Art Spectrum Painting Medium No 1 Varnishing Watercolours Blog Matisse Gessoes contain Calcite grounds

Matisse Gessoes contain Calcite grounds (calcium carbonate) which help to protect canvas from destructive gases given off by oil paints over their life-span

Adjust ratio to achieve the required viscosity

Recommended when applying rust or verdigris finishes in exterior applications to prevent changes in the patinated finish when exposed to rain over extended periods of time

Surface Preparation Medium Texture: Fluid Sheen: Matte Relative Opacity: Opaque Application

Made from a blend of natural citrus extracts

Art Spectrum Painting Medium No 1 Varnishing Watercolours Blog Matisse Gessoes contain Calcite groundsThe leanest medium. Ready to use straight from the container. Dries overnight, depending on climate and thickness of paint application. Often an excessive amount of gum turpentine is used as a substitute for a 'lean' medium. Too much gum turpentine 'denatures' the oil paint in these lean layers. This leaves an underbound pigment when the paint dries which weakens the bond between the oil paint and the canvas. Art Spectrum Medium No. 1 contains a