Odourless Mineral Solvent. Thin your oils and additives without harsh fumes using Odourless Mineral Solvent. Use this high quality solvent to dilute oil colours, speed up drying times and clean oil painting equipment. Evaporating quickly, this oil leaves no traces after drying. A low toxicity and odour product, it’s suitable for artists who are sensitive to the smell of solvents. Like rectified Turpentine oil, this oil can be used to make your painting medium.