EN 13858:2006

Corrosion protection of metals - Non-electrolytically applied zinc flake coatings on iron or steel components EN 13858:2006

Publication date:   Sep 28, 2007

Scope

This European Standard specifies requirements for non-electrolytically applied coatings, composed mainly of zinc flakes, for protection against corrosion of steel components, excluding threaded fasteners. These coatings may also be provided with integral lubricant if needed.
NOTE 1 Requirements for threaded fasteners are given in EN ISO 10683.
The temperature and duration of curing the coating can influence the mechanical properties of components because of their change of metallurgical conditions. These coatings should not be applied to components that can be used at temperatures higher than the curing temperature, unless specifically ordered.
NOTE 2 If aluminium flakes, when added to zinc flake dispersion, form a continuous bond, a high risk of hydrogen embrittlement for steels of tensile strength over 1 800 MPa may exist because of the sacrificial action of the coating during corrosion reactions in storage and/or in service.