Skip to content
Free Shipping on Most Orders $200 or More!
Free Shipping on Most Orders $200 or More!

Alpha Sandpaper Discs

Alpha® Sandpaper discs combine waterproof hook and loop backing with silicon carbide abrasive to deliver reliable performance on marble, travertine, onyx, and other softer stones. Available in multiple grits and 4 inch and 5 inch sizes, they resist clogging in wet use and provide consistent cutting action for polishing and sanding work.

Learn More!

Save $6.58 Save $4.66
Original price $20.38
Original price $20.38 - Original price $28.85
Original price $20.38
Current price $15.72
$15.72 - $22.27
Current price $15.72
Availability:
24 in stock!
Availability:
19 in stock!
Availability:
4 in stock!
Availability:
10 in stock!
Availability:
10 in stock!
Availability:
Only 2 left!
Availability:
4 in stock!
Availability:
13 in stock!
Availability:
5 in stock!
Availability:
Only 1 left!
Availability:
Out of stock
Availability:
4 in stock!
Availability:
Only 2 left!
Availability:
Only 2 left!
Availability:
4 in stock!
Availability:
6 in stock!
SKU ALP-SANDPAPER-4-80-MP40080
Size: 4"
Grit: 80

Free Shipping On Most Orders $200 or More!

Contractor Program Eligible

View Contractor Pricing Details

Description

Alpha® Sandpaper discs provide a dependable option for tile installers, restoration professionals, and contractors who need consistent polishing and sanding performance. Built with a waterproof hook and loop backing and silicon carbide abrasive, these discs are ideal for working on softer natural stones such as marble, travertine, and onyx. They are designed for wet use to help resist clogging and maintain a smooth, even finish across the surface.

Key Features

  • Waterproof Hook and Loop Backing: Provides secure attachment and allows fast disc changes during polishing or sanding.
  • Silicon Carbide Abrasive: Well suited for marble, travertine, onyx, and other softer natural stones.
  • Resists Clogging in Wet Use: Designed to shed slurry and maintain cutting efficiency for longer disc life.
  • Multi Surface Versatility: Suitable for selected applications on concrete, glass, metal, wood, primer, and body filler.
  • Available in Multiple Grits: Offered in a range of grits for leveling, smoothing, and pre-polishing stages.
  • 4 Inch and 5 Inch Options: Sized for common backer pads and tools used in stone and surface preparation work.

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

Alpha® Sandpaper offers a practical combination of durability, versatility, and consistent performance for polishing and sanding tasks. With waterproof hook and loop backing, silicon carbide abrasive, and a wide selection of grits and sizes, these discs help professionals achieve reliable results on softer natural stone and compatible surfaces in both shop and onsite environments.

Alpha Professional Tools Logo

Frequently Asked Questions

What materials are Alpha Sandpaper best suited for?
Alpha Sandpaper discs are well suited for softer natural stones such as marble, travertine, and onyx. They can also be used for selected tasks on concrete, glass, metal, and wood where a silicon carbide abrasive and controlled cutting action are appropriate.
Can these sandpaper discs be used with water?
Yes. Alpha Sandpaper discs are designed for wet use and feature waterproof hook and loop backing. Using them with water helps reduce clogging, extend disc life, and improve the overall quality and consistency of the polished or sanded surface.
What sizes and grits are available?
Alpha Sandpaper discs are offered in 4 inch and 5 inch diameters and a wide range of grits, including coarse through fine options. This progression allows users to handle leveling, smoothing, and pre polishing steps as part of a complete finishing process.
Do these discs work with hook and loop backer pads?
Yes. Alpha Sandpaper discs are manufactured with a hook and loop backing so they attach securely to compatible backer pads. This design allows fast changes between grits and helps maintain a stable connection during polishing and sanding operations.
Are Alpha Sandpaper discs suitable for onsite use?
Alpha Sandpaper discs are suitable for both shop and onsite use. Their durable construction, wet use capability, and hook and loop attachment make them practical for field repairs, edge work, touch ups, and detailed finishing on softer stone surfaces.
Free Shipping

On Qualifying Orders of $200 or More!

Need Help?

Contact Us

Top Brands

Offering 40+ Brands

Returns

30 Day Returns