To assess the Sheraplex WIS coating system for anti-corrosion coating of sherardized threaded fasteners produced by Specialist Metallic Coatings Ltd in accordance with WIS 4-52-03.
Sheraplex WIS is a two-part coating system comprising a sherardized surface (sacrificial corrosion protection) and a polymeric barrier layer designed for use on fasteners to be use with fittings in contact with drinking water.
The polymeric material can be Delta-Seal blue, silver, green or black.
Full details can be found in the Assessment Schedule.
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