How to clean rubber and plastic parts with sticky, thick teflon-based lube stains? I once lubed inside a Grip Shifter with Finish Line teflon lube, and used that for a long time.

Now I disassembled everything, and the outer rubber part is quite stained and sticky.

I tried to brush the teflon aside with water and soap, and even a mild degreaser, but since teflon is not exactely grease, I just spread the stains even more.

So, question is: Which substance / method should I use to clean that?
Try Dawn Dish soap its a little bit of scrubbing but it seems to work the best, its chem resistant so everything I have tried only makes it more sticky but dish soap hot water and work gets rid of it the best.  Good Luck