Search results for 'de 18'

These sturdy wooden bridges provide a support for your hand, allowing you to add details to drawings, paintings, gilded surfaces and calligraphy without smudging your work. They are made by hand in the UK, meaning that our supply of different woods can vary, so please give us a call or send us an email if you would like to know what we have available.

Woods may include: American Walnut; American Oak; American Cherry; Ash; Burr Elm; Brown Oak; Elm; Oak; Ripple Ash; Spalted Beech; Utile. 

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Branded Stretcher Bars. High quality range of canvas stretcher frames made from laminated pine to minimise warping. All bars have a 1/4 inch lip to raise the canvas away from the wood. Mortised to take cross-bars from 36 inches. Supplied with wedges. *Please note - prices are for individual bars* Learn More

These are useful for bracing a larger frame, and are necessary when one of the dimensions is over 36 inches. Cross bars are notched for overlap from 36 inches, either at the front or back. Please specify which bar arrangement you need. Supplied with wedges. *Please note - prices are for individual bars* Learn More

NY13:75640 Stil de Grain is a natural yellow pigment derived from unripe buckthorn berries, which were also once used to produce sap green pigment before the introduction of synthetic alternatives. Stil de Grain may also be known as brown lake, yellow lake, Persian lake, buckthorn lake, Dutch pink, yellow carmine and Italian pink. It has a weak tinting strength, and is very transparent, especially in oil. When mixed with oil, the pigment becomes saturated, darkening considerably in colour and drying very slowly, whereas in a water-based paint it is appears as a warm yellow. It is very fugitive to light, and compatible with all media, except lime. Larger quantities are available by request. Learn More

Premium quality, extra fine genuine gold precious metal powders handcrafted in Japan by experienced craftsmen, all 1 gram in weight. By crushing gold leaves finely and mixing them with melted glue, a paste is obtained, broken into pieces and transformed into powder, called « Kindei » Gold Powder. First, the 0,2 micron gold leaves are crushed into 3 microns pieces. Afterwards, the glue is washed out with water and dried. The powder obtained is as smooth and fine as flour.

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Cornelissen Gold Powder 1 gram Vert Fonce. *While stocks last. Learn More

Green Gold Leaf 18 ct, 80 x 80 mm. Book of 25 leaves. Coverage per book is 0.16 m2 (1.69 sq. feet) Learn More

Standard Stretcher Bars. These light duty stretcher bars are made of laminated pine and have a slight lip that keeps the canvas away from the inside edge of the bar. These bars have a maximum size of 22 inches and do not come with cross bars. Supplied with wedges. *Please note - prices are for individual bars* Learn More

NR9

Madder Lake pigment is derived from dye that has been extracted from the root of the madder plant, and attached to alum as a base. It has largely been replaced by synthetic alizarin pigments, but it is still used as an ingredient in some commercially-available paints. It provides a very transparent pigment, with a weak tinting strength, which can be used in all lime-free media, although it is very slow-drying in oil. It is fugitive to sunlight, so paintings containing Madder should be stored appropriately, but it remains one of the most lightfast plant-based pigments. It requires a wetting agent to aid dispersion.

Larger quantities are available by request

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NR9

The madder plant was once widely cultivated for the red dye extracted from its roots. Its earliest known use is in ancient Egypt, and there is evidence of its widespread adoption in Europe from the medieval period. Madder Lake, the pigment that is derived from the root, has now largely been replaced by synthetic alizarin pigments, but it is still used as an ingredient in some commercial paints. It provides a very transparent pigment, with a weak tinting strength, which can be used in all lime-free media, although it is very slow-drying in oil. It is fugitive to sunlight, so paintings containing Madder should be stored appropriately, but it remains one of the most lightfast plant-based pigments. 

Larger quantities are available by request.

