Search results for 'ground pigment'

PB32

Smalt is a kind of cobalt blue glass or frit, and its use as a pigment dates from the 1600s in the glass-making regions of Saxony. We offer two shades, light and dark, which are determined by the particle size of the pigment; the more finely ground the powder, the paler the colour. Before the introduction of Ultramarine Blue, Smalt was available in a wide variety of grades. It is a very transparent pigment, which is easily overwhelmed in mixtures due to its weak tinting strength. It works best in water based media. When ground in oil, it can become almost invisible in dried oil-paint films because its refractive index is so close to that of linseed oil.

Larger quantities are available by request.

Verdigris is an artificial pigment that dates from antiquity. Originally, it was produced by exposing copper to vinegar; nowadays acetic acid is used. It is acidic, so can contribute to the deterioration of paper supports. For this reason, it is more suited to oil or tempera painting than it is to watercolour. In tempera painting, it should be bound in animal glue or isinglass glue rather than egg york. When used in oil painting it should be held in a resin oil or balsam such as Venice Turpentine, as it can turn brown when ground directly into linseed oil. It is a fast-drying, transparent pigment, with a visible crystalline structure. 

Larger quantities are available by request.

PB32

Smalt is a kind of cobalt blue glass or frit, and its use as a pigment dates from the 1600s in the glass-making regions of Saxony. We offer two shades, light and dark, which are determined by the particle size of the pigment; the more finely ground the powder, the paler the colour. Before the introduction of Ultramarine Blue, Smalt was available in a wide variety of grades. It is a very transparent pigment, which is easily overwhelmed in mixtures due to its weak tinting strength. It works best in water based media. When ground in oil, it can become almost invisible in dried oil-paint films because its refractive index is so close to that of linseed oil.

Larger quantities are available by request.

This soft yellow ochre is sourced from near the ancient woodland of Epping Forest in North London. Given legal status by Henry ll as a Royal hunting ground for the Monarchy this forest has a rich cultural and geological history. This pigment is a fine particle size and is semi-opaque.

Follow @londonpigment on Instagram for an insight into the stories behind the colours and how she makes them. 

NOTE: many of these colours are made in extrmely limited batches so please email us at info@cornelissen.com for further infomation on what is currently availible. 

PR83

Alizarin Crimson is a synthetic organic pigment that became available in 1868. It requires a wetting agent to disperse, and in oil it also absorbs a lot of liquid and dries very slowly to form a hard, brittle paint film. It is chemically identical to madder-root pigments and should be protected against UV light where possible as it can fade when applied onto a white ground, although it is less fugitive than its natural counterpart. Alizarin Crimson is a very transparent pigment, with a high tinting strength and slightly blue undertone.  

Toxicity: A/B

Larger quantities are available by request. 

PBk10

Graphite powder is an allotropic form of pure carbon, ground to 200 mesh. It is transparent and lightfast, with a slight sheen. It can be applied directly onto a paper support.

Larger quantities are available by request. This variety of graphite is sourced from Sri Lanka.

Toxicity: A/B

Cornelissen 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. The tall handle features an ergonomic top, to ease fatigue when grinding large amounts of pigment.

*PLEASE NOTE: Small and medim Cornelissen mullers are currently being sold WITHOUT branding, with ONLY the large format muller sold with gold foil logo on the rim*

We will have the branded mullers back soon, please email info@cornelissen.com for further information.

Beeswax is derived from melted honeycomb, and is available in two grades. Bleached Beeswax Pellets are white, having been bleached by the sun, and are an appropriate choice for using with pale colours, although they may revert to yellow over time. Natural Beeswax Pellets are yellow in colour, and offer a more flexible structure with a higher resin content. Beeswax has a melting point of 63-66°c, and may turn brown if over-heated. It is the most widely used wax in artists' materials, having a wide range of applications. Please see below for more details.

Beeswax is derived from melted honeycomb, and is available in two grades. Bleached Beeswax Pellets are white, having been bleached by the sun, and are an appropriate choice for using with pale colours, although they may revert to yellow over time. Natural Beeswax Pellets are yellow in colour, and offer a more flexible structure with a higher resin content. Beeswax has a melting point of 63-66°c, and may turn brown if over-heated. It is the most widely used wax in artists' materials, having a wide range of applications. Please see below for more details.

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

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

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