Paint Coating Stainless Steels (OGCP ref CP 4.4)

Primer adhesion to stainless steel sheet and plate surfaces can be an issue. Some roughening of the supplied surface may be needed by blasting, abrasion or chemical etching prior to applying the primer coats. Final cleaning is also important. Typical coating systems are outlined for external environments category C3 C4 C5I and C5M to ISO12944 and ISO9223. Paints that contain metallic zinc should not be used on stainless steel as embrittlement of the stainless steel substrate can occur in the event of severe fire damage.

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