To coat metal parts, chromates are used to enhance the life of the part. Typically, chromates are used on zinc plated parts whether it be alkaline non-cyanide or chloride applications. These trivalent chromate conversion coatings offer prolonged corrosion protection to finished parts. In the past, hexavalent chromates were predominantly used throughout the metal finishing industry. Today, to meet RoHS compliances and environmental safety standards, the metal finishing industry has moved in the direction of trivalent chromates. Trivalent conversion coatings have shown to produce a scratch … [Read more...]
June 17, 2013 By
OSHA’s Hazard Communication Standard
Aligning with the Globally Harmonized System (GHS) The Occupational Safety and Health Administration (OSHA) published the original Hazard Communication Standard to provide an information system on hazardous chemicals that are used in the workplace. The purpose was to give workers that are exposed to chemicals the “right to know”. By aligning with the Globally Harmonized System (GHS), OSHA now states that workers have the “right to understand”. … [Read more...]
March 20, 2013 By
Use Potassium Permangante to Remove Contaminents in Bright Nickel Plating Solution
Unwanted organic contamination is a common problem when using bright nickel plating solutions. To remove contaminants both from outside sources and from brightner breakdown Oxidation treatments are routinely needed. Using potassium permanganate to oxidize and breakdown the organic contaminants so they can be more easily removed on a carbon pack-on filter is a common solution. Permanganate is a popular choice because it is a much stronger oxidizing agent than hydrogen peroxide and will will remove the more stubborn organic materials. Unfortunately overuse of the permanganate will cause … [Read more...]