Edge Pad's Level of Cut, please help

The PPI count will usually define the composition (hard / soft) of a pad, but I will agree there are always materials of construvtion differences

See also "Foam Pads" in the detailing school section

 

Black has now replaced the orange, since 3M took over, by the looks of it.

 

3M / Edge 2000 Foam Pads - since they’re double-sided, you get twice the usable surface area out of every pad, and their own Durofoam holds up to frequent use
1.Black Heavy Cutting Pad - 40 PPI, very aggressive pad, works fast while reducing risk of burning. For heavily oxidized or pitted finishes, removes wet sand scratches.
2.Yellow Cutting Pad – 50 PPI, this pad is aggressive and will cut through deep surface marks and swirls. The yellow pads work well on heavy oxidation and pitted finishes, and will remove wet sand scratches without causing burning.
3. Green Medium Cutting Pad – 60 PPI, useful for light oxidation and moderate to severe swirls and imperfections, this pad will yield amazing results on older vehicles, and should be used on vehicles with moderate swirls and imperfections. Add a compound or pre-wax cleaner for a flawless finish.
4.Blue Polishing Pad – 70 PPI, great for regular use, it will leave surface areas scratch-free and smooth while still removing light swirls and imperfections. Use with wax and polish to apply a fine gloss.
5.White Ultra fine Finishing Pad – 80 PPI, ultra smooth and ultra soft, and the white pad leaves a bold, crystalline gloss on new and just-detailed vehicles. Apply waxes, sealants, and glazes with the white pad.

As with all Edge pads the Edge Wave Pads do not require a backing plate. They attach to your polisher using the Edge 2000 Drive DA Adapter (E-210), which screws into your Porter Cable 7424 or other dual action polisher.

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Apologies to Buddy- I said Edge didn't produce a Black foam, well 3M / Edge does