Mk4 golf roof spoiler

[stichill99]

I have an ABT roof spoiler which was bonded on my last car and I removed it with cutting wire but it is slightly damaged in a few areas. I was wondering if anybody could reccomend a product to fill holes on it. The spoiler is made from PUR (polyurethane). I was considering JB plastic weld but wonder if anything more suitable!

[Belle427]

Damaged in areas that are visible ie are you going to be rubbing down and painting afterwards?
A picture may help.