No cost, no registration, no passwords -- just aloha, fun & authoritative answers
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

How long does galvanized plating last?

Lynda Smith-Barry
Tampa, Florida
2006

It lasts a long time, Lynda, but the exact number depends on the thickness and the exposure conditions. But usually 25 years and up if you are speaking of open air rather than immersed in water or in the ground.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2006

2006

Also the zinc coating thickness is important.
In a non-coastal and non-polluted area each micron of zinc counts for approximately one year of service life.

Passivation of the zinc coating will extend this.

Barry Groeneveld
coil coating - Heijningen, The Netherlands

2006

Recent UK research shows a life of up to 170 years in a rural environment for a standard galvanized coating.
You can check this out at the UK Galvanizers association website where there's a map showing life expectancy across the UK. Transferring this data to your location might be erroneous, but it will give you an idea.

Geoff Crowley
Crithwood Ltd.
Westfield, Scotland, UK

adv.
this text gets replaced with bannerText

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

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: