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Alpha® Sandpaper Discs for Sanding & Polishing Tile, Marble & Natural Stone

SKU ALP-SANDPAPER-4-80-MP40080
Save $8.10 Save $5.73
Original price $21.45
Original price $21.45 - Original price $30.37
Original price $21.45
Current price $15.72
$15.72 - $22.27
Current price $15.72
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Description

Alpha® Sandpaper discs offer tile installers, restoration workers, and contractors a reliable solution for concrete and marble polishing. Featuring waterproof hook and loop backing combined with silicon carbide abrasive, these discs are ideal for polishing softer natural stones such as marble, travertine, and onyx. Designed for durability and ease of use onsite, Alpha® Sandpaper discs resist clogging during wet use, extending their lifespan while maintaining excellent polishing performance.

Key Features of Alpha® Sandpaper Discs for Polishing and Sanding

  • Waterproof Hook and Loop Backing: Enables quick disc changes and reliable attachment.
  • Silicon Carbide Abrasive: Perfect for sanding and polishing marble and softer natural stones.
  • Resists Clogging When Used Wet: Enhances disc longevity and polishing efficiency.
  • Versatile Application: Suitable for glass, metal, wood, and multi-purpose sanding tasks including Bondo, primer, and paint.
  • Easy Onsite Use: Lightweight and adaptable for fast polishing over wide areas.
  • Available Sizes and Grits: Offered in 4-inch and 5-inch discs with multiple grit options for varying polishing needs.

Alpha® Sandpaper Disc Product Specifications

Part No. Size Type Grit Qty
MP40080 4" Hook & Loop 80 50
MP40120 4" Hook & Loop 120 50
MP40240 4" Hook & Loop 240 50
MP40320 4" Hook & Loop 320 50
MP40400 4" Hook & Loop 400 50
MP40500 4" Hook & Loop 500 50
MP40600 4" Hook & Loop 600 50
MP40KIT 4" Hook & Loop Assortment 50
MP50080 5" Hook & Loop 80 50
MP50120 5" Hook & Loop 120 50
MP50240 5" Hook & Loop 240 50
MP50320 5" Hook & Loop 320 50
MP50400 5" Hook & Loop 400 50
MP50500 5" Hook & Loop 500 50
MP50600 5" Hook & Loop 600 50
MP50KIT 5" Hook & Loop Assortment 50

Usage Instructions for Polishing and Sanding

Designed for professional use on concrete, marble, and other softer natural stones, Alpha® Sandpaper discs work best when used with Alpha® GV Backer Pads. They can be applied wet to reduce clogging and extend disc life or used dry when necessary. For a high-gloss finish on marble, complete the polishing process with the Alpha® Felt Wheel and an appropriate buffing compound.

Optimize your polishing and sanding projects with the durable and versatile Alpha® Sandpaper discs. Order today to experience efficient, professional-grade results for marble and concrete surfaces.

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Frequently Asked Questions

What materials can Alpha® Sandpaper discs be used on?
They are designed for polishing and sanding softer natural stones such as marble, travertine, and onyx, as well as concrete, glass, metal, wood, and other surfaces like Bondo, primer, and paint.
Can these discs be used for both wet and dry applications?
Yes. They can be used wet to help reduce clogging and extend disc life, or dry when needed.
What sizes and grit options are available?
They are available in 4-inch and 5-inch sizes with grit options ranging from 80 to 600, plus assortment packs for both sizes.
Do I need a specific backing pad to use these discs?
For best results, they should be used with Alpha® GV Backer Pads.
How can I achieve a high-gloss finish on marble?
Complete the polishing process with an Alpha® Felt Wheel and a suitable buffing compound after using the sandpaper discs.

Customer Reviews

Based on 14 reviews
86%
(12)
14%
(2)
0%
(0)
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0%
(0)
B
Barry J.
Sandpaper

Polishing stone is what it works for

a
asarkozy
Handy stone polishing tool for making smooth exposed tile edges on marble corners

I had to polish some outside corner marble edges for a kitchen tile job, the customer didn't want to use an edge product that looked out of place with their design. Starting with the coarse to very fine discs this pack of discs helped achieve the look they wanted. I was lucky to smooth out the stone since Marble is a lot easier to smooth out than other harder stone products.

F
Fishman8880
One of the best

If you�re familiar with Alpha products you know they make quality stuff. These sanding discs are no exception. I personally bought these for wet sanding (mostly) epoxy with a variable speed 4 inch angle grinder. They�re made for sanding and polishing stone I believe, but they�ve worked great on everything for me from wood to metal to resin. They last pretty long too.

A
Anonymous
It works

I loved it worked great..I remdend this.but you do need. A feeble speed grinder or polisher

C
CesarGPhoto
Awesome

I redid my shower from a cheap fiberglass tub/shower combo to a tile walk in shower and installed a 60”X6” marble window sill as the cap to the shower curb. The marble window sill I purchased from Floor & Decor came with only one edge finished and polished so I used these sanding discs to finish and polish the rough cut edge. I used all the grits on my variable speed grinder set at low RPMs and it came out perfectly. This was a LOT cheaper than special ordering a marble piece with both edges finished and polished. I literally saved over $100 polishining out the rough edge myself and it was a very satisfying process doing it myself and seeing the shine come through as I moved through each grit.

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