ISO 12944-4:2017

Paints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 4: Types of surface and surface preparation

ISO 12944-4:2017 covers the following types of surfaces of steel structures consisting of carbon or low-alloy steel, and their preparation:

– uncoated surfaces;

– surfaces thermally sprayed with zinc, aluminium or their alloys;

– hot-dip-galvanized surfaces;

– zinc-electroplated surfaces;

– sherardized surfaces;

– surfaces painted with prefabrication primer;

– other painted surfaces.

ISO 12944-4:2017 defines a number of surface preparation grades but does not specify any requirements for the condition of the substrate prior to surface preparation.

Highly polished surfaces and work-hardened surfaces are not covered by ISO 12944-4:2017.

Edition	2017
Standard Part No	4
Published Date	2017
Published By	International Standardization Organisation
Page Count	20