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Water Quality in the Anodizing Process
Q. I would like to know more about the physical and chemical parameters that are used to evaluate the quality of water used in the anodizing process.
Ask an Expert Published: 1/1/2017
Anodizing Clinic: Sealing with Distilled Water
Q. Can distilled water be substituted for deionized water? Our facility can create a distilled water heated bath fairly easily because we already produce distilled water for another process. A DI water bath would be much more expensive. 
Ask an Expert Published: 1/1/2017
Anodizing Clinic: Painting Parts After Anodizing; Seal, or No Seal?
Q. In conversations with our anodizer on the best way to seal parts for adhesion prior to painting, he referred to a choice of either a final hot water immersion at around 120°F with no seal or a hot water seal at a much higher temperature. What is ...
Ask an Expert Published: 12/28/2016
Anodizing Clinic: Measuring Color of Coatings with a Colorimeter
Q. Recently, a company asked us to match its samples so we could do work for them. According to our method, we matched the samples, but they were rejected when they were sent to the company. We were told the samples were out of tolerance. We discove...
Ask an Expert Published: 12/1/2016
Anodizing Clinic: Anodic Coating Blistering on 7075 Alloy
Q. We have recently run into a surface condition when hard anodizing 7075 machined forgings. It seems to be present primarily on the end of the part, even down into the hole. Both of these areas are machined. The condition does not appear to be evid...
Ask an Expert Published: 12/1/2016
Anodizing: Corrosion on Hardcoat Anodized 7000 Series Forging
Q. I sent you photos of two parts that are alloy 7050 forgings. On these parts there are spots that appeared as a result of Type III (hardcoat) anodizing that were not present before anodizing. They look like corrosion of some sort, but the corrosio...
Ask an Expert Published: 11/3/2016
Parts Cleaning Clinic: Cleaning of Inconel
Q. What cleaning methods are recommended for finishing Inconel 718? Can this material be passivated or utilize the Summa process as 300 and 400 series stainless steel, or is there another way to remove the contaminants in regards to machining parts ...
Ask an Expert Published: 11/1/2016
Parts Cleaning Clinic: Phosphate Coating Problems
Q. We electrocoat sheet metal, iron castings (machined and non-machined) and aluminum castings (machined and non-machined surfaces) and are having problems with poor phosphating on aluminum substrates. We maintain the free acid at 0.7-1.1 points and...
Ask an Expert Published: 11/1/2016
Parts Cleaning Clinic: Pretreatment Equipment Suppliers
Q. I am researching manufacturers of aqueous part washers and phosphate pretreatment systems for powder coating, looking for companies that build conveyor systems, washers and treatment systems; not parts washers. The parts to be cleaned are various...
Ask an Expert Published: 11/1/2016
What’s New in the Defend Trade Secrets Act of 2016
The Defend Trade Secrets Act (DTSA) of 2016 passed with overwhelming support and the Act is now effective, impacting how a company can protect its assets. Below is a recap of what is new and what every company should be looking to do in light of thi...
Ask an Expert Published: 10/1/2016

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Clariant
Luster-On Products
Technic, Inc.

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