Rear spoiler on my MG4 SE has become dull and watermarked - any remedies recommended?

[Mchooligan]

Rear spoiler on my MG4 SE has become dull and watermarked - any remedies recommended?

 

[MG4JP]

@Mchooligan

This post on FB caught my attention the other day. I haven't tried it myself, but you might want to give it a try.

You'll most likely need to join the group first, in order to see the post, but here's an image of it:

 

[Alb]

Try using some Clay Bar.

 

[Mchooligan]

Try using some Clay Bar.

Thanks, I will.