Search results for 'de 18'

Antique Gold Leaf 23 3/4 ct, Extra Thick. 85 x 85 mm. Book of 25 leaves. Coverage per book is 0.18 m2 (1.97 sq. feet) Learn More

PB27

Prussian Blue is a synthetic organic pigment that was discovered by the paint maker Diesbach, apparently by accident, in Germany in the early eighteenth century. For many years, it was used not only as a colour in its own right, but also as a component of the original Hooker's Green. The other ingredient, gamboge, is highly fugitive, which is why many watercolours painted with Hooker's green have taken on a bluish tone with with age.  

It is a very transparent and heavily staining colour. It dries quite quickly in oil, and can therefore wrinkly if applied too quickly. It is suitable for use in oils, watercolour, and egg tempera. However, it shouldn't be used in conjunction with alkali substances, such as Lead White or Calcium Carbonate as it can turn brown, so it isn't suitable for fresco. For the same reason, it isn't used with acrylic resin binders due to their alkaline nature, so most paint manufacturers will replace Prussian Blue with a mixture of Phthalo Blue and black in their acrylic ranges. It requires a wetting agent to fully disperse into a binder.

Toxicity: B

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The perfect introduction to working with pigment, this selection of thirty pigments provides a wide range of colours for the production of paint. Each colour is supplied in a 15ml plastic jar, and the set includes both natural and synthetic colours. Recipes can be found on our homepage, with instructions for making different paints, including watercolour, egg tempera and oil paint. Learn More

PBr7

Burnt Umber is a natural earth pigment from Italy, composed of iron oxide, manganese, and aluminium silicate. It is a form of Raw Umber that a has undergone a process of calcination, becoming warmer, more transparent and easier to disperse. It has a good tinting strength, and is very lightfast, quick-drying, and stable in all media. In oils it forms a hard, fairly flexible paint film, though it may be difficult to use in acrylic mediums.

Toxicity: B

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Viridian Green is a synthetic inorganic pigment, similar in composition to Chromium Oxide. However, unlike Chromium Oxide, Viridian contains water molecules within its crystal structure, imparting a greater degree of transparency. Sometimes referred to as Verte Eméraude, Viridian was discovered in France in 1838, patented in 1859, and made available in the UK in 1862. It is stable in all media, and offers excellent lightfastness and good tinting strength. It requires a high oil content, and dries slowly to form a hard, fairly flexible paint film.

Toxicity B

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NB1

Genuine Indigo is a natural vegetable pigment derived from the Indigofera Tinctoria plant, which was first imported into Europe from India in the seventeenth century. It replaced woad, which had been grown natively in Europe for its blue dye. The leaves are soaked in water to ferment; upon drying, an oxidised residue forms on the dry leaves, which is removed, washed, boiled in water, and then dried to form cakes of pigment or dye.

Indigo is very transparent, with a good tinting strength. It requires a wetting agent to disperse, and in oil it dries very slowly. It is fugitive to light; this drawback means that it is no longer commonly available in commercial paints. It fell out of general use at the beginning of the seventeenth century, largely replaced by Prussian Blue, and synthetic Indigo was patented in the 1890s. However, it provides a subtle shade of blue that is still desirable in works that are going to be protected from light.

Toxicity: B

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Spinel Black, sometimes known as Manganese Ferrite Black, is a synthetic mixed-metal oxide pigment. It provides a deep, cool, transparent black, which dries quickly in oil.

Toxicity: C

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Zinc White, or Zinc Oxide, is an artificial mineral pigment that was first produced in France in the late 18th century. Its use in commercial watercolours as Chinese White pre-dates its inclusion in oil painting. It is a semi-opaque, lightfast pigment, which dries very slowly in oil. Of all white pigments, it produces the most brittle paint film, so is not recommended in large quantities for impasto techniques. However, it is a good addition to a palette which requires a less overwhelming white than Titanium White.

Toxicity: B

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PBr7

Burnt Sienna is a natural earth pigment that has been in use since antiquity. Our Burnt Sienna comes from Tuscany, and is produced by calcining Raw Sienna to temperatures of about 450 degrees Celsius. This process creates a rich warm colour and increases transparency. It also offers a good tinting strength, excellent lightfastness, and a fast to medium drying rate in oil. It is stable in all media but, like umber pigments, may be difficult to disperse in acrylic binders. 

Toxicity B

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PB29

Ultramarine Blue Limewash is an artificial mineral pigment that is produced by heating clay, soda, sulphur and coal to high temperatures. Its name comes from outremer, or over-the-sea, as a reference to the highly-prized Lapis Lazuli pigment which had been imported into Europe from Afghanistan since the Middle Ages. First manufactured in France and Germany in 1828, synthetic Ultramarine provided a brilliant and affordable blue to artists, and it remains one of the most popular blues on artists' palettes today.

