Coating is a covering that is applied to the surface of an object, usually referred to as the substrate. In many cases coatings are applied to improve surface properties of the substrate, such as appearance, adhesion, wetability, corrosion resistance, wear resistance, and scratch resistance. In other cases, in particular in printing processes and semiconductor device fabrication (where the substrate is a wafer), the coating forms an essential part of the finished product.
Coatings may be applied as liquids, gases or solids. Coatings can be measured and tested for proper opacity and film thickness by using a Drawdown card.
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- ISO 1461 Hot dip galvanized coatings on fabricated iron and steel articles—Specifications and test methods
- ISO 4042 Fasteners—Electroplated coatings
- ISO 10683 Fasteners—Non-electrolytically applied zinc flake coatings
- ISO 10684 Fasteners—Hot dip galvanized coatings
- ISO 12944 Paints and varnishes—Corrosion protection of steel structures by protective paint systems—Part 6: Laboratory performance test methods
