The process starts with sanding down the bare brass and applying a layer of clear packing tape to the metal. [rasp] then ... as well for painting or chemical etching. With the LaserTape in place ...

For a lot of reasons, home etching ... acid dissociates into hydrogen and chloride ions: This is a pretty potent mix, with the oxygen radical and the chloride ions attacking the solid copper metal ...

The basic phosphatizing procedure involves the etching reaction and the surface coating formation. Subsequent to thorough de-greasing and rinsing of the metal work-pieces, the phosphoric acid ...

Scientists there have developed an electro-chemical etching process that not only allows different metals to be strongly bonded to one another, but that also lets metal be bonded to almost any ...

Mr. Lehrer and the firm's executive vice president, Robert Rossi, explained the process used in photo-etching metal parts. Mr. Lehrer showed a brass and gold-plated ornament designed for the ...

Scientists at the Department of Energy's SLAC National Accelerator Laboratory have invented a customizable chemical etching process that ... and sequences of concave metal structures that form ...