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 Odourless Solvent

A general purpose, low toxicity solvent which may be used as a replacement to gum and mineral turpentine for thinning paint and cleaning brushes.

reference: www.chromaonline.com