There is no before and after really Emz ...you wash and clean your bike first ...put this stuff on ...Ride it through winter "well some of us ...no names mentioned" and come spring wash it off and bike is none the worst ...... Simples
it stays as a flexible coat on the bike .. I do the undercarriage of my bike ..bottom of rad where spray from front wheel gets too all electrics and swing arm and wheels ... NOT to be put on disks or pads ... Bike still looks ok ....