Chemguard Blizzard is a specially formulated, aqueous film forming foam solution. A vapor suppressing aqueous film is formed by the foam solution draining from the expanded foam blanket. Do not proportion. It is intended for use on Class B hydrocarbon type fuels such as gasoline, kerosene, diesel, etc. Chemguard Blizzard is not intended for use on fuels, which are polar solvent/water miscible such as alcohols, ketones, esters, etc.