Sunnyside Lacquer Thinner is a fast evaporating, extremely flammable organic solvent mixture. It is designed for thinning lacquer and epoxy coatings, and is also recommended for clean up of spray guns and other application equipment General purpose thinner for brushing, dipping,and spraying of nitrocellulose lacquers. When cleaning equipment or when using for any other purpose, prevent flammable vapor buildup by limiting amount used to a few ounces at a time. Vapors are given off rapidly during use and may ignite explosively. Vapors are heavier than air and may travel long distances to ignition sources. Open all doors and windows to provide cross ventilation.