Alpha® Sandpaper discs are waterproof, hook and loop backed sanding and polishing discs made with silicon carbide abrasive. They are designed for use on marble and other softer natural stones, supporting both wet and dry applications during fabrication, installation, and restoration.

The silicon carbide abrasive resists clogging when used wet, helping extend disc life while maintaining consistent cutting performance. Hook and loop backing allows for quick disc changes when used with standard backer pads or the Alpha® GV5000 backer pad.

Key Features

• Silicon Carbide Abrasive: Suitable for sanding and polishing marble, travertine, terrazzo, and onyx.
• Waterproof Hook & Loop Backing: Supports wet use and allows fast disc changes.
• Resists Clogging When Wet: Helps maintain cutting performance and extend disc life.
• Wet or Dry Use: Can be used dry when necessary while remaining durable.
• Multi-Surface Capability: Can also be used on glass, metal, wood, bondo, primer, and paint.
• Wide Grit Selection: Available in grits from #80 through #600 using the U.S. CAMI grit system.

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 provides consistent sanding and polishing performance across a wide range of materials and grit options, supporting wet and dry surface finishing with hook and loop convenience.