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A coating is a covering that is applied to the surface of an object, or substrate. [1] The purpose of applying the coating may be decorative, functional, or both. [ 2 ] Coatings may be applied as liquids , gases or solids e.g. powder coatings .
Surface engineering is the sub-discipline of materials science which deals with the surface of solid matter. It has applications to chemistry , mechanical engineering , and electrical engineering (particularly in relation to semiconductor manufacturing ).
It is also possible to form coatings of newer materials (e.g., met glass. beta-C 3 N 4), graded deposits, multi-component deposits etc. In 1995, surface engineering was a £10 billion market in the United Kingdom. Coatings, to make surface life robust from wear and corrosion, was approximately half the market. [7]
Sacrificial coatings are clear coatings that allow the removal of graffiti, usually by washing the surface with high-pressure water that removes the graffiti together with the coating (hence the term "sacrificial"). After removal of the graffiti, the sacrificial coating must be re-applied for continued protection.
As a rule, plastic coatings have significantly higher film thicknesses than conventional paint. For polymer coating, powder coating is commonly used. [10] There are also options for wet coating, vacuum coating, dip coating, or thermal spraying. The coating can be applied to a polymer or a polymeric material.
President-elect Donald Trump said Tuesday he plans to order “very serious tariffs” against Canada and Mexico — and vowed to rechristen the Gulf of Mexico as the “beautiful” Gulf of America.
Two trendy areas in finance — fintech and private credit — are coming together in a new multibillion-dollar joint venture. Affirm Holdings is getting its largest-ever capital commitment with a ...
The silver lining? Banchero told Marc J. Spears that he plans to return around Christmas. The team will be without its top two players for only a couple of weeks. In the meantime, we can expect to ...