Cleaning Q&A: Removal of Zinc Phosphate
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.
How to use it for planning, preventive maintenance and troubleshooting.
What you should know about cleaning and electrocleaning.
Specific questions about zinc phosphate and pretreatment are answered in one article...