Non-painted gloss black parts - any tricks or finishes to stop them scratching easily

[pauly1]

As I was reassembling SpyderDeb's '23 F3-L after a full body paint, I noticed that the nacelle around the gauge cluster and front speakers, as well as the covers over the rear speaker covers, are not painted. Rather, they are as-molded plastic: ABS/PC in a high-shine, diamond polished mold will yield that surface. But they scratch just looking at it.

Anyone have any tricks or finishes they apply to make those pieces more scratch resistant? Detailing sprays and elixirs don't seem to have the "body".

Wayne

Ps: The front glove box lid (over the gauge cluster) is also in the same situation.