When my plane was about to turn one year old, I was unable to clean the grease on the fuselage floor myself due to business trips, so I left my supply of this material with the mechanic. I came back from the trip and found him happy and excited: "The thing is great! Simply spray on and wipe off! We bought a few of these. "And it's non-toxic and leaves a waxy residue. (Last year I used a store-bought degreaser (Totally Awesome in LA) on the underside of the hull, and that evening I had a fever, followed by an itchy rash for about a week.