Search results for 'rco and x y'

Japanese shell gold in ceramic pans.

Shell gold, so named because it was historically made and stored in shallow shells such as mussel shells, consists of finely powdered genuine gold mixed with a variety of gums. This Japanese shell gold range is made using the highest quality handmade Japanese gold and precious metal powders bound with Nikawa gelatine glue.

Mix with a bit of water and apply in the same way as watercolour (a drop of oxgall can be added to break the surface tension) After drying, it can be burnished to a soft, beautiful lustre using an agate stone burnishing tool.
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Cornelissen Series 1855 Sable Brush Size 12. The box contain 1 x Artists' Quality Kolinsky Sable watercolour Brush and a brush soap. Learn More

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

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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Drawing gum for masking specific areas which should remain white on water-colour paper, smooth drawing carton, photographs or films. For direct application with the dispensing bottle. Contains: synthetic resin dispersion without ammonia. Learn More

PB28

Cobalt Blue is an artificial mineral pigment, produced by the calcination of cobalt oxide and aluminium oxide. It has been widely used since the early 1800s, following its discovery by the French chemist Thenard at the beginning of the century. The name Cobalt has its roots in the German word Kobold, meaning imp or evil spirit. German miners named it to in the late-Middle Ages, as the presence of cobalt ore in the mines made the extraction of silver more difficult. They were possibly also aware of the toxic properties of the mineral that was frustrating their efforts.

Cobalt remains a very popular colour today, and is present in most ranges of paints, being a semi-transparent pigment that is stable in all media. As a watercolour, all cobalt pigments tend to granulate. As an oil paint, it requires less oil content than most other pigments, and dries quite quickly. Like Cerulean Blue, some artists may choose to bind it with poppy oil, to avoid any possible colour changes brought about by the yellowish cast of linseed oil and the pigment's weak tinting strength.

Limeproof

Toxicity: C

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Made from organic walnut husks collected in Cambridgeshire, this deep brown walnut ink is made to an 18th-century formula. Small batches of the ink are blended to give the required consistency and strength. It has good permanence, but will eventually fade if left in direct sunlight for sustained periods of time, and is not wholly waterproof, but has some staying power, especially on sized watercolour papers. As with all handmade products derived from natural ingredients, there may be slight variations in the colour and consistency as a result of seasonal changes.

Not Suitable for fountain pens. Learn More

Cobalt Violet Light Pigment (PV14). Synthetic inorganic pigment. Semi-opaque. Weak tinting strength. Excellent Lightfastness. Fast drying rate. Good for oil and watercolour but not acrylic as pigment 'settles out'. Used since early 1900's. This colour cannot be matched through mixing other colours.

Limeproof

Toxicity: C

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

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For removing pencil, charcoal and pastel or paper cleaning. Learn More

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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PB33

Manganese Blue is an articficial mineral pigment, that is prepared by heating sodium sulphate, potassium permanganate and barium nitrate to 750-800 degrees Celcius. It has been produed as a pigment and as a colourant for cement since the 1930s, and is notable for its quick drying time in oils, its high transparency, and its bright, slightly greenish colour. Its weak tinting strength can cause it to be overwhelmed in mixtures, and it has a tendency to granulate as a watercolour. It is no longer used in commercial paints, but many manufacturers offer a Manganese Blue Hue, which is typically based upon Phthalocyanine Blue.   

Production of this pigment has now ceased, due to environmental and health concerns, therefore it is only available while stocks last.

Toxicity: C

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

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Allows 3-D and structural effects. Apply with palette knife. Fine or Coarse texture. Learn More

PR233

Potter's Pink is an artificial mineral pigment produced by roasting tin oxide with various other oxides. It was first discovered in the pottery region of Staffordshire in the late-1700s, and in the following century Winsor & Newton introduced Potter's Pink into their watercolour range under the name "pink colour". It went on to become a popular addition to watercolour palettes, offering an opaque, lightfast colour with a weak tinting strength and a medium level of oil absorption.

