No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

finishing.com -- The Home Page of the Finishing Industry

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Surface pitting of painted steel parts

Some carbon steel parts that we paint exhibit pits on the surface immediately after painting and drying. We are not sure if the pits (1/16" long, 0.002" to 0.004" deep) are initially in the steel(they are not visible on the parts prior to painting); or if they are being created during the treatment & painting process (iron phos coated and paint). We have been investigating original pitting on the steel surface without finding a cause, but now we think that it may be caused in the paint process. Is it possible that these pits could be caused during the pretreatment and paint process? What should we be looking at in this process to understand? Does anyone have experience with pitting during the treatment & paint process?

D. Klesser
Manufacturer - Pittsburgh, Pennsylvania, USA
2004

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: