Pool Plaster Disc Grit Guide
Our Matrix non-corrosive diamond pool plaster discs are designed for dry use, giving pool contractors and DIY owners a safe, fast way to smooth and restore rough plaster finishes. Use this grit guide to select the correct disc for your project. For a complete overview of the Pool Plaster Disc system and surface correction process, see our full guide.
Pool Plaster Disc Comparison
| Grit |
Best For |
Surface Types |
Notes |
| 50 Grit |
Heavy scale & rough plaster removal |
Marble, quartz, pebble |
Aggressive cut — start here if the surface is severely rough |
| 70 Grit |
Refining & blending after 50 grit |
Marble, quartz, pebble |
Smooths surface scratches after 50 grit |
| 120Grit |
Final smoothing & polishing |
All plaster types |
Leaves a comfortable, swim-ready finish |
How to Use
-
Dry Use Recommended – no water required
- Use a 7" variable-speed sander polisher with a max RPM of 3000.
-
Work in Small Sections: about 5 × 5 ft at a time
-
Residue Control: vacuum or rinse between passes to prevent heat buildup
-
Backer Pad: use with 7″ hook & loop backer pad (MA7529)
Recommended 3-Step Process
- Start with 50 grit for initial heavy scale removal.
- Move to 70 grit to refine and smooth the surface.
- Finish with 120 grit for the best underfoot feel and long-lasting smoothness.
Dry Use vs. Wet Use
Our discs are engineered for Dry Polishing and Resurfacing.
Fix Rough Pool Plaster – DIY Resurfacing with Non-Corrosive Diamond Discs
Learn how to smooth rough pool plaster using non-corrosive diamond discs designed for dry use. This guide explains which grit to choose (50 / 70 / 120), proper RPM, section size, and the recommended three-step process for a swim-ready finish without buying expensive water-fed machines.
Choose the Right Grit
Dry Use vs. Wet Use
Dry use recommended for simplicity and cost control with a standard 7″ variable-speed polisher and GFCI. Wet grinding can extend disc life but requires specialized water-fed equipment and a water supply.
Why Non-Corrosive?
Unlike metal-bond pads, these discs use a non-corrosive diamond matrix that won’t rust or stain, making them safe for standard and saltwater pools while maintaining consistent cutting power.
Related Searches
fix rough pool plaster · smooth pool finish · diy pool resurfacing · pool plaster repair discs · diamond sanding pads for pools · dry use pool plaster discs · non-corrosive diamond matrix · 7 inch hook and loop backer AG7529
Shop the full range in our Pool Plaster Discs & Accessories collectio
Most pool owners and contractors prefer dry use because it requires only a standard 7″ variable-speed polisher with GFCI protection, or a cordless model — no expensive water-fed machine is needed.
Wet sanding can extend disc life by keeping the pad cooler, but it requires specialized equipment and a water supply. Dry use is simpler, faster to set up, and keeps costs low while still delivering excellent results.
Why Non-Corrosive Diamond Discs?
Unlike traditional metal-bonded pads, our discs feature a non-corrosive diamond bonding matrix that won’t rust or react with pool water. This makes them ideal for both standard and saltwater pools. They deliver cleaner cuts, longer life, and consistent performance in every pass.
→ Shop Pool Plaster Discs Now
Fix Rough Pool Plaster – DIY Resurfacing with Non-Corrosive Diamond Discs
Learn how to smooth rough pool plaster using non-corrosive diamond discs designed for dry use. This guide explains which grit to choose (50 / 70 / 120), proper RPM, section size, and the recommended three-step process for a swim-ready finish without buying expensive water-fed machines.
Choose the Right Grit
Dry Use vs. Wet Use
Dry use recommended for simplicity and cost control with a standard 7″ variable-speed polisher and GFCI. Wet grinding can extend disc life but requires specialized water-fed equipment and a water supply.
Why Non-Corrosive?
Unlike metal-bond pads, these discs use a non-corrosive diamond matrix that won’t rust or stain, making them safe for standard and saltwater pools while maintaining consistent cutting power.
Related Searches
fix rough pool plaster · smooth pool finish · diy pool resurfacing · pool plaster repair discs · diamond sanding pads for pools · dry-use pool plaster discs · non-corrosive diamond matrix · 7-inch hook-and-loop backer AG7529.
Shop the full range in our Pool Plaster Discs & Accessories collection.
