Gamblin Artist Oil Paints are high quality artist grade oils. (Shop Gamblin Oils) There are many different ways to work oil paint. One technique is called "Oiling Out" Some oil paint colours become very shiny as they dry; others dry with more of a matte finish. Sometimes, it becomes necessary to paint over an area that is matte, but the fresh paint will be shiny, and matching chiny colours to matte colour isn't easy. Oiling out makes the dry, matte paint shiny again, so precise colour-matching is much easier. In this article published at the Gamblin Artist Color website illustrates the fine points in a great video! (Shop Oil Paints) "Oiling Out" Procedure: 1. Apply a liberal coating of 1:1 Galkyd Painting Medium and Gamsol Odorless Mineral Spirits to a dry painting. This can be applied to the entire painting or just to the area that needs to be enlivened. 2. Allow the medium to be absorbed into the painting for approximately two minutes. 3. Wipe off the excess painting medium with a soft, lint-free cloth. 4. Continue painting.
For Oil Paint Mediums for oil paints are made from mixtures of separate products with which an artist plays (often in capped bottles as shown below) to develop his/her own recipe. For example, a traditional medium mixture is one part Damar varnish, one part stand oil, five parts turpentine and a few drops cobalt or Japan drier. Mediums may also be bought in pre-made mixtures. Commercially made mediums can vary as much as home-spun recipes. Whether homemade or store-bought, mediums can be placed in a lidded glass jar and reused for many painting sessions.