The Old Fashioned Milk Paint Co. SafePaint has the properties of the companys original milk paint, but is suitable for non-porous surfaces and offers a more uniform look over large areas. Made with milk protein, lime, clay, and earth pigments, the interior wall paint is solvent-free, contains zero VOCs, and is biodegradable. SafePaint is available in 20 colors. 978.448.6336. www.milkpaint.com.