BIG GUY is a thick, white clinging foam that cleans heating and cooling fins and coils. This water flushable degreaser clings to vertical, horizontal, and underside surfaces. Packed in a convenient, easy to carry, ready-to-use aerosol container, it's strong directional spray penetrates hard to reach places. BIG GUY has a pleasant citrus scent with no chemical odor. It's non flammable formulation biodegrades rapidly and is Environmentally Safe. It does NOT contain chlorinated solvents or petroleum distillates.