Archival Odourless Mediums and Solvents are based on fast drying alkyd resins which out perform ‘traditional’ mediums and are better for health. They evaporate much more slowly than turpentines so that very little vapour is generated during a painting session.

Archival Classic Medium

Alkyd Based - Slow Drying

A very slow drying medium ideal for thinning paint while maintaining a rich, luminous finish when dry. Gives a long manipulation time for over painting and great control for detail. Ideal for glazing techniques, painting wet-in-wet and for artists who desire a full days working ability. It feels oily, but dries with a low sheen in 24 hours.

reference: www.chromaonline.com