Hard paint, soft paint questions

[Accumulator]

Saintlysins- Hey, if somebody gets better results with the PC using milder approaches than I have to employ, more power to them :xyxthumbs No reason to fix what isn't broken

The back plate on the UDM is 5 1/4" -- Is that the same as PC?



And would I need to order a smaller backing plate for the 4" pad? Or just put the pad on the back plate , just have a slightly larger uncovered area of the backing plate -- I don't see where that would really hurt anything, not like I'm gonna push through the pad and back back plate hit the paint.

The PC plates are generally 5" or 6" as they were designed to fit the sandpaper sheets almost exactly (aftermarket plates are generally a little smaller to give a margin of safely with foam pads).



I would *NOT* use a pad that's smaller than the plate. I don't mind having them the same size (though many advise, very emphatically, against that), but that's as close as I'd cut it.



IIRC my smaller plate for the 4" pads is about 3.75". Places like Top of the Line Auto Detailing Supplies and Classic Motoring Accessories - Car Buffers, Car Waxes, Car Polishes, Auto Detailing Supplies, Car Covers, Car Accessories oughta have 'em, I forget where I bought mine.