Phosphating & Nano Ceramic Coatings

Phosphate coatings are predominantly applied to ferrous metals. However, it is also used Zinc and Aluminium for some specific applications. These coatings on its own are insufficiently protective for treated metal surfaces but excellent as pretreatment before painting, powder coating, impregnation with enamels, lacquers, oils and waxes. The coating is thin and adherent to the substrate metal whilst being porous and insulating. Consequently, the coating permits “keying” or mechanical interlocking of applied paint film whilst the electrical inertness of coating localise corrosion beneath adjacent unbroken painted areas of the base metal surface. Phosphate coatings may be produced by immersion, brush or spray, since surface conversion depends only on contact between substrate and phosphating solution. These coatings are also used in cold forming operations such as drawing, stamping and cold extraction operations.












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Our recommendations are made in good faith and are based on our skills. However , since the conditions of use of these product s are beyond our control, this information is given on the express condition and agreement that Grauer & Weil (India) Limited, will not be liable to any person by reason thereof. Nothing herein shall be deemed to be a recommendation to use any product in violation of any existing patent rights.