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Alpha PVA VP Style 4-1/2" Dry Polishing Discs
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At a Glance
Quick Decision Guide
Disc Size
4-1/2"
Grit
40
Finish
Extra Coarse
Maximum RPM
13,200
Arbor
5/8"-11
Thickness
3/8"
Polishing Method
Dry
Quantity
1 Disc
Why Choose This Product
Key Benefits
Dry Polishing
Polishes and refines compatible surfaces without requiring water
Broad Material Use
Works on stone, stainless steel, aluminum, ceramic and wood
Silicon Carbide Abrasive
Provides fast material removal and progressive polishing
Clog-Resistant PVA
Maintains cutting performance during polishing and coating removal
Five Grit Options
Progresses from 40 Extra Coarse through 600 Extra Fine
High-Speed Performance
Operates at speeds up to 13,200 RPM
Direct Threaded Attachment
5/8"-11 zinc hub fits compatible grinders, polishers and sanders
Surface Preparation
Removes paint, rust and coatings from compatible materials
Product Information
Product Details
Specifications
Brand
Alpha®
Part Number
SPVA45WH
UPC
749173040344
Product Type
PVA Polishing Disc
Size
4-1/2"
Thickness
3/8"
Grit
40
Finish
Extra Coarse
Abrasive
Silicon Carbide
Bond
Polyvinyl Alcohol
Arbor
5/8"-11
Hub Type
Disposable Zinc Hub
Maximum RPM
13,200
Polishing Method
Dry
Compatible Tools
Polishers, Sanders & Grinders
Suitable Materials
Softer Stone, Marble, Limestone, Travertine, Granite, Aluminum & Stainless Steel
Additional Applications
Ceramic, Wood, Other Metals, Paint, Rust & Coating Removal
Clog Resistance
Designed Not to Clog
Quantity
1 Disc
About This Product
High-Speed Dry Polishing Discs for Stone and Metal
Alpha® PVA VP Style 4-1/2" Dry Polishing Discs polish and refine marble, limestone, travertine, granite, aluminum, stainless steel, and other compatible surfaces without water. The high-speed system supports edge polishing, surface refinement, and material removal in fabrication, restoration, and finishing applications.
Silicon Carbide Abrasive with a PVA Bond
Each polishing disc combines fast-cutting silicon carbide abrasive with a durable polyvinyl alcohol bond. The flexible, clog-resistant construction supports consistent polishing performance and long service life while working on stone, metal, ceramic, wood, paint, rust, and coatings.
Five Grits for Progressive Surface Refinement
PVA VP Style discs are available in 40 Extra Coarse, 80 Coarse, 220 Medium, 400 Fine, and 600 Extra Fine grits. The sequence progresses from aggressive material removal through fine polishing and can produce a semi-mirror finish on stainless steel.
Angle Grinder Polishing Discs with a 5/8"-11 Hub
Each 4-1/2" disc has a disposable zinc hub with a 5/8"-11 thread for direct attachment to compatible angle grinders, polishers, and sanders. The discs are 3/8" thick and rated for high-speed operation up to 13,200 RPM.
Product Resources
Documentation & Downloads
Common Questions
Frequently Asked Questions
What materials can Alpha PVA VP Style Polishing Discs be used on?
The discs polish softer stone, marble, limestone, travertine, granite, aluminum, stainless steel, ceramic, wood, and other compatible metals.
Are PVA VP Style discs used wet or dry?
They are high-speed dry polishing discs and do not require water during polishing or surface-refinement applications.
What grit options are available?
The 4-1/2" discs are available in 40 Extra Coarse, 80 Coarse, 220 Medium, 400 Fine, and 600 Extra Fine grits.
What tools are compatible with PVA VP Polishing Discs?
The discs have a disposable 5/8"-11 threaded zinc hub for direct attachment to compatible grinders, polishers, and sanders.
Can PVA VP discs be used as angle grinder polishing pads?
Yes. Although they are polishing discs rather than hook-and-loop pads, their 5/8"-11 threaded hubs fit compatible angle grinders. The tool and disc speed ratings must be matched before use.
What is the maximum RPM for PVA VP Style discs?
Each 4-1/2" disc has a maximum operating speed of 13,200 RPM.
Can PVA VP discs remove paint, rust and coatings?
Yes. The clog-resistant PVA construction makes the discs suitable for removing paint, rust, and coatings from compatible surfaces.
Can PVA VP Polishing Discs polish stainless steel?
Yes. Progressive polishing through the available grit sequence can produce a semi-mirror finish on stainless steel.