Window that sticks when i roll up/down in van?

Question

The motor is running fine on the windows. But insid what im going to call the weather stripping for lack of a better name... the rubber has worn thin. It gets stuck on those bald spots and i have to use my hand to force it down. I tried spraying goo gone in the crease to make it smoother. It worked for one day. I need some sort of silicone or grease to help it run smoother. But i need something that wont smudge or smerk up the glass any suggestions?

Answer 1

I would recommend use a heavy duty silicon spray if you do not want to replace the seal