A paint medium and method of its production comprising pre-determined ratios of linseed oil and calcium carbonate combined by kneading in a malleable mixing unit capable of an air airtight seal and removing excess air from the combined mixture. The ratios of the components vary depending on whether or not the linseed oil is refined or unrefined, polymerized or un-polymerized, and if polymerized, whether polymerization was naturally induced or un-naturally induced.