Material used to increase the bulk of a medium, to lessen the amount of pigment used while maintaining body, to reduce cost in student-quality paints for example. See also filler.
A white pigment added to a coloured pigment to reduce its intensity and improve its working qualities.
Pigment that can contribute specific properties to a coating, but usually does not substantially affect the colour.
Colorless ink. It causes pigmented ink to become more transparent.
A pigment which contributes very little hiding to the system, but does reinforce the film and alter the gloss.
Ingredients added to paint to increase coverage, reduce cost, achieve durability, alter appearance, control rheology and influence other desirable properties. Less expensive than prime hiding pigments such as titanium dioxide. Examples: barium sulphate, calcium carbonate, clay, gypsum, silica, talc. May also improve coating performance.
A low-hiding, inexpensive pigment that fills out and extends the high-hiding and coloured pigments' capabilities, provides bulk to the paint, and can positively or negatively have an impact on many properties. Some common extenders are clay, calcium carbonate, and silica.
Organic material used to improve polymer properties. Syn. Filler
A less-expensive ingredient than titanium dioxide that fills out and extends the pigment's capabilities. Extender cannot be used without pigment. Some common extenders are clays, calcium carbonate, and silica.
A solid material used as an additive to impart other specific physical properties to a coating; They are often natural minerals such as talc, kaolin, whiting etc. The preferred term is generally “extender”. The term is derived from the term “pigment extender” as they are generally pigment-like in nature but possess poor optical properties. Pigments themselves are generally too expensive to use to modify properties other than colour. An example of a case where both pigmentation and other properties are filled by the same substance would be a red oxide primer. See also See also seale, size, filler, bonding liquid, undercoat.
A pigment of low hiding power, used principally to "extend" or make paint go further and to bind together pigment particles of various shapes. Used because of its physical or chemical properties.
Inexpensive and inert pigment added to paint for bulk and to lower costs.
Pigment which provides very little hiding power but is useful in stabilizing suspension, improving flow, lowering gloss, and providing other desirable qualities; generally low in cost.
Material used to improve polymer properties. Syn. Filler, Reinforcer