urathane question(s)

i bought an 01 Explorer front bumper cover to put on my 95 Splash. the bumper cover is urathane and needs some sanding to get done since it fell out the back of my buddys truck when we were taking it back to my house. its scratched up a lil and requires work like some sanding and some body filler. can you use body filler on urathane? if not what do you recommend?

is it a paintable one or has texture?

its the smooth one

we use dolphin glaze at work. as long as the scractches aint to deep. also i wouldnt use less than 180 grit sand paper to sand on it.

theres a few places that are kinda deep