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Electropolishing Basics

Electropolishing, in its broadest definition, is a process which brightens, deburrs and passivates
stainless steel. GEMLUX® electropolishing  is different because it consistently achieves a bright, uniform finish. Scientific methods are utilized to assure electorpolishing solution remains VERY stable.  Unlike many others
who treat electropolish as an art, GEMLUX® electropolish is considered a science.




Chromium, which is a component of stainless steel, is electrochemically enhanced on the product
surface. The chromium-to-iron ratio on the surface of the stainless steel is transformed through
iron removal from a 1:6 to a 4:1 ratio. The chromium oxide layer that is formed is a homogeneous
constituent of the metal. It cannot delaminate or peel and is extremely corrosion resistant.


A stainless steel piece is placed on a copper rack and immersed into a electrolytic acid bath.
This proprietary GEMLUX® bath consists primarily of phosphoric and sulfuric acid. The bath
temperature may range from 120-180 deg F. Electricity is run through the rack (the anode) and the
work pieces. At this point, the negatively charged cathodes draw the iron off the surface of the
stainless steel.



In most electropolishing solutions, the iron ions are dissolved into the acid solution or dumped
to the bottom as sludge, and as the iron builds up, quality and consistency decrease. This does not
happen with GEMLUX®. We actually plate the iron to the negative cathode and remove the contaminating
iron on a daily basis. This produces a consistent finish on each stainless steel product.



Click here for a link to Dr. Zhu's research paper on this process. The product is then
cleaned with ultra pure deionized water and packaged completely dry to the highest standards.