EN 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) EN ISO 12944-4:2017

Publication date:   Mar 15, 2018

General information

60.60 Standard published   Dec 20, 2017


CEN/TC 139 Paints and varnishes

European Norm

25.220.10   Surface preparation | 87.020   Paint coating processes | 91.080.13   Steel structures



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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.

Life cycle


EN ISO 12944-4:1998


EN ISO 12944-4:2017
60.60 Standard published
Dec 20, 2017