Left - Fumed Silica Gel mixed with linseed oil Second from Left - Red Iron Oxide mixed with linseed Second from Right - Red Iron Oxide mixed with Fumed Silica Gel Far Right - Fumed Silica Gel dry There are basically two ways to paint with oil paints. One is oil only, and the other is using solvents. These days many people are … [Read more...] about Fumed Silica Gel Stays Where You Put It