Cleaning Q&A: Removal of Zinc Phosphate
How can we effectively remove phosphate from a steel surface after the drawing process?
Q. How can we effectively remove phosphate from a steel surface after the drawing process?
A. Most phosphate coatings can be removed with a strongly alkaline, chelated stripper. This would be run at a very hot (160–200°F), fairly high concentration (8–12 ounces per gallon).
Originally published in the June 2016 issue.
What you should know about cleaning and electrocleaning.
Better adhesion, enhanced corrosion and blister resistance, and reduced coating-part interactions make pretreatment a must.
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