It is a transparent pigment, with a high tinting strength and excellent lightfastness. Most Ultramarine colours react to alkali and are therefore unsuitable for use in lime-fresco; Limeproof Ultramarine Blue remedies this problem. It is stable in all other media, although it can be tricky to grind in oil. Instead of creating a thick, buttery paste, it can remain stringy and deteriorate when stored in a tube. To correct this, many commercial paint manufacturers include additives and waxes in their recipes; if you intend on grinding your own paint, you could try replacing 10-15% of your Linseed Oil with Poppy Oil to improve the consistency. Ultramine Blue provides a slow-drying, fairly hard paint film, which can tend towards brittleness.

Toxicity: B

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Quinacridone Scarlet Pigment (PR209). Organic pigment. Very transparent. High tinting strength. Excellent Lightfastness. High oil absorption with slow drying rate. Requires wetting agent. Suitable for all media. Developed in the 1950's. Toxicity A/B. Learn More

PB29

Ultramarine Blue Dark is an artificial mineral pigment that is produced by heating clay, soda, sulphur and coal to high temperatures. Its name comes from outremer, or over-the-sea, as a reference to the highly-prized Lapis Lazuli pigment which had been imported into Europe from Afghanistan since the Middle Ages. First manufactured in France and Germany in 1828, synthetic Ultramarine provided a brilliant and affordable blue to artists, and it remains one of the most popular blues on artists' palettes today.

It is a transparent pigment, with a high tinting strength and excellent lightfastness. It reacts to alkali, therefore it is not suitable for use in lime-fresco; we do offer a Limeproof Ultramarine Blue for this purpose. It is stable in all other media, although it can be tricky to grind in oil. Instead of creating a thick, buttery paste, it can remain stringy and deteriorate when stored in a tube. To correct this, many commercial paint manufacturers include additives and waxes in their recipes; if you intend on grinding your own paint, you could try replacing 10-15% of your Linseed Oil with Poppy Oil to improve the consistency. Ultramine Blue provides a slow-drying, fairly hard paint film, which can tend towards brittleness.

Toxicity: B

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PBr7

Raw Umber is a natural earth pigment composed of iron oxide, manganese, and aluminium silicate. It has its roots in the Umbria region of Italy, and was historically a popular colour for underpaintings, as it dries very quickly. It is semi-opaque, very lightfast, and stable in all media but may be difficult to disperse in acrylic. It requires a large amount of liquid when mixed with oil.

Toxicity: B

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PV16

Manganese Violet is a synthetic organic pigment, discovered in Germany in 1868 and formed by combining manganese chloride, phosphoric acid and ammonium carbonate. It is very lightfast, but sensitive to alkalis and oils. It is semi-opaque and fast-drying, with a low tinting strength and low absorption of oil. 

Toxicity: C

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PR106

Cinnabar, composed of mercuric sulphide, is a mineral pigment found in crusts or veins in sites of volcanic activity. It has good tinting strength and opacity but, like many red pigments, it dries very slowly in oil media. Due to its high toxicity, it is no longer an ingredient in commercial paints, but is a prominent colour in historical palettes.

Generally, Cinnabar refers to the natural mineral, while Vermilion refers to the synthetic pigment. Cinnabar has been mined since at least the tenth millennium BC, and used as a painting material, gemstone, and ritual object by many cultures around the globe. Toxicity D.

Larger sizes available on request.

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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. 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. 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! Learn More

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. 

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PBr7

Raw Sienna is a natural earth pigment that dates back to antiquity. Our Raw Sienna comes from areas of Tuscany where the earth has been coloured by iron-rich minerals. It provides a good tinting strength, excellent lightfastness, and a fast to medium drying rate in oil. It is stable in all media but, like umber pigments, can be difficult to disperse in an acrylic binder. It is similar in composition to Yellow Ochre, but whereas Yellow Ochre contains a higher proportion of clay, Raw Sienna contains a higher proportion of silica. As a natural material, the exact colour and qualities of the resultant pigments can vary, but generally this difference creates a paler, more opaque Yellow Ochre, and a darker, more transparent Raw Sienna.

Toxicity: B

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PG19

Cobalt Green is a synthetic pigment that consists of compounds of cobalt and zinc oxides. It is sometimes referred to as Rinman's Green, after the Swedish chemist who discovered it in the late-18th century. It is a permanent, opaque colour, with a weak tinting strength. It dries quite quickly in oil, requiring a high oil content and  forming a hard, fairly fleixible paint film. Cobalt Green is available in light and dark shades; the colour is determined by the amount of zinc oxide present.

Toxicity: B

Please note, unfortunately we are not able to send this product outside the UK.

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Titanium White, or Titanium Doixide, is an artificial mineral pigment introduced in the 1920s. It is valued for its opacity, good lightfastness, and stability in all media. Its high tinting strength can render it a dominant colour in mixtures. It is very slow drying in oil, and creates a somewhat brittle paint film, though more flexible than Zinc White. Its brightness makes it a popular addition to gesso.

Toxicity: B

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