Search results for 'pigments'

Roberson Glass Mullers are handmade using high quality-glass. 

Mullers act as flat-bottomed pestles, which are used to grind pigment into a binding medium, suspending it evenly to create a uniform covering of binder around each pigment particle. Using a muller and slab, rather than simply mixing pigment and binder together, will create a more homogenised and stable paint. 

Roberson Glass Mullers are handmade using superior boro silicate laboratory glass, which is 40% harder, more heat resistant, and offers better clarity than soda-lime glass. The base of each muller is ground perfectly flat, and sand-blasted to create a fine tooth to facilitate the grinding of pigments.

Use in conjunction with a Cornelissen Glass Slab to make paint efficiently. The sand-blasted texture of the muller and plate helps to push and distribute the pigment throughout the binder quickly. This will mean less grinding, and more painting! 

NOTE: Sizes may vary slightly as these are handmade products. 

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PVA mixes with pigments to make glossy acrylic colours or an easy colour wash for walls. Also suitable as an adhesive. Learn More

Mix with tube oils or pigment to improve flow and translucency, resulting in a satin finish. Contains silica driers. May darken if cap is left off bottle; if this happens, replace the lid and leave overnight to restore the colour with no lasting ill effects.

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Safflower Oil is light-coloured, making it suitable for grinding pale pigments. It is still sometimes used as a binder for commercially available paints, although due to its very slow drying time it is best reserved for the final layers of a painting. Compared to Linseed oil, Safflower Oil will give a matte finish.

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Linseed Oil is derived from flax seeds, and appears on our shelves in many guises: Cold Pressed, Refined, Stand Oil, and as a key ingredient in many mediums. It has been appreciated for its drying properties since the Medieval period, and has become the most popular oil used in painting today due to the strong, flexible and glossy film that it creates. Cold Pressed Linseed Oil is ideal for the grinding of pigment to make oil paints. The process of producing Cold Pressed Linseed Oil results in a lower yield, but the resultant oil is of a superior quality to oil that has been extracted by other methods, creating a paint film that is more resistant to embrittlement on aging. Its yellow colour is caused by the high concentration of linolenic acid, the presence of which provides durability to the paint film. The amount of oil that each pigment requires can vary enormously. Alizarin Crimson, for example, requires a high percentage of oil compared to most other colours. We would always recommend mulling the pigment and oil together thoroughly to create a "short" or buttery paste, with evenly dispersed, well-coated pigment particles. This process contributes to the strength and flexibility of the paint film, and prevents the inclusion of excess oil. Origin: USA Learn More

Unlike other commercially available oil paints, Roberson Artists' Oil Colours do not contain any fillers, extenders or stabilisers. Each paint consists solely of high-quality pigment that has been ground into cold pressed linseed oil, resulting in a highly pigmented paint. This strength of colour presents the possibility of greater economy of use and a less homogenised texture between each tube, instead allowing the unique qualities of each individual pigment to reveal themselves. By limiting our range to 59 shades, we dispense with colours that can be easily mixed, creating a focussed palette of intense, lightfast paints that offer limitless combinations.

Available in 40ml and 225ml tubes

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Artists' quality metallic oil paint sticks for painting & drawing. Non-tarnishing and highly pigmented, these soft paint sticks are made with an unique mix of mica pigments, oils and waxes which generate a solid metal effect. Easy to use alongside regular oil paint. Blend and shade the colours together to make further shades. Treat as oil paint for surface preparation and clean-up. Learn More

Unlike other commercially available oil paints, Roberson Artists' Oil Colours do not contain any fillers, extenders or stabilisers. Each paint consists solely of high-quality pigment that has been ground into cold pressed linseed oil, resulting in a highly pigmented paint. This strength of colour presents the possibility of greater economy of use and a less homogenised texture between each tube, instead allowing the unique qualities of each individual pigment to reveal themselves. By limiting our range to 59 shades, we dispense with colours that can be easily mixed, creating a focussed palette of intense, lightfast paints that offer limitless combinations. 

Available in 40ml and 225ml tubes

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Mix with tube oil colours or pigment to improve flow and translucency. For thin glazes, fine details and smooth brushwork. Learn More

Mix with tube oil colours or pigment to improve flow and translucency. For thin glazes, fine details and smooth brushwork.

Contains: Turpentine, Damar Resin, Stand Oil, Cobalt Dryers.

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Printing inks can be made by mixing powdered pigments with copperplate oil. Pour small quantity of oil into well of dry pigment and grind with glass muller untill smooth. Thin oil is then added until mixture has consistency of double cream. Thin, Medium or Thick. Learn More

Poppy Oil is a slightly later addition to the artist's cabinet than Linseed Oil and Walnut Oil. It is generally used as a binder for pale colours, where the warmth of Linseed Oil is not desired. It provides a matte finish and dries very slowly, so we would not advise using it in conjunction with slow-drying pigments or in underpaintings. A paint film produced by Poppy Oil is weaker and softer than that created by Linseed Oil. This is because it contains a smaller percentage of linolenic acid than Linseed Oil; this substance imparts both strength and yellowness to an oil.  

Although some of these properties can be perceived as drawbacks, paints made with Poppy Oil generally obtain a "short" or buttery texture without the addition of waxes or other additives, which can be an advantage for certain colours that produce poor consistencies in Linseed oil alone. Sometimes, the addition of a small quantity of Poppy Oil when grinding a tricky or "stringy" pigment in Cold Pressed Linseed Oil can introduce some of benefits of Poppy Oil, without transmitting its negative characteristics.

Paints made with Poppy Oil are particularly suited to "alla prima" working methods, where paint is applied spontaneously. When working in successive layers, Poppy Oil would only be appropriate for the final stages of a painting.

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(Copolymer emulsion) add to pigment to make acrylics. May also be added to prepared acrylic colours to extent them and increase gloss. Learn More

Unlike other commercially available oil paints, Roberson Artists' Oil Colours do not contain any fillers, extenders or stabilisers. Each paint consists solely of high-quality pigment that has been ground into cold pressed linseed oil, resulting in a highly pigmented paint. This strength of colour presents the possibility of greater economy of use and a less homogenised texture between each tube, instead allowing the unique qualities of each individual pigment to reveal themselves. By limiting our range to 59 shades, we dispense with colours that can be easily mixed, creating a focussed palette of intense, lightfast paints that offer limitless combinations.

Available in 40ml and 225ml tubes

Zinc White and Titanium White only available in this intermediate size of 120ml

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