Most Recent Content in this Zone:
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PPG Chromate-Free Primer, Pretreatment on Boeing Next-Generation 737, and VIDEO
2/22/2012
Products Finishing
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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!
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Corrosion Under Powder Coating
2/21/2012
Products Finishing
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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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Adhesive Removal from Aluminum
2/21/2012
Products Finishing
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My company is having problems removing adhesives from aluminum plate that is used for salt spray testing. We are using Alkleen 002L cleaner and Deox NC-620 deoxidizer.
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Inline Aluminum Foil Cleaning
2/21/2012
Products Finishing
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I would like to degrease 0.003-0.010-inch aluminum foil inline before I punch and sheet. Can you point me toward someone who makes this type of equipment and related chemistry?
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Troubleshooting the Pretreatment and Paint Process
2/21/2012
Products Finishing
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We had finished parts sectioned, mounted, polished and examined under a microscope with the hopes of identifying deficiencies within our coating system that cause premature failure. One of the items brought up are oxides trapped within scratches and scale texture under the e-coat. The substrate is hot-rolled-steel (recycled steel) bar that has been steel shot blasted then put through the standard cleaning process prior to e-coating. Have you ever heard of or seen steel shot blasting driving oxides into small crevices or texturing natural to hot-rolled steel? We cannot seem to figure out why these oxides are still present after shot blast and pickling.
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