Scotchbrite* Wheel Grades. Apart from the grit 180, 280, 320 etc there is a hardness grade listed as a number followed by a P.
180# Grit 5P Dark Gray Nylon Polishing Buffing Wheel Replacement 8" x 2"
180# Grit 7P Dark Gray Abrasives Nylon Polishing Buffing Wheel 8" x 2"
180# Grit 9P Dark Gray Nylon Polishing Wheel Disc Pad Replacement 8" x 2"
320# Grit 12P Dark Gray Nylon Polishing Buffing Wheel Replacement 8" x 1"
The smaller the P rating the softer the wheel. As you can see above the 180 grit comes rated from 5p through 9P, and the 320 goes to 12P.
What I would like to find out is why you want a softer or harder wheel. My assumption is a harder wheel actually cuts less in this type of wheel.
This would be very different to a stone type wheel where a soft stone breaks down faster.
*In this case I am not referring to Scotchbrite brand but that type of product.
180# Grit 5P Dark Gray Nylon Polishing Buffing Wheel Replacement 8" x 2"
180# Grit 7P Dark Gray Abrasives Nylon Polishing Buffing Wheel 8" x 2"
180# Grit 9P Dark Gray Nylon Polishing Wheel Disc Pad Replacement 8" x 2"
320# Grit 12P Dark Gray Nylon Polishing Buffing Wheel Replacement 8" x 1"
The smaller the P rating the softer the wheel. As you can see above the 180 grit comes rated from 5p through 9P, and the 320 goes to 12P.
What I would like to find out is why you want a softer or harder wheel. My assumption is a harder wheel actually cuts less in this type of wheel.
This would be very different to a stone type wheel where a soft stone breaks down faster.
*In this case I am not referring to Scotchbrite brand but that type of product.
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