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Film Thickness Measurement
Why will the film thickness gage read the coating thickness on the weld joints between two stainless steel pipes and on the flanges but not on the pipe itself?
Ask an Expert Published: 1/4/2013
Low Phosphate Coating Weight
We are getting a low coating weight with an immersion zinc phosphate coating. Could pH be a factor in this issue?
Ask an Expert Published: 12/10/2012
Spraying High-Viscosity Paints
We have problems getting a consistently even distribution of a high-viscosity paint in the spray pattern, resulting in striping on the sprayed parts. To get better results, we are currently adding reducing solvents to lower the paint’s viscosity for...
Ask an Expert Published: 12/4/2012
Phosphating Dust and Overspray
How can we cut phosphating dust after zinc phosphate and passivating stages, and reduce overspray losses in our water wash spray booth?
Ask an Expert Published: 10/29/2012
Finding Paint Testing Laboratories
We occasionally have problems with insufficient paint adhesion. Where would I find a lab to perform an in-depth analysis of the adhesion among the interface of our paint, a base coat and primer material?
Ask an Expert Published: 10/26/2012
Enclosed Spray Booth
We are located in southern India, where the normal temperature is 30-40°C. How can we control the humidity and temperature in our spray paint booth?
Ask an Expert Published: 10/2/2012
Weld Drag Marks
Regarding the question by B.F. (January 2011) concerning spot weld drag marks: While your answer was certainly correct, the question may still not be completely answered.
Ask an Expert Published: 9/28/2012
Painting Stainless Steel
We are concerned about paint adhesion on equipment cabinets made of mostly 41003 (a utility-grade stainless steel that is 12 percent Cr) and either 304 or 201 for the hard-to-draw parts.
Ask an Expert Published: 7/31/2012
Painting Window Screening
We apply paint by a dipping process to insect screening made from aluminum alloy 5052, then use a high-speed rotating beater to beat away excess paint from between the wires. The finished product shows some bare spots on the surface, and we don’t kn...
Ask an Expert Published: 7/9/2012
Mysterious Air Bubbles
We have a problem with air bubbles from an air-piloted fluid regulator in our finishing operations.
Ask an Expert Published: 7/5/2012

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