My touchpad coating is wearing off, how do I replace it?

My touchpad coating is wearing off, how do I replace it?

Hello fellow techs, I have an Alienware 14 I got in 2014 that's had no problems till now. There seems to be a coating of some sort on the touchpad that has recently started to scratch off. I'm away that I could replace the entire touchpad surface, but I was wondering if there is a way to reapply the coating that covers the touchpad sensor. Any insights?