Rublev Colours Extenders Set

Talc
Our talc is dry ground from natural ores in Montana. Use as an additive to make grounds and for adding texture and body to paints.

Chalk (Calcite)
The finest whiting for making brilliant white chalk grounds. Our whiting is dry ground from limestone deposits in the Lucerne Valley, California. Dry grinding limestone reduces it to a powder without destroying its particle structure, which is important in making strong chalk grounds and providing tooth on the surface of the grounds. The larger particle size of our chalk (when compared to precipitated chalk) keeps oil absorption low, which is ideal when adding it to oil paint and mediums. In painting grounds it makes a durable surface with tooth for egg and casein tempera, distemper, encaustic and oil paint.

Clear Glass Powder
Clear glass powder made from leaded crystal glass and ground into fine powder can be used in all media to give colors added luminosity or to create textural effects on the surface of paintings. Fine: Finer than 63 μ

Aluminum Trihydrate
Aluminum trihydrate is a filler, extender and bodying agent in oil- and water-borne paint that does not greatly affect the color of the paint. This is an 8 micron median particle size extender that is a bright white powder.

Kaolinite
Kaolinite is a clay mineral, also known as China clay or kaolin. Calcined kaolin clay is used as a functional extender in paint. Kaolin clay is also used in grounds, such as for painting and gilding.

Perlite
Perlite is a amorphous volcanic glass that is processed so that it is greatly expanded and white. It can be used in painting grounds and to increase the bulk and give texture to paint.

Mica (Wet Ground)
Our muscovite mica is a wet ground mineral used for applications requiring greater resistance to moisture, heat, light or chemicals and to add decorative effects, such as pearlescence.

Marble Dust
Medium, Fine and Extra Fine marble dust. Free-flowing, dry ground marble from natural calcite deposits with a controlled particle size. Use this marble powder to make grounds and for adding texture and body to paint.

Barite
This is a highest quality white, natural barium sulfate ore. Its unique properties of fine grind (3 micron median particle size), high specific gravity (4.4) and chemical inertness make it ideal for grounds, to make white paint and as paint filler.

Silica
This is a high purity, natural crystalline silica that comes from quartz quarries in Oklahoma. It is a fine ground silica sand that is inherently inert, white, bright, and is at least 99.2% silicon dioxide. Special processing assures a controlled particle size distribution, which eliminates excessively coarse and fine particles. These properties, combined with its inertness and low cost, make silica an excellent filler and extender for paint.

Nepheline Syenite
Extra Fine Nepheline syenite is a micronized functional filler and extender used as a performance enhancer in a broad range of paints, coatings, adhesives, sealants, and inks. Excellent brightness, tint retention, and weatherability can be achieved in paints. Improved color, sheen uniformity, chemical and stain resistance, and durability result when it is used in interior paint formulations. It is easily dispersed in all conventional vehicle systems, and low oil absorption permits high loadings in adhesives, sealants, and aqueous and alkyd-based paints.

Wollastonite
Extra Fine Wollastonite is a calcium metasilicate mineral that exhibits lower viscosity in paint than is indicated by its oil absorption value. The low oil absorption characteristic of wollastonite enables you to reduce raw material cost by replacement of the vehicle. The relatively high pH (10–11) of wollastonite is particularly useful in maintaining the desired alkaline pH level of water-based paints and preventing early rusting of water-based coatings. Wollastonite is an excellent extender pigment for powder coatings as well as solvent-based and waterborne paints.

Terra Alba
Terra alba, calcium sulfate dihydrate, is made by fine grinding and air separating a select, high purity, white gypsum from Italy containing about 20% water of crystallization.