Nu-Calgon - Evap Foam-No Rinse® is a high performance, heavy duty detergent, specifically formulated with special surfactants and alkaline cleaners that have been developed into a foaming, no-rinse product. The aerosol product can be sprayed either right side up or upside down, and is ideal for use on most coils, but particularly suited for cooling or evaporator coils. Evap Foam will liquefy dirt, grease, oil and other residues quickly and easily. Since it is fortified with corrosion inhibitors, it is safe for use on metals and other materials. The product's fast-breaking foam is completely self-rinsing. Simply spray Evap Foam on the coil and the foam will wash the emulsified matter off. The aerosol product is NSF registered for use as a coil cleaner in and around food processing areas, and helps leave the area deodorized with a pleasant lemon scent.