StudioSolv is a purified, odor-free oil-thinning medium. It's Designed to thin oils and mediums while maintaining the integrity of your color. Add sparingly to your oil paints, and experiment with different ratios to find the consistency you prefer. Although aromatic solvents have been extracted to remove odor, adequate ventilation should be practiced for safety. InstaVar by Tusc & Pine enriches the colors in your Painting under a protective, even sheen. The nearly odorless, crystal-clear varnish does not yellow with age. Once your painting is dry to the touch, preserve it by brushing on a thin layer of InstaVar. You will instantly notice that your colors have a brilliance and depth of color they didn't have before. The InstaVar and StudioSolv hav a flashpoints of 144°F which are classified as a combustible liquid by DOT regulations, however, it is considered safer than varnishes or flammable solvents with lower flashpoints; InstaVar also conforms to FAA and TSA guidelines and can be safely transported by airplane, making it a convenient option for artists who travel; The 3.4 oz bottle is the perfect carry-on size, while larger sizes can be packed in your checked bag. The DaVinci Air Tight Stainless Steel Brush Washer holds 500ml of fluid. The removable interior cleaning grate helps loosen paint and keeps clean solvent above its holes so you can constantly reuse it. The specially outfitted gasket on the lid is solvent resistant to keep an airtight seal no matter what cleaning agent you use.