Alpha® Sandpaper Discs for Marble & StoneAlpha® Sandpaper consists of a waterproof hook-and-loop backed material combined with a silicon carbide abrasive — the right pairing for marble and softer natural stone. The discs resist clogging when run wet, extending life, and the hook-and-loop backing makes pad changes fast. Available in 4" and 5" diameters from #80 to #600 grit, plus assortment kits.Features Waterproof Hook and Loop Backed Silicon Carbide Abrasive Resists Clogging When Used Wet Use On Marbles and Softer Types of Natural Stone Very Adaptable To Onsite Work and Easy To Use Can Also Be Used To Polish Glass, Metal and Wood Great for Multi-Purpose Sanding of Bondo, Primer & Paint Available in 4” and 5” Sizes (Boxes of 50) Grits Available: #80, #120, #240, #320, #400, #500 and #600 Grit Indication is U.S. Cami Grit System .dst-accordion { margin-top: 25px; border: 1px solid #FDDCC5; border-radius: 6px; overflow: hidden; } .dst-accordion-item { border-bottom: 1px solid #FDDCC5; } .dst-accordion-item:last-child { border-bottom: none; } .dst-accordion-toggle { display: none; } .dst-accordion-label { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; cursor: pointer; font-size: 17px; font-weight: 700; color: #231F20; background: #fff; transition: background 0.2s; } .dst-accordion-label:hover { background: #FFF3EB; } .dst-accordion-label::after { content: '+'; font-size: 22px; font-weight: 700; color: #F15C22; transition: transform 0.3s; } .dst-accordion-toggle:checked + .dst-accordion-label { background: #FFF3EB; } .dst-accordion-toggle:checked + .dst-accordion-label::after { content: '\2212'; } .dst-accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; padding: 0 20px; background: #fff; } .dst-accordion-toggle:checked ~ .dst-accordion-content { max-height: 5000px; padding: 15px 20px 20px; } Models / Part Numbers Part No. Size Type Grit Qty/Box UPC MP40080 4" Hook & Loop #80 50 749173440069 MP40120 4" Hook & Loop #120 50 749173440076 MP40240 4" Hook & Loop #240 50 749173440083 MP40320 4" Hook & Loop #320 50 749173440090 MP40400 4" Hook & Loop #400 50 749173440106 MP40500 4" Hook & Loop #500 50 749173440113 MP40600 4" Hook & Loop #600 50 749173440120 MP40KIT 4" Hook & Loop Assortment 50 749173440137 MP50080 5" Hook & Loop #80 50 749173440144 MP50120 5" Hook & Loop #120 50 749173440151 MP50240 5" Hook & Loop #240 50 749173440168 MP50320 5" Hook & Loop #320 50 749173440175 MP50400 5" Hook & Loop #400 50 749173440182 MP50500 5" Hook & Loop #500 50 749173440199 MP50600 5" Hook & Loop #600 50 749173440205 MP50KIT 5" Hook & Loop Assortment 50 749173440212 How to Use Match the disc diameter to your backer pad and tool — 4" or 5". Mount on an Alpha® VSP-320 or AIR-680 polisher for wet use, or a Makita GV5000 sander with an Alpha backer pad for dry use. Step through grits in order: #80 → #120 → #240 → #320 → #400 → #500 → #600. Run wet for best results — supply water at the disc face for dust control, longer life and a higher-quality finish. Apply light, even pressure; let the abrasive do the work. Inspect each disc and replace when the silicon carbide is worn smooth. Specifications by Variant Sandpaper Disc 4", Hook & Loop, #80 grit, 50/box — MP40080 Part No. MP40080 UPC 749173440069 Type Sandpaper Disc 4", Hook & Loop, #80 grit, 50/box Packaged Weight 0.60 lbs Commodity Code 6805.20.0000 Country of Origin Japan Sandpaper Disc 4", Hook & Loop, #120 grit, 50/box — MP40120 Part No. MP40120 UPC 749173440076 Type Sandpaper Disc 4", Hook & Loop, #120 grit, 50/box Packaged Weight 0.60 lbs Commodity Code 6805.20.0000 Country of Origin Japan Sandpaper Disc 4", Hook & Loop, #240 grit, 50/box — MP40240 Part No. MP40240 UPC 749173440083 Type Sandpaper Disc 4", Hook & Loop, #240 grit, 50/box Packaged Weight 0.60 lbs Commodity Code 6805.20.0000 Country of Origin Japan Sandpaper Disc 4", Hook & Loop, #320 grit, 50/box — MP40320 Part No. MP40320 UPC 749173440090 Type Sandpaper Disc 4", Hook & Loop, #320 grit, 50/box Packaged Weight 0.60 lbs Commodity Code 6805.20.0000 Country of Origin Japan Sandpaper Disc 4", Hook & Loop, #400 grit, 50/box — MP40400 Part No. MP40400 UPC 749173440106 Type Sandpaper Disc 4", Hook & Loop, #400 grit, 50/box Packaged Weight 0.60 lbs Commodity Code 6805.20.0000 Country of Origin Japan Sandpaper Disc 4", Hook & Loop, #500 grit, 50/box — MP40500 Part No. MP40500 UPC 749173440113 Type Sandpaper Disc 4", Hook & Loop, #500 grit, 50/box Packaged Weight 0.60 lbs Commodity Code 6805.20.0000 Country of Origin Japan Sandpaper Disc 4", Hook & Loop, #600 grit, 50/box — MP40600 Part No. MP40600 UPC 749173440120 Type Sandpaper Disc 4", Hook & Loop, #600 grit, 50/box Packaged Weight 0.60 lbs Commodity Code 6805.20.0000 Country of Origin Japan Common Specifications Property Detail Abrasive Silicon carbide Backing Waterproof hook & loop Materials Marble, travertine, terrazzo, onyx, limestone, ceramic tile; also glass, metal, wood Diameters Available 4" and 5" Grits Available #80, #120, #240, #320, #400, #500, #600, plus Assortment kit Use Wet or dry; wet recommended Package Quantity 50 discs per box Commodity Code 6805.20.0000 Country of Origin Japan Related & Companion Products Alpha® VSP-320 Variable Speed Wet Polisher Alpha® Ceramica Polishing Discs (for granite) Alpha® Hook & Loop Backer Pads FAQs Which materials work with Alpha® Sandpaper?Alpha® Sandpaper can be used for marble, onyx, travertine, terrazzo, limestone and ceramic tile. It also polishes glass, metal and wood.Can I use Alpha® Sandpaper on granite?No — Alpha does not recommend sandpaper for granite. Use Alpha® Ceramica or Ceramica EX polishing discs for granite instead.Can it be used dry?Yes. However, the special advantages of long life, dust control and high-quality finish may be reduced when running dry.Are the discs reusable?Yes — discs remain reusable until the silicon carbide is worn through.Which tools are recommended?For wet use: Alpha® VSP-320 or AIR-680 polishers. For dry use: Makita GV5000 sander with Alpha backer pads.What sizes and grits are available?4" and 5" diameters, grits #80, #120, #240, #320, #400, #500 and #600, plus an Assortment kit containing one of each grit. Videos AWP-158 with Sandpaper on Marble Edge Documentation 📄 Sandpaper Technote 📄 Sandpaper Helpful Hints 📄 Sandpaper How to Use 📄 SDS — Sandpaper ⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.
