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

-----

Effect of PVC coating on Galvanized wire

Q. We are using hot dip galvanization for galvanizing 25.5 swg low carbon low silicon wire.
The Zinc coating is 25 gsm. There are no white spots or black spots on the wire. But after PVC coating if we check the wire the zinc coating is getting removed from the wire. There are lot of black spots appearing on the GI wire after PVC coating. We are not able to find the reason. The PVC coating is done at a maximum of 150° C temperature.
Kindly please explain the reasons behind this and suggest so that there is no peeling of zinc after PVC coating.

JanapaReddy VinodKumar
working as Manager(production) in a wire galvanization unit - Hyderabad, AndhraPradesh, India
February 7, 2012

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: