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Alpha Twincur Final Polishing Discs for Granite - 4"
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At a Glance
Quick Decision Guide
Disc Size
4"
Color
Black
Recommended For
Dark Granite
Edge Applications
Square & Beveled
Maximum RPM
1,800
Mount
Snail Lock
Polishing Stage
Final Polish
Water Flow
Low Water Volume
Why Choose This Product
Key Benefits
Super-Glossy Finish
Produces a highly reflective final finish on granite edges
Color-Specific Options
Black suits dark granite, while White suits light granite
Flexible Water Control
Green performs across granite colors using higher water volume
Heat-Compressed Construction
Combines tin oxide and natural fibers for consistent polishing
Square & Beveled Edges
Completes final polishing on both edge configurations
Long Service Life
Durable polishing composition supports extended production use
Snail Lock Connection
SFAT mounting supports convenient installation and replacement
Automatic Machine Fit
Works with compatible single-head and multiple-head edge polishers
Product Information
Product Details
Specifications
Brand
Alpha®
Part Number
SF4BLACK
UPC
749173470929
Product Type
Final Polishing Disc
Size
4"
Color
Black
Recommended Material
Granite
Recommended Stone Color
Dark
Application
Final Edge Polishing
Edge Applications
Square & Beveled Edges
Maximum RPM
1,800
Mount Type
Snail Lock
Adapter
SFAT Snail Lock
Bond Type
Final Polisher Buff
Polishing Compound
Tin Oxide & Natural Fibers
Construction
Heat Compressed
Recommended Water Flow
Low Water Volume
Machine Compatibility
Automatic Edge Polishing Machines
Multiple-Head Machine Compatible
Yes
Finish
Super Glossy
About This Product
Final Polishing Discs for Granite Edges
Alpha® Twincur Final Polish discs complete the polishing process on square and beveled granite edges using compatible automatic edge polishing machines. Used after the progressive abrasive or diamond polishing disc sequence, they produce a super-glossy final finish with Black, White, and Green options for different stone colors and water-flow requirements.
Black, White and Green Final Polish Options
Black Final Polish is recommended for dark granite, while White Final Polish is recommended for light granite. Both use the traditional final polishing method with a low volume of water. Green Final Polish works across granite colors and performs with significantly higher water volume, allowing normal machine water flow when a reduced flow is difficult to control.
Heat-Compressed Tin Oxide and Natural Fibers
Unlike the diamond polishing wheels used during earlier grit stages, each final polishing disc combines tin oxide and natural fibers in a heat-compressed construction. This composition provides fast, consistent polishing results, long service life, and a highly reflective granite edge finish.
4" Snail Lock Discs for Automatic Edge Polishers
Each Twincur Final Polish disc measures 4", uses an SFAT Snail Lock connection, and has a maximum operating speed of 1,800 RPM. The discs fit most popular automatic edge polishing machines, including compatible multiple-head equipment used for production granite fabrication.
Common Questions
Frequently Asked Questions
What is the difference between Black, White, and Green Twincur Final Polish discs?
Black is recommended for dark granite, while White is recommended for light granite. Both use a low volume of water. Green works across granite colors and is designed for significantly higher water volume, allowing normal machine water flow.
What material can Alpha Twincur Final Polish discs polish?
The discs are designed specifically for final polishing of granite edges.
Can Twincur Final Polish be used on square and beveled edges?
Yes. The discs are designed to produce a final polish on both square and beveled granite edges.
What are Twincur Final Polish discs made from?
They combine tin oxide and natural fibers in a heat-compressed construction designed to produce fast, consistent, and super-glossy polishing results.
Is Twincur Final Polish a diamond polishing disc?
No. Twincur Final Polish uses heat-compressed tin oxide and natural fibers rather than diamond abrasive. It serves as the final finishing step after compatible abrasive or diamond polishing discs have completed the progressive polishing sequence.
What size and connection do Twincur Final Polish discs use?
Each disc has a 4" diameter and uses an SFAT Snail Lock connection for compatible automatic edge polishing machines.
What is the maximum operating speed?
The Black, White, and Green 4" Twincur Final Polish discs have a maximum operating speed of 1,800 RPM.
Which disc should I use with higher water flow?
Choose Green Final Polish when normal or higher machine water flow is preferred. Black and White require the traditional low-water final polishing method.
Can Twincur Final Polish discs be used on multiple-head machines?
Yes. They fit compatible multiple-head machines and most popular automatic edge polishing equipment.