Pool Plaster Disc 50 Grit – Non-Corrosive Surface Refinishing Disc

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Dry use only — no water needed. The 50 grit non-corrosive pool plaster disc levels rough plaster and scale on marble, quartz, and pebble pools. Safe for saltwater and longer-lastin g than metal-bond pads. Pool Plaster Abrasive Disc 50 grit works with water or air-driven tools on marble, quartz, or pebble-based pool plaster finishes. Wet or dry to remove trowel marks and smooth over overexposed pool finishes. Our 50 Grit diamonds are bonded with a NON-CORROSIVE matrix material, unlike traditional electroplated pads. That causes rust problems from the residuals most of the time after use. 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 3000 RPMs or less. The residuals from the bonding material will not stain swimming pool plaster, unlike other pad residues that stain 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 MA7529 is 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 unevenly and reduce the life of the pool plaster disc. Do not exceed 3500 RPMs. 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 any plaster residual material remaining, keeping the disc and plaster cool. Show more