Fixing Excessive Brightener Consumption From Dull Work In Alkaline Non-Cyanide Zinc

As published in Products Finishing Magazine, October 2019 issue. Q. During the summer months as the temperatures have risen in the plant, we’ve been seeing an ever increasing dropoff in brightness of our alkaline zinc line. Even adding significantly more product than normally prescribed dosages has been somewhat ineffective in restoring overall quality. How do we maintain process performance and achieve the finish our customers expect while staying cost effective? A. Although great strides have been made over the last 30 years in the development of alkaline non-cyanide zinc processes … [Read more...]

How to Keep a Plating Bath from Slowing Down

As published in Products Finishing Magazine, April 2018 issue. Alkaline plating baths form carbonates over time, and these carbonates cause the baths to become less efficient, resulting in slower plating speed. Asterion’s Roger Sowinski outlines three options for removing carbonates. Q. Why is the plating time in my alkaline plating baths increasing? How do I fix this problem? A. When it comes to plating, time is money, and nothing is more frustrating than your plating bath slowing to a crawl. The good news is that you can return the plating speed to its original levels; the … [Read more...]

Alkaline Zinc Black Systems Offer Ultimate Performance

The recent introduction of the Asterion® Ultra alkaline zinc systems has placed a spotlight on a truly integrated approach to reducing rejects and increasing productivity. Of special note is the high interest in black trivalent systems that are production-proven to maintain and enhance the appearance of complex part geometries, while not sacrificing corrosion resistance. To address some of the questions (and excitement!), I’ve authored this blog specifically on Ultra black systems, with a special emphasis on passivate and sealant process operations. TECHNIBRITE™ Ultra Zn Before we … [Read more...]

Alkaline Zinc: Ensuring a Bright Solution without Sacrifice

If I was asked to make a customer wish list, “get my alkaline zinc bath brighter,” would most definitely be near the top of that list. This request would be followed by the comment, “And…while you’re at it, make sure that my bath: …does not sacrifice efficiency and throughput, and; …continues to maintain consistent metal distribution over a range of current densities” Making an alkaline zinc bath brighter seems straight forward enough.  Just add more brightener and you’re all set.  Right? If it were only that simple.  In reality, brightener additions are more often than not … [Read more...]