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The definitions presented here are merely general descriptions that may prove helpful. They do not supersede the definitions of technical terms as they are used in specific documents, agreements, proposals, offerings or patents.

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A

Adhesion Promoter

An additive used to improve coating bond strength to difficult substrates.

Anti-settling Agent

An additive used to slow pigment settling during storage.

Anti-skinning Agent

An additive used to prevent skin formation in oxidatively drying paints during storage.

C

Coalescent

A solvent-like additive used to help latex particles fuse into a continuous film.

D

Drier

A catalyst used to accelerate oxidative curing in alkyd and related coating systems.

E

Extender Pigment

A mineral pigment used to control cost, sheen, durability, or film properties.

F

Flash Rust Inhibitor

An additive used to reduce rapid rusting on metal during waterborne coating application.

G

Gloss Retention

The ability of a coating to maintain gloss after weathering or aging.

H

Hiding Power

The ability of a coating to obscure the underlying substrate or previous color.

M

Matting Agent

An additive used to reduce gloss and create a matte finish.

P

Paint Binder

The film-forming component that holds pigments together and anchors a coating to the substrate.

Paint Defoamer

An additive used to reduce or eliminate unwanted foam in coatings.

Paint Dispersant

An additive used to wet and separate pigments for stable dispersion.

Paint Leveling Agent

An additive used to improve flow-out and reduce brush marks or surface defects.

Paint Opacifier

A pigment or additive used to improve hiding and opacity in a coating.

Paint Rheology Modifier

An additive used to control sag, leveling, and viscosity profile.

Paint Thickener

An additive used to increase viscosity and improve application or stability.

Paint Wetting Agent

An additive used to improve wetting of pigments or substrate surfaces.

Pigment Volume Concentration

The ratio of pigment volume to total nonvolatile volume in a coating.

R

Reactive Diluent

A low-viscosity component that reduces viscosity and becomes part of the cured film.

T

Tinting Strength

The relative ability of a pigment to influence color when blended into a paint system.

V

VOC

Volatile organic compounds emitted from a product during application or drying.

W

Washability

The resistance of a cured coating to cleaning without visible damage.