Search results for 'paper watercolour'

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.

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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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Cornelissen Lithography Sponge, Compressed. Designed to keep the litho stone wet during printing. It can be used for preparing printmaking or watercolour paper. 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

LIMITED EDITION Cornelissen Watercolour Gift Set contains : -Arches Watercolour Block 20 x 20 cm -Schmincke Watercolour Set with Brush, 12 half pans -Genuine Leather Cornelissen Watercolour Case. Available in green, red, tan and black, while stocks last. Gift wrapped in a box with Cornelissen wrapping paper. To specify the colour of the Leather Watercolour Case (green, red, tan or black) and the Arches Watercolour paper surface (Hot Pressed, Cold Pressed or Rough), please contact us directly. t: 0207 636 1045 e: info@cornelissen.com. Learn More

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