Thin paint, usually a chromate, designed to promote adhesion or to be used
as a barrier coat.
Additive which exudes to the coating surface and forms a thin, transparent
and durable protective barrier. The coating surface becomes hydrophobic and has
non-wetting and water-proofing properties.
Coating defect: change in surface appearance due to the action of water standing
on the paint film or substrate.
Additive used to slow down drying of latex paints and to prolong open-time.
Solid or semi-solid material derived from petroleum distillates or residues by
such treatments as chilling, precipitating with a solvent or de-oiling. It is a
light-colored, more-or-less translucent crystalline mass, slightly greasy to
the touch, consisting of a mixture of solid hydrocarbons in which paraffin
series predominates. Can be used as surface
conditioner or rheology modifier.
Surface deterioration of a coating surface during outdoor exposure. The use of
antioxidants, UV light stabilizers, etc... permits to have a greater
Ability of a wet coating to blend smoothly together in the overlap areas during
Wet on wet
Technique of painting whereby the second coat is applied before the first
coat has dried and the composite film dries as a whole.
Impregnation of a material by a liquid by replacement of an air/solid interface by a
liquid medium/solid interface.
Substance used to reduce the
surface tension and thereby facilitate spreading or impregnation of a
surface. Additive that belong to the group of
Syn. Dispersing agent ,
Dispersant, Grinding aid, Milling aid
Capillary drawing action bringing oil to the surface.
Phenomenon by which electrically charged paint droplets curve around the rear
side of the object being painted.
Coating defect: skinning over of the film surface and absorption of the liquid
within the film.