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Ted Mooney, P.E. RET
Pine Beach, NJ

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Powder Coating on top of galvanizing

October 28, 2011

I have a client that wants to powdercoat over g60 galvanized fencing; will the coating stay on for any length of time?

Wayne Wilkerson
metal fabricator - Boca Raton, Florida

Check out BS6497.

William Doherty
Trainer - Salamander Bay, Australia
First of two simultaneous responses -- October 28, 2011

Second of two simultaneous responses -- October 29, 2011

Powdercoating on galv is like any other painting on galvanizing - totally reliant on the pretreatment.

If you use a good powder and a competent pretreatment system (probably at least 6-8 stages including rinses) you could expect 30 years performance.

Geoff Crowley
Crithwood Ltd.
Westfield, Scotland, UK

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