Parts Cleaning
Soda Blast Question Revisited
In my October 2011 column, a reader had a question regarding a source for Natrium 60 for blasting. Although I could not determine the source, I assumed it had to do with sodium bicarbonate blasting for paint removal. I wrote a bit on that subject and asked the readers to contact me if they knew any more regarding that specific product. Tim Herman of Natrium Products responded with a good overview of sodium bicarbonate blasting. As it turns out, his company offers a product that was likely what the reader was looking for: Natrium 260.
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Ask The Expert: Coating Textile Braids
Question: What is some of the newer technologies for coating hose braid?
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Enthone Acquires Select Assets of A Brite Company
Enthone Inc., has acquired select intellectual property and other assets of A Brite Company headquartered in Garland, Texas. A Brite will continue to do business as A Brite, and as an Enthone distributor. Enthone says the asset acquisition and synergism strengthens Enthone’s and A Brite Company’s global technology portfolios, while substantially expanding both companies’ market presence throughout the southern United States and Mexico.
Read MoreRepair/Rework on Powder
Is there an industry standard with regard to recoating that we can adopt?
Read MoreProduct Quality Means Better Cleaning
Choosing an Aqueous Parts Washing System: As machining technology has advanced, expectations for product quality have increased as well. But better finishes and tighter tolerances are not the only goals. The need for meeting more stringent cleaning standards has gained the attention of many shops.
Read MorePowder on Tri-Chrome Treatment
We have been coating aluminum alloys for some time with inconsistent field performance of the coating. Following your advice,we are now having a tri-chrome pretreatment process being done at a local vendor on all of our aluminum castings. So far our performance is excellent, but we are seeing failures in testing on a new product in A413 alloy. Our casting vendor tells us A380 would be much more suitable. Do you see any issues in powder coating this alloy now that we are doing the tri-chrome pretreatment process?
Read MoreAsk The Expert: Powder on Tri-Chrome Treatment
Q. Do you see any issues in powder coating A413 alloy now that we are doing the tri-chrome pretreatment process?
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Ask The Expert: Corrosion Under Powder Coating
Q. We’re powder coating on sheets of cold-rolled closed annealed parts. We found that, after some days, the color is peeling off, and we have found corrosion beneath that. Is there a solution, or should we switch to another process?
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PPG Chromate-Free Primer, Pretreatment on Boeing Next-Generation 737, and VIDEO
A chromate-free metal pretreatment and an exterior decorative primer are now standard on Boeing Next-Generation 737 production airplanes. Watch video of the 737 being built in 3 minutes!
WatchCorrosion Under Powder Coating
We’re facing problems in powder coating on sheets of cold-rolled closed annealed parts. We found that, after some days, the color is peeling off, and we have found corrosion beneath that. We do a three-in-one cleaning process and then powder coat at our job shop. Our product is an acoustic enclosure of a diesel generator set, so we are using polyester powder for sun resistance. Is there a solution, or should we switch to another process?
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