Gamblin Solvent-Free Gel is the only solvent-free oil painting medium that supports a broad range of painting techniques with minimal compromise. Made from safflower oil and alkyd resin, Gamblin Solvent-Free Gel is non-toxic and contains no Gamsol or petroleum distillates. Solvent-Free Gel gives colors more flow and transparency, yet holds the shape of your brushmark. Solvent-Free Gel has a moderately fast drying rate and increases gloss. Gamblin Solvent-Free Gel has a very high flashpoint, so it is permissible for air travel.