extender pigment
Quick Summary
Extender pigments are inorganic materials used in the chemical industry, primarily in surface coatings like paint, to occupy volume and reduce costs. Unlike color pigments, they have little to no effect on a coating's optical properties, other than gloss.12
Common extender pigments include:
* Talc
* Calcium carbonate
* Silicas
* Micas
* Clays (like kaolin)
* Barytes (barium sulfate)1
These are naturally occurring or manufactured at low cost. They enhance mechanical, thermal, and barrier properties of coatings and are widely used in trade sales and industrial primer coatings.1
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
- pigment
White extender pigments are added to paints to lower their cost or improve their properties. This class includes calcium carbonate, calcium sulfate, diatomaceous silica (the remains of marine organisms), and china clays. Black pigments are primarily created from particles of carbon. Carbon black, for example, is…
Read MoreWhite extender pigments are added to paints to lower their cost or improve their properties. This class includes calcium carbonate, calcium sulfate, diatomaceous silica (the remains of marine organisms), and china clays. Black pigments are primarily created from particles of carbon. Carbon black, for example, is…
Read More - surface coatingFiller, or extender, pigments
Extensive use is made of pigments to occupy volume in coatings, enhancing their mechanical, thermal, and barrier properties as well as reducing their cost. Filler pigments are differentiated from other pigments in that they usually have little or no effect on the coatings’…
Read MoreExtensive use is made of pigments to occupy volume in coatings, enhancing their mechanical, thermal, and barrier properties as well as reducing their cost. Filler pigments are differentiated from other pigments in that they usually have little or no effect on the coatings’…
Read More