C Roberson Cold Pressed Linseed Oil is a fine-quality oil that reduces the consistency of oil colour and increases the gloss and transparency. A pale amber colour, it dries more slowly than refined linseed oil, taking up to four days, and to a glossier and harder finish. C Roberson Cold Pressed Linseed Oil also produces excellent results when used for grinding pigments. UK shipping by road only. Not available for International or Northern Ireland delivery.