Don't Know anything about Rubb n Buff,
But that won't stop me from commenting. A friend's headlight lenses were crazed to the point of being completly non-transparent. Using Menzerna 2L with a Surfbuf pad on a ROS we polished them up so they were like new. Much better than spending $500 fur a pair of new ones from Chrysler. I guess they are acrylic, aren't they? BTW those materials are available fro Homestead Finishing.
Not having any success with Run n Buff
Ironically, as I now type my wife sits beside me color filling a wooden pen set that we just engraved. Once again we tried rub n buff but it did not work as well as the gold acrylic paint - the type used by tole painters. Although we have only engraved a few pen sets that require the color fill we seem to have a lot better success with the less expensive acrylic paint than run n buff-plus the toxic fumes from the rub n buff are a lot more than the acrylic.
So is it now tumble 'n buff?
Never thought of that solution, Keith! And I have a rock tumbler or two around here!
Leigh