[modern] Cam Cover

The Cam cover on my X300 is different that those on XJ40’s. It is smooth,
more like the 3.8 XKE engine, rather than with the fins as in the 4.2 XKE,
XJ6, and later AJ6 engine.

The paint or whatever coating that was used on my cover is beginning to chip
a bit. I was wondering if anyone has had any experience with re-finishing
the cam cover on an X300 with the AJ16 engine. What material is made of?
Could it be polished to a bright finish? What type of paint should be used
to re-finish it? What would be the best method to remove the original

Look forward to your reply.