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

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CORROSION OF ZINC PHOSPHATE

Why is that, sometimes the zinc phosphate coated areas become corroded, is it due to environment, contamination or any other factors? How long a zinc phosphated are can stand corrosion ?

Norakmar A. Latiff
- W.P Labuan, Malaysia
2001

If the zinc phosphate is kept well oiled it might resist 48 hours of salt spray, Norakmar, but phosphate is not intended to be a corrosion resistant finish -- it's a pretreatment for paint or powder coating. Good luck.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2007

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