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Originally Posted by a.k.a. Patrick Agreed.....I opt for applying no additional pressure to the PC either, accept to manipulate its movement. I feel its plenty heavy on its own....Porter cable doesnt even recommend using additional pressure. (Im not sure if some of you other users are aware of this). |
Patrick,
Porter Cable's perspective comes from using the PC as a sander, not an automotive polisher.
Regardless of how Porter Cable designed the machine to be used, anyone using the PC as a serious tool to polish paint applies pressure. It's necessary to apply pressure in order to get enough friction to heat a cutting polish so that the abrasives will break down and polish out.
I agree that a "paint cleaner" polish like Z-PC does not require much friction to do its job, which is why it also works by hand.
db