This is a an extremely flammable liquid with an ether-like odor. This product comes in a variety of colors. Inhalation over exposure to the vapors of this product can cause central nervous system effects (including dizziness, drowsiness, nausea and headaches) This product can be mildly to severely irritating to the y eyes, skin and other contaminated tissues.

Vapors of this product are heavier than air and may travel to a source of ignition and flashback to a leak or open container. Tetrahydrofuran, a component of this product, is known to form explosive peroxides under certain circumstances.