Grumbacher Oil Painting Medium II, Slow Dry, 2.5 oz.

This oil painting medium is ideal for use when you wish to slow the drying time of your paints; it is especially useful for wet-in-wet techniques. It imparts a high gloss to when dry. Add directly to your oil paint in small amounts and only dilute with turpentine or Grumtine.Petroleum based solvents and odorless paint thinners are not compatible with this product, Use in a well ventilated area.