Coating

Coating is a covering that is applied to an object. The aim of applying coatings is to improve surface properties of a bulk material usually referred to as a substrate. One can improve amongst others appearance, adhesion, wetability, corrosion resistance, wear resistance, scratch resistance, etc.. They 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.

Examples of coatings:

• Coating and printing processes
• Chemical vapor deposition and physical vapor deposition
• Conversion coating

• Anodizing
• Chromate conversion coating
• Plasma electrolytic oxidation
• Oxide (coating)
• Phosphate (coating)

• Detonation Coating
• Diffusion Process. A Ferrous Coating

• Sheradizing

• Paint

• Enamel (paint)
• Powder coating
• Industrial coating
• Silicate mineral paint
• Fusion bonded epoxy coating (FBE coating)

• Pickled and oiled (P&O), a type of plate steel coating.
• Plasma coatings
• Plating

• Electroless plating
• Electrochemical plating

• Polymer coatings, such as Teflon
• Sputtered or vacuum deposited materials
• Enamel (vitreous)
• Paper coating

See also

• Formulations
• UV Coating
• Adhesion Tester
• Deposition
• House painting
• List of coating techniques
• Thin-film deposition