Hey guys, I'm looking to find the best and safest way to clean off the rubber from my rear quarters. Not sure how it gets there, but this time it was quite sticky and well attached. The usual soapy mix took ages to remove most of it, but a reasonable amount will not budge. I tried some CRC 556, but that just smeared the paint a bit, so I wiped that off. What do you guy use? And what thoughts for making this easier in future? I have heard some people use a plastic film....not sure if that is like a temporary and frequently removed film, or if it is like stone-guard for the nose of a car. Any help or thoughts appreciated.