Pool Plaster Abrasive Disc 50 grit works with water or air driven tools on marble, quartz or pebble-based pool plaster finishes. Used wet or dry to remove trowel marks and smooth over overexposed pool finishes. Our 50 Grit diamonds are bonded to a specific pad with NON-CORROSIVE material. The disc can be used with or without water. Use our 7" hook and loop backing pad on a variable speed polisher, or sander producing 4500 RPMs are less. The residuals from the bonding material will not stain swimming pool plaster, unlike other pads residue that stains pool plaster finishes over time. Works well with all water and air driven variable speed polishers, and sanders. Our 7" diameter hook and loop backer pad AG7529 used with our Pool Plaster Abrasive disc to ensure 100% contact with the pool plaster finish you are resurfacing. (using a smaller diameter backing pad will cause the pool plaster disc to wear uneven and reduce the life of the pool plaster disc) Do not exceed 3500 RPMs. DIAMOND DISC FLEX 7" 50 GRIT, 50D7FXO, CII-37-1007.
NOTE: When using a pool plaster disc without water it is important not to overheat the disc by doing a 5 Ft. x 5 Ft. area then use a hose to wash off plaster residual material remaining keeping disc and plaster cool.