Search results for 'ground pigment'

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

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. 

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. 

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.

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.

This warm earthy yellow is made from yellow bricks the quintessential London ‘stock brick’ which was in use during the 18th and 19th centuries. This pigment has a medium grain size and is transparent. Learn More

Made from pulverised historic London bricks collected from the foreshore of the Thames near Tower Bridge and Wapping this deep red pigment is essentially a variety of red ochre. During the Victorian era, London Clay was dug up and fired on construction sites to produce the building materials for the city. Red brick pigment has a medium grain size and is opaque. Learn More