, the terms C-RAMIC coat and C-RAMIC seal are simply descriptive elements of the process which, when complete, is a C-RAMIC Coating.

C-RAMIC coat is initially a ceramic slurry, which may be applied to the most complex shapes, large and small, on internal or external surfaces. The slurry contains a matrix of ceramic particles and a liquid that chemically interacts with the substrate surface and the ceramic particles.

When cured (at low temperatures), a thermochemical reaction bonds the substrate surface and ceramic particles, creating the initial protective coating. In this initial state, the coating is porous and requires sealing to develop maximum strength and corrosion resistance.

C-RAMIC seal is the compatible ceramic sealer for
C-RAMIC coat. The application of C-RAMIC seal will completely fill the C-Ramic coat pores with bonded ceramic material, creating a very dense coating with an extremely durable wearing surface. Variations to the formulas of C-RAMIC coat and C-RAMIC seal will create variations (as required) in the protective properties of the finished C-RAMIC Coating.

A C-RAMIC Coating will withstand the strongest epoxy pull test and selected formulas will produce hardness values up to 3000 Vickers. It is stable at temperatures well in excess of 1000°C and will withstand the thermal shock of being quenched in water from this temperature. It has extreme corrosion resistance to hot oxidizing acids and chloride salts. Machine finishing can be performed to usual tolerances, generally by conventional methods.
C-RAMIC seal may also be applied to other porous surfaces (such as chrome plate or thermal spray coatings) to markedly improve hardness and wear characteristics.
The penetration of C-RAMIC seal into the pores, followed by the thermochemical transformation into a solid ceramic, provides a unique and effective method of enhancing existing surface treatments, with no measurable change to surface dimensions. Hardness values of 1200 Vickers can be readily achieved using this method of additional surface enhancement.

C-RAMIC Coating of selected mechanical components has proven to dramatically extend useful service life of the components, thereby extending repair/replacement intervals and avoiding unnecessary and expensive downtime. C-RAMIC Coating of components to protect against corrosion and/or sliding wear has proven remarkably successful, with some repair/replacement cycles extended by a factor of 10, again dramatically reducing expensive downtime.

C-RAMIC Coating of aluminium components to resist wear and/or corrosion is now possible, following extensive research and testing. By arranging the thermochemical reaction to occur at an extremely low temperature, the coating is formed and bonded to give a durable wearing surface, without destroying the base properties of the aluminium substrate.

Should you require further information on how the C-Ramic process may be applied to your particular situation, contact the experts at C-Ramic.