Gamblin Solvent-free mediums are true to historic working properties, but are a safer and more permanent option. Gamblin Solvent-Free Gel gives colors more flow and transparency and has a moderately fast drying rate. Made from safflower oil and alkyd resin, in contains to Gamsol or petroleum byproducts in its formula. Increase gloss and hold the shape of your brush marks, without the noxious fumes of traditional oil mediums. This gel supports a wide range of painting techniques and allows you to maintain the best color, drying time and texture. Because it is solvent-free with a high flashpoint, it may be transported on commercial flights; convenient for traveling artists. Use no more than 25% Solvent Free Gel when mixing with with Gamblin oil colors and apply mixture thinly to ensure proper drying and avoid wrinkling.