Alpha Sandpaper Disc Kit – 4 in., Assorted Grits, 50 per Box, for Marble & Soft Stone
Alpha Sandpaper Disc Kit – 4 in., Assorted Grits, 50 per Box, for Marble & Soft Stone
The Alpha Sandpaper Disc Kit is an assorted-grit box of 4 in. silicon carbide sanding discs with hook-and-loop backing, for marble and softer natural stone. It is supplied 50 per box, made up of an assortment of grits.
Silicon carbide is a soft-stone abrasive. On granite or quartz it dulls almost immediately and burnishes the surface instead of cutting it — Alpha lists this line for marble and softer natural stone. For granite and quartz use a diamond disc such as the Alpha Ceramica Resin Wet Polishing Disc, or the SIERRA Resin-Filled Diamond Cup Wheel for grinding.
Key Features
- 4 in. diameter, assorted grits
- Silicon carbide grain
- Hook and loop backing
- 50 per box
- Alpha: use on marbles and softer types of natural stone
- Alpha builds the 4 in. discs in 80, 120, 240, 320, 400 and 600 grit; the kit is an assortment drawn from that range
Who Is This For?
Shops that want a working spread of grits on the shelf rather than a box of one grit, and installers carrying a soft-stone sanding kit to site.
Frequently Asked Questions
Which grits are in the kit?
Alpha supplies it as an assortment. The individual grits Alpha builds in 4 in. are 80, 120, 240, 320, 400 and 600, and the individual grits are also stocked separately by the box.
How many discs are in the kit?
Each kit box holds 50 discs.
Can I use these on granite or quartz?
No. Silicon carbide is a soft-stone abrasive and Alpha lists this line for marbles and softer types of natural stone.
What does it mount on?
Any hook-and-loop backer pad of the same diameter — for example the Alpha Flexible or Rigid Backer Pad in 4 in., 5/8 in.-11 thread.