Ratio of oil to resin expressed as a percentage of oil by weight in the resin.
Used to determine the physical properties of a resin.
Extender additive used in decorative and architectural paints to
save titanium dioxide pigment and reduce cost.
Ability of a coating film to prevent the transmission of light and therefore
to obliterate or hide the color of the surface to which it is applied.
Period of time during which the coating application remains re-brushable. Affected by
many factors, including temperature, substrate,
Additive imparting pure to bluish brightness to polymers and intensifying
the degree of whiteness in ready-to-use white pigmented coatings. Its function
is based on the fluorescence effect. It absorbs near-ultraviolet radiant
flux and re-emits it as violet-blue visible light causing a whiter appearance, especially when
added to a yellowish-white material.
Coating defect: surface bumpiness or waviness that resembles the skin of an
orange. Orange peel is often caused by poor leveling and is a common defect
in both spray and roll applied coatings. For some coating appliances, an orange
peel effect may be desirable.
Diffusion of liquid through a paint film or other such membrane.
Sprayed coating that is dry when it hits the surface, resulting in dusty,
granular adhering particles. Can cause gloss loss with gloss paints or mottling
with flats paints.
Mechanism of drying unsaturated binders (cooked oils, alkyds etc.) in relatively
thin films in the presence of atmospheric oxygen, initiated and catalyzed