Search results for 'varnishes'

Judea bitumen, essence of turpentine, wax. Quick drying with transparent velvety finish. Apply cold with a supple brush. Learn More

Lefranc Cracking Varnish Learn More

Roberson Liquid Metals have a rich deep colour, ideal for a wide range of applications including plaster, wood, paper & canvas. The Liquid Metal range does not tarnish and does not need to be varnished. All colours are intermixable and water wash up. Learn More

Linseed Oil is derived from flax seeds, and appears on our shelves in many guises: Cold Pressed, Refined, Stand Oil, and as a key ingredient in many mediums. It has been appreciated for its drying properties since the Medieval period, and has become the most popular oil used in painting today due to the strong, flexible and glossy film that it creates.

Alkali Refined Linseed Oil has been treated to reduce its acidity, and is a useful ingredient in mediums and varnishes.

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Shellac is a natural resin that is deposited by the female lac insect on the branches of trees in India and Thailand. It is soluble with alcohol, but not with mineral spirits or turpentine. It forms a tough yet flexible film, with many applications. It is suitable as a top coat for gilding when applied thinly, a sealant for porous surfaces, an isolating layer for tempera paintings, a base for pigmented inks, a protective layer for collograph plates, and a warm varnish for wooden floors and furniture. As it is prone to darkening with age, it is not recommended as a varnish for oils, and its solubility can reduce over time. There are various grades of shellac. When mixed with alcohol, it may initially form a cloudy mixture, due to traces of wax in the shellac, but this should become clear once it has dried. The highest grades of shellac are Clear Dewaxed Shellac, which has been de-coloured using the carbon filtering method, Lemon Shellac, and Orange Shellac, which are pale in colour. Button Shellac is less refined and therefore produces a reddish varnish. It was, in fact, widely used as a red dye before synthetic dyes became available. Learn More

Lily bristle brush for dragging or varnish walls and large surfaces. Learn More

Zest-It Oil Painting Medium improves the flow of oil paint and reduces brush strokes. It is suitable for wet-on-wet techniques, especially suitable for blending and glazing without using varnish. Learn More

Used in etching grounds and stopping out varnishes. Can be used as a blackish brown colourant but when combined with oil causes wrinkling and cracking. Learn More

Roberson Liquid Metals have a rich deep colour, ideal for a wide range of applications including plaster, wood, paper & canvas. The Liquid Metal range does not tarnish and does not need to be varnished. All colours are inter-mixable. This is a double sided and hand painted colour chart of the full range. Learn More

Varnish (Black Dark) Meths based quick drying stopping out varnish, two coats may be needed for a good acid resist. Learn More

Roberson Liquid Metals have a rich deep colour, ideal for a wide range of applications including plaster, wood, paper & canvas. The Liquid Metal range does not tarnish and does not need to be varnished. All colours are intermixable and water wash up. Learn More

Gamboge is a natural tree resin, 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. It is highly transparent, fugitive to light, with a weak tinting strength. The powder can be dissolved in alcohol to colour resin-based varnishes.

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

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From the Winsor & Newton website: A quick drying, semi-gloss medium which thickens slowly and extends tube colour retaining crisp textures brush marks without any visible levelling. Speeds drying (touch dry in 1-6 days depending on colour and film thickness). Resists yellowing. Not suitable as a varnish or final coat.

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Light brown, extra smooth and soft synthetic hair with black polished handle, tin ferrule. 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.

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Acrylic resin/quick drying petroleum/rectified turpentine. Highly flexible with good resistance to blooming. Gloss finish. Learn More

Very fast drying, light varnish for retouching and restoration. Moderately shiny, does not yellow (Ketonic resin 22% and White Spirit). Learn More

Ideal for making oil paints, mediums and varnishes more fluid, and for cleaning painting equipment. It also removes stains. Learn More

PW1

Flake White Pigment, sometimes referred to as Lead White or Cremnitz White, is an artificial mineral pigment, lead carbonate. It is no longer available as a paint, due to its extreme toxicity. For this reason, great care must be taken when handling the dry pigment.

It is not usuable in water-based media, but works well in oils. It creates a flexible paint film that dries quickly. Although opaque, small quantities do not dominate mixtures, and can help slow-drying pigments to dry. For this reason, it has been a popular mixing white historically; in fact, until the mid-19th century, Flake White was the only white pigment available to artists. Although varnishing is generally considered optional for oil paintings, it is recommended for works containing Flake White, as contact with sulphur in the atmosphere can cause it to blacken. It creates a warm white, which can yellow over time when mixed with linseed oil.

Toxicity: D

Permitted uses: Restoration of art works and protected buildings when alternatives unsuitable.

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Reversible - for conservation use only. Learn More