extra-fine rubbing compound used with an orbital buffer (use very light pressure and change pads often) will remove the chalky dull residue, which must be done prior to applying any kind of finish or wax. In fact I'm getting ready to do this myself. It's up to you to decide what finish/wax to use, I use gel-coat polish or poly-glow.
Keep in mind this important fact, the faster you do it_the faster you make a mistake.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"