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A phosphate coat is necessary to protect the body against corrosion effects and prepares the surface for the E-Coat. The body is dipped into the Electro-Coat Paint Operation (ELPO/E-Coat), then a high voltage is applied. The body works as a cathode and the paint as an anode sticking on the body surface. It is an eco-friendly painting process.
Electrostatic coating is a manufacturing process that employs charged particles to more efficiently paint a workpiece. Paint, in the form of either powdered particles or atomized liquid, is initially projected towards a conductive workpiece using normal spraying methods, and is then accelerated toward the work piece by a powerful electrostatic charge.
This process is industrially used for applying coatings to metal fabricated products. It has been widely used to coat automobile bodies and parts, tractors and heavy equipment, electrical switch gear, appliances, metal furniture, beverage containers, fasteners, and many other industrial products.
For BMW Canada and BMW North America, the metallic paint premium applies to entry-level offerings such as the BMW 3 Series (resulting in a disproportionate number of 3 Series cars sold in the late 2000s being white) and the BMW X1, while more expensive cars such as the BMW 5 Series have metallic paint as a no-charge option. [citation needed]
This process coats an object electrostatically and then cures it with heat, creating a finish harder and tougher than conventional paint. Originally used on metal manufactures, such as household appliances, aluminium extrusions, drum hardware, automobile parts, and bicycle frames, the practice of powder coating has been expanded to allow ...
A conversion coating is a chemical or electro-chemical treatment applied to manufactured parts that superficially converts the material into a thin adhering coating of an insoluble compound.
Coat object with a very thin layer of linseed oil, then gradually heat it to 300–400 °C, repeat the procedure if necessary, this process can be used on any metal, which can be heated to the temperature mentioned (except lead, tin and its alloys). [28] Brown for iron. Use a 5% aqueous solution of ferric chloride.
Once water seeps through to the bare metal, oxidation will begin (plain steel will simply rust). [5] Metal primers might contain additional materials to protect against corrosion, such as sacrificial zinc. Primers are used on metal hydroxides/oxides to improve the surface condition and to encourage bonding. Without a primer, paint applied to ...
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