This painting medium speeds the drying of oil paints, yields a satin finish and contains very little turpentine. Finishes from gloss to satin and help to maintain the brilliance of your colors as it is manufactured with a higher grade alkyd resin that yellows little over time.
Alkyd medium can be diluted with 1/3 of its volume of solvent when painting the initial layer of an oil painting: Reduce the amount of solvent as you'll paint the following layers to respect the principle of fat over lean.