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Various colors on stainless steel 18 Cr / 8 Ni 7.5 g of sodium dichromate , 1000 mL of sulfuric acid (1.24 g/cm 3 ), lead cathodes, object as an anode, 70-90 °C temp, 0,06 A/dm 2 , voltage 1.3 V – colors depend on the duration of the procedure (5-50 min.), brown, blue, reddish brown, yellow, green.
The effect is visible already at concentrations of 0.1% in the paint system. The intensity is steadily increased up to pigment concentrations of about 2%. The single light spots arising from the pigment structure and orientation in the paint system seem to spring back and forth when a painted metal plate is tilted.
Typically voltages of 25 – 400 volts DC are used in electrocoating or electrophoretic painting applications. The object to be coated is one of the electrodes, and a set of "counter-electrodes" are used to complete the circuit. After deposition, the object is normally rinsed to remove the undeposited bath.
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.
It was taken over by Williams Holdings in 1987 [5] and then by Akzo Nobel in 1990. [ 6 ] It was sold in a management buyout backed by the private equity firm Endless in August 2008, in a deal to satisfy the European Union 's concerns of a possible monopoly after Akzo Nobel's takeover of ICI .
Overpainting is the final layers of paint, over some type of underpainting, in a system of working in layers. It can also refer to later paint added by restorers, or an artist or dealer wishing to "improve" or update an old image—a very common practice in the past. The underpainting gives a context in which the paint-strokes of the ...
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related to: heirloom paint all-in-one that paints over stainless steel- 634 S High St, Columbus, OH · Directions · (614) 221-1845
