3M Foam Compounding Pad - 8" Diameter - 12 Pack3M Foam Compounding Pad is a single sided convolute foam pad retains compound to reduce slinging and help with even application. Large surface area helps maximize productivity. May be used on cured, hard or medium finish paint and helps refine scratches. Convolute foam pad conforms to irregular surfaces, curves and body lines, reducing chatter for improved finish.