Originally Posted by
cyccommute
Yes but that step can be skipped. I’m not a fan of fishing small bits of plastic out of the tire on the next flat so I remove the plastic but nothing is harmed by leaving it in place.
This is good to know. Removing the plastic has the risk of peeling the patch up. I am now good at it, but I have to be careful. Waiting until the patch has worked in an inflated tire makes it easier.