Exploring the: Application Systems Zone
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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.
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 ...
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...
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...
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...
Plating Clinic: Adhesion of Brush Plated Deposits
Q. How well does a brush-plated deposit adhere to the base metal?
Anodizing: Black Dyed Parts Require Excellent Lightfastness
Q. How long does an 8-rated dye last?
Anodizing: Black, Pitted Areas on Anodized Parts
Q. What are the black pits on my parts? How is this happening?
Anodizing: Stripping Type III (Hard) Anodic Coatings
Q. Is it possible to strip hard coat type III anodized coatings?
Anodizing Q&A: Rinsing Blind Holes Prior to Dying
I have problems with leaching from blind holes in black anodized parts.