Basecoat

In multi-coat finishing systems, notably automotive painting, the pigmented coat that provides the colour and visual effects such as metallic or pearlescent flake. It is normally protected by a clear topcoat that supplies gloss and durability.

Also known as: colour coat

Related terms

Topcoat

The final coat of a coating system, providing the specified colour, gloss and resistance to weathering, ultraviolet light and chemical exposure. It is the system's first line of defence against the environment and largely determines how the finish looks over time.

Coatings & protectionAerospaceAutomotiveConstructionMarineGreen energyIndustrial

Primer

A preparatory coating applied to a substrate before an adhesive, sealant, coating or waterproofing membrane, improving adhesion by sealing porosity, binding dust or providing a chemically compatible surface. Primer selection depends on both the substrate and the product to be applied over it.

Resins & adhesivesCoatings & protectionRoofing & waterproofingAerospaceAutomotiveConstructionMarineGreen energyIndustrial

Two-pack coating

A coating supplied as two components, a base and a curing agent, that are mixed immediately before use and cure by chemical reaction rather than solely by solvent evaporation. Epoxy and polyurethane two-pack coatings dominate high performance protective and refinish work, and once mixed they must be applied within the pot life.

Coatings & protectionResins & adhesivesAerospaceAutomotiveConstructionMarineGreen energyIndustrial

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