Every floor pad in the 3M line is designed and manufactured with a uniform coating throughout, assuring longer-lasting performance in a variety of maintenance operations. Done prior to replacing worn finish; provides a fresh new surface. Use with Rotary or Automatic, Low Speed 175-600 RPM. For heavy duty scrubbing prior to recoating. Removes dirt, spills, and scuffs. Leaving a clean surface ready for recoating. Sold by the Case of 5.