Silicone Grease on Polyurethane
Okay, this is one of the biggest pain in the butt applications I've ever had to clean. Up until now I hadn't found any cleaner that could do it without damaging what the silicone grease was on. Polyurethane bushings need to be pre-greased before assembly with a special silicone based grease that is both sticky and hard to remove. The problem has been once I've gotten it on a painted surface (such as the mounting point on a car body, bracket or the part the bushing is installed in itself), the only solution I had was to try to rub off as much as possible with a dry rag and put up with the sticky film that attracts all kinds of dirt and dust (if I didn't want to damage the paint, plastic, rubber, polyurethane, or whatever other soft surface it was attached to). Click image to enlarge.
Silicone Grease Gone
With GreaseMaster, I've found the most efficient way to get the GreaseMaster/silicone grease amalgam off is to rub off the excess with a dry shop towel, spray the remaining residue with GreaseMaster at 2:1 and start rubbing with a clean part of the towel. Keep changing to a clean part of the towel as soon as the silicone grease builds up and starts to smear. After the GreaseMaster and grease is rubbed off, I hit the bushing (or other surface) once more just to make sure I get it all off and, viola, a clean bushing. It also works exceptionally well (if not better) on the body mounts. Click image to enlarge.