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PY43 Golden Ochre is a natural earth pigment, somewhat darker than Yellow Ochre. It is a semi-transparent, lightfast pigment, that is stable in all media. It has a medium to slow drying rate in oil, creating a tough, flexible paint film. Toxicity: B Limeproof Learn More

NR9 Rose Madder is an alizarin lake pigment made by precipitating dye extracted from madder root onto an inert base. It has largely been replaced by synthetic alizarin pigments, but it is still used as an ingredient in some commercially-available paints. It provides a very transparent pigment, with a weak tinting strength, which can be used in all lime-free media, although it is very slow-drying in oil. It is fugitive to sunlight, so paintings containing Madder should be stored appropriately, but it remains one of the most lightfast plant-based pigments. It requires a wetting agent to aid dispersion. Larger quantities are available by request Learn More

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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PR108

Cadmium Red Deep is a synthetic organic pigment, which has been in use since the 1920s, effectively replacing vermilion. It is formed by heating cadmium sulphide and selenium, the hue is determined by the level of calcination and proportion of selenium. It is very opaque, and lightfast, with a high tinting strength. It absorbs a small amount of oil, and dries very slowly to form a hard, flexible paint film.

Larger quantities are available by request.  

Limeproof

Toxicity: C

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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 a naturally occurring material sourced from Sri Lanka.

Toxicity: A/B

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Chromium Oxide is a synthetic mixed-metal oxide pigment. It is stable in all media and has an average drying speed in oil, forming a hard, fairly flexible paint film. It is opaque, with a low tinting strength. It has been widely available since the mid-nineteenth century, following its introduction in 1809.

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

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Gamboge is a natural tree resin, generally extracted by tapping of Garcinia trees, available as a powder and in the solid "pipe" form. One of the unique features of Pipe Gamboge is that it does not require a binding agent to be used as a paint. Instead, colour can be lifted with a wet brush, as from a watercolour pan. When used as a water colour, it gives a bright transparent golden yellow colour. It is highly transparent, fugitive to light, with a weak tinting strength. The powder can be dissolved in alcohol to colour resin-based varnishes. Gamboge was used from ancient times to dye the clothes and also to make a transparent yellow varnish for the colouring of wood, metals and leather.

Pipe Gamboge is available while stocks last. Larger quantities are available by request.

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Translucent Yellow Oxide (PY42). Artificial mineral pigment, hydrated ferric oxides. Transparent and very lightfast. Stable in all media, medium drying rate in oil. Toxicity B. Learn More

Highest quality 18,12ct gold leaf from Japan. Leaves measure 109×109mm and are approximately 0.1μ～0.2μ in thickness. These Tachikiri (contemporary) leaves are beaten in between glassine paper which leaves a much softer impression on the surface of each leaf, resulting in a slightly shinier finish than the more traditional Enzuke gold leaf. Each pack contains 10 leaves. Learn More

Translucent Red Oxide (PR101). Artificial mineral pigment, hydrated ferric oxides. Transparent and very lightfast. Stable in all media, medium drying rate in oil. Toxicity B. Learn More

Translucent Orange Oxide (PR101). Artificial mineral pigment, hydrated ferric oxides. Transparent and very lightfast. Stable in all media, medium drying rate in oil. Toxicity B. Learn More

Rigid high quality boxes manufactured in clear Polystyrene. Medium and large sizes are ideal for storing loose nibs. Learn More

Caput Mortuum is a transparent, lightfast pigment that is stable in all media. Colours described as Caput Mortuum can vary greatly; our pigment is a soft purple-brown, made from a mixture of natural iron oxides. It is believed that Caput Mortuum has its roots in ancient Egypt, when colour was derived from remains that had been embalmed in asphaltum.

Toxicity B

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Type of print: General Intaglio techniques and Monotype. Plate thickness needs to be no higher than 1mm. YTI18 - Width of roller 18cm, Upper roller diameter 35mm, Lower roller diameter 35mm. YTI26 - Width of roller 25cm, Upper roller diameter 35mm, Lower roller diameter 35mm **please note - blankets not included** Learn More

This card holder holds up to six cards, and is embossed with lettering that reads "L.Cornelissen & Son Est. London 1855". All of our leather goods are handmade in Spain, and dyed with natural dyes that will fade and age beautifully over time. Learn More

Coating Trough, used to coat screens with Photographic Emulsion. Shaped to allow the weight of the coating trough to be supported by the thumb, the palm and all four fingers for a steady and even coat. Features a dual sided coating edge for either a sharp edge thin coat for higher mesh counts, or a rounded dull edge for coating lower mesh count screens. Learn More

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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