[kmanuele]

After a few builds, using a couple brands of water-base poly finish, I have found it very difficult to buff out sanding scratches. This material seems to be quite hard when cured.

I am using 3M's Perfect It auto polishing system, with RA polishing machines and by hand on neck. Maybe automotive clear coats are softer than these finishes?

I am pretty careful with leveling/sanding, using good brands (Norton Ice and/or Micromesh), and sanding up to 2000 grit (Norton) or 4000 (Micromesh).

It seems the compound provided in the first step of the Perfect It system is not aggressive enough.

Anyone with related experiences, or suggestions?

Thanks