Search results for 'rco and 1 1 0'

Made from the highest quality Siberian Kolinsky sable. Golden ferrule with short black polished hexagonal handle. Round watercolour brush. Learn More

High quality Kolinsky sable with good spring and pointing characteristics. Very useful for detailed work. Learn More

Extra short haired brush for the discerning miniaturist. Learn More

Short haired pure sable brush fo extra control and strength while spotting and retouching. Learn More

Casein is a protein derived from dried milk, which has been used in painting since ancient times. It can be combined with Ammonium Carbonate to form an emulsion, which acts as a durable, non-resoluble binder for pigments, producing a matte, fast-drying paint, similar in appearance to egg tempera. We use casein as a binder for our L. Cornelissen & Son Pigment Colour Charts, as it is a medium that clearly showcases the characteristics and behaviour of each pigment in its pure form. Casein paints can be applied in thin layers to watercolour paper, but would require a more rigid support, such as a gesso panel, to be applied thickly, as the comparative inflexibility of the paint layer means that it can be prone to cracking. Subsequent layers of paint should be more diluted to aid adhesion, and impasto effects are not recommended. It is possible to varnish casein paintings using an acrylic or damar varnish to obtain a glossy surface if desired, although this is not a necessary step. Casein can also be used as an ingredient in gesso, and is a suitable binder for fresco secco techniques.

Some pigments may require a wetting agent in order to fully disperse within the binder, in which case alcohol may be used.

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. 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

English Willow Charcoal Learn More

18 pages of fine-grained watercolour paper with internal and surface sizing, folded in an accordion style. Learn More

Dimensions: 22.5 x 120 x 23 cm Learn More

Empty Watercolour Pans Learn More

High quality Kolinsky sable with good spring and pointing characteristics. Very useful for detailed work. Learn More

This travelling watercolour case includes a spiral-bound A6 sketchbook, which is easily refillable. The case is compatible with a standard watercolour tin of twelve half-pans (not included). All of our leather goods are handmade in Spain, and dyed with natural dyes that will fade and age beautifully over time. Please see below to order this in red, green or tan brown, or ring our office to enquire about additional colours that we may have available. Learn More

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

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 specifically used this name in the late-Middle Ages, as the presence of Cobalt ore in the mines made the extraction of silver very difficult. They were possibly aware of the toxic properties of the mineral 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

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

Learn More

This unbranded watercolour metal box is the same as the lightweight metal boxes used by most of the major European colour-makers. The back of the box includes a thumb ring. Dimensions: 12.6 x 7 x 1.8cm Learn More

Made according to traditional Japanese methods. The excellent water-holding capacity of soft goat hair bristles combined with the absence of metal parts make Hake brushes ideal for applying glazes on ceramics and for creating broad washes in watercolour painting. 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

Extra soft brush for varnishing or lacquering. Also useful for watercolour washes. Learn More

Soft but springy hair. For varnishing or lacquering. Also useful for watercolour washes. Learn More

Made from the highest quality Siberian Kolinsky sable. Golden ferrule with short black polished hexagonal handle. Flat. Learn More

Traditional high quality soft hair mops with considerable colour carrying capacity. Useful for laying down large washes. Also used by gilders for tamping down gold leaf and for dusting. Learn More

Cornelissen Watercolour Empty Boxes. Please note that the empty pans are sold separately. Learn More

Pure red sable brushes with a high colour holding capacity enabling free flow of colour. The fine edge of this brush provides defined clean cut lines. 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.

Learn More

Shell gold, so named because it was historically made and stored in a shallow shell such as a mussel shell, consists of finely powdered genuine gold mixed with a variety of gums. It is mixed with a bit of water and applied in the same way as watercolour. After drying for an hour or so, it can be burnished to a soft, beautiful lustre using an agate stone burnishing tool.
Our Shell gold is used by calligraphers, framers, restorers, iconographers and watercolour artists.
In recent years our colour range of genuine gold has been extended and genuine Lapis Lazuli and genuine Malachite have also been added. Learn More

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.

Learn More

A glass slab with wooden cradle for the grinding of pigments.

The friction created between the sand-blasted surfaces of the glass slab and muller facilitates the thorough mixing of pigment and medium, creating a consistent and strong paint body. This slab can be used to manufacture many types of paint including watercolours, egg tempera and oils.

Mulling is of particular importance when making oil paint; simply mixing pigment and oil together using a palette knife will result in an unstable substance with poor plasticity, which contains a large amount of excess oil and unevenly distributed pigment particles. Thorough mulling in a figure-of-eight motion will enable the pigment to be fully combined into the binder, strengthening the resultant paint film.

PLEASE NOTE: The separate glass slabs are in stock but it is a call to order item due to the fact that we cannot guarantee its safe delivery, however well we package it. Please ring us to discuss your delivery options. In combination with the glass frame, delivery is more secure but we still cannot guarantee a delivery without breakage.

Learn More

Metalpoint Wire, sold as individual pieces, 2 inches long Learn More