5 Star Foam™ rates as the absolute finest foaming cleaner in the industry! 5 Star Foam is for use on interior smudge marks, nicotine stains, oily fingerprints and food stains. On aircraft exteriors, 5 Star Foam will effectively clean carbon exhaust, oil and bugs. It can also be used on vinyl, leatherette, plastic, sinks, enameled, varnished and similar surfaces. 5 Star Foam was designed specially for hard to remove grease and soil unaffected by other cleaners. Its clinging foam permits long-lasting contact with irregular, as well as plain, surfaces to be cleaned. Its high pressure spray enables it to reach hard-to-get-to trouble spots.