Toxicity A

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Drawing gum for masking specific areas which should remain white on water-colour paper, smooth drawing carton, photographs or films. Apply with writing pen, cotton bud or wooden stick. Contains: synthetic resin dispersion without ammonia. Learn More

PB15:3

Phthalo (Mona) Blue is a synthetic organic pigment, Copper Phthalocyanine, that has been in use since the 1930s. It has an extremely high tinting strength and is a staining colour, so cannot successfully be lifted in watercolour. It requires a wetting agent to fully disperse into a medium, and, when used at full strength, a copper sheen is visible in dried paint film. It is transparent, very lightfast, and has a medium-to-slow drying rate in oil.

Toxicity: C

While stocks last

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LIMITED EDITION Cornelissen Drawing Gift Set contains: Cornelissen Black Sketchbook 19.5 x 19.5cm £10.70 Cornelissen Genuine Leather Pencil Case. Available in green, red, tan and black, while stocks last. Solid Brass Pencil Sharpener Cornelissen Bundle of Pencils, 2H, 4H, HB, B, 2B, 3B, 4B, 6B Gift wrapped in a box with Cornelissen wrapping paper. To specify the colour of the Leather Pencil Case (green, red, tan or black) please contact us directly. t: 0207 636 1045 e: info@cornelissen.com Learn More

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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Prepared exclusively for Cornelissen following a Medieval English recipe, This handmade ink is produced in Cambridgeshire, from soot harvested from a working 19th-century forge, powered by charcoal and wood. Small batches of ink are blended to give the required consistency and strength. Forge Lamp Black is a thick, smooth non-waterproof ink that has good permanence. It can be watered down, and should always be shaken well before use. As with all handmade products derived from natural ingredients, there may be slight variations in the colour and consistency. Ingredients: Soot, gum Arabic, and clove oil.

Not suitable for fountain pens. Learn More

Schmincke Horadam Naturals Set Plant Resins/Extracts 5 x 15 ml Cucuma Madder Lake Indigofera Dyer's Green Stil de Grain Learn More

Schmincke have combined the unique properties of gouache and watercolour paint in a unique formulation, to create Horadam Naturals. Made using natural earths, plant-based pigments and resins, the resulting high-quality watercolours are environmentally friendly and vegan. The 16 matte colours are semi-/transparent with good lightfastness and can be mixed and combined with all water and gouache colours. Learn More

Schmincke Horadam Naturals Set Earth Pigments 5 x 15 ml Celadonite Yellow Ochre Lalvarit Violet Caucasus Earth Green Slate Learn More

For watercolour painting on paper, ivorine, terracotta, wood and fabric. Sizing not needed. Prevents the running of colours, even on open weave fabrics. Learn More

Gum Arabic is a resoluble binding agent, commonly used in the preparation of watercolours, but also useful as an adhesive, a size, and in the production of soft pastels. It is a natural product, harvested from the Acacia tree between October and May. The highest grade of Gum Arabic comes from the Kordofan region of Sudan. It is exceptionally pale and pure and therefore particularly suited to watercolour painting, while Nigerian Gum Arabic (while stocks last) is better suited to stone lithography and other printmaking techniques. Please see the Formulas & Recipes section on our homepage for a recipe to make your own watercolour paints using Gum Arabic (currently under construction). Learn More

Finest golden synthetic fibre. More springy than Cosmotop Spin making it an excellent brush for watercolour, gouache, acrylic and oil painting. Learn More

Inspired by traditional tailor’s chalk block, prepared for drawing and painting. Water soluble and extremely soft. Learn More

Gum Copal Manila is derived from the resin of a coniferous tree native to the Philippines. It is not to be confused with other copals, which are the product of fossilised plant materials. It can be dissolved in alcohol to make a spirit varnish, to be used as a substitute for shellac, or as a fixative for pastel and charcoal drawings. Please note, that when used as a fixative it may darken the colour of the image. Learn More

Finest golden synthetic fibre. More springy than Cosmotop Spin making it an excellent brush for watercolour, gouache, acrylic and oil painting. Learn More

Inspired by traditional tailor’s chalk block, prepared for drawing and painting. Water soluble and extremely soft, the set contains 6 traditional earth colours: sanguine, sepia, dark brown, brown, ochre and carbon black Learn More

Inspired by traditional tailor’s chalk block, prepared for drawing and painting. Water soluble and extremely soft, choice of 6 traditional earth colours: sanguine, sepia, dark brown, brown, ochre and carbon black. Learn More