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Alpha PVA MS Dry Polishing Discs
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At a Glance
Quick Decision Guide
Disc Size
4"
Grit
40
Finish
Extra Coarse
Color
White
Arbor
5/8"
Maximum RPM
12,000
Polishing Method
Dry
Quantity
1 Disc
Why Choose This Product
Key Benefits
Dry Polishing
Polishes marble without the water and mess of wet polishing
Flexible Finishing
Works across contours, profiles, curves and irregular edges
Full Grit Range
Progresses from 40 Extra Coarse through 600 Extra Fine
Color-Coded Grits
Identifies polishing stages quickly during use
Clog Resistant
PVA material can handle paint removal without clogging
Multi-Material Use
Works on marble, ceramic, wood, metal and stainless steel
Fast Polishing
Silicon carbide abrasive supports efficient material removal and finishing
High-Speed Compatible
4" discs operate up to 12,000 RPM on compatible grinders
Product Information
Product Details
Specifications
Brand
Alpha®
Part Number
SPVAMSW
UPC
749173040207
Product Type
Dry Polishing Disc
Size
4"
Grit
40
Finish
Extra Coarse
Color
White
Quantity
1 Disc
Abrasive
Silicon Carbide
Bond
Polyvinyl Alcohol (PVA)
Polishing Method
Dry
Arbor
5/8"
Maximum RPM
12,000
Primary Material
Marble
Additional Materials
Ceramic, Wood, Metal & Stainless Steel
Edge Applications
Baseboards, Corners & Countertops
Surface Applications
Contours, Chamfers, Bead Molding & Irregular Surfaces
Additional Use
Paint Removal
About This Product
Dry Polishing for Marble Edges and Profiles
Alpha® PVA MS Dry Polishing Discs are formulated for polishing marble edges without the water and mess associated with wet polishing. The system works on baseboards, corners, countertop edges, contours, chamfers, bead molding, curved profiles, and other irregular surfaces, making it suitable for both fabrication and jobsite touch-ups.
Silicon Carbide Abrasive with PVA Bond
Each 4" disc combines silicon carbide abrasive with a polyvinyl alcohol bond for fast material removal, long service life, and consistent polishing performance. Color-coded grits range from 40 Extra Coarse through 600 Extra Fine, allowing users to progress from aggressive surface work through fine polishing with easy grit identification.
High-Speed Grinder Compatibility
The 4" discs have a 5/8" arbor and a maximum operating speed of 12,000 RPM for use with compatible high-speed grinders. The PVA material is resistant to clogging and can also be used on ceramic, wood, and metal edges, while the 4" discs are suitable for paint removal.
Contour Polishing and Stainless Steel Finishing
The flexible PVA system works effectively across contours, profiled edges, and rounded or irregular surfaces where rigid polishing products can be difficult to use. In addition to marble finishing, PVA MS can polish stainless steel to a mirror-like finish and works well in conjunction with Alpha Marble Profile Wheels.
Product Resources
Documentation & Downloads
Common Questions
Frequently Asked Questions
What materials can Alpha PVA MS polishing discs be used on?
Alpha® PVA MS is primarily designed for polishing marble but can also be used on ceramic, wood, and metal edges. It can also polish stainless steel to a mirror-like finish.
Are Alpha PVA MS discs used wet or dry?
They are a dry polishing system, allowing marble edges and profiles to be polished without the water and cleanup associated with wet polishing.
What grit sizes are available?
PVA MS is available in 40 Extra Coarse, 80 Coarse, 220 Medium, 400 Fine, and 600 Extra Fine grits. An assorted 10-disc pack is also available.
What grinders are compatible with PVA MS discs?
The 4" discs have a 5/8" arbor and are designed to work with compatible high-speed grinders. Maximum operating speed is 12,000 RPM.
Can PVA MS discs polish curved and profiled edges?
Yes. The PVA system is effective on contours, chamfers, bead molding, curved edges, rounded edges, and other irregular surfaces.
Can the discs be used for paint removal?
Yes. Alpha states that the 4" PVA MS discs can be used for paint removal because the material resists clogging.
Are PVA MS discs suitable for jobsite touch-ups?
Yes. The dry polishing system is suitable for jobsite touch-ups as well as shop work on marble edges and profiles.