20" Silicon Carbide Floor Sanding Discs — Large Rotary Floor Sanders

USA1 Abrasives 20" Silicon Carbide Floor Sanding Discs are built for large 20" rotary floor sanders used in commercial and high-volume professional floor refinishing. The large diameter maximizes surface coverage per pass, while silicon carbide abrasive cuts through old finishes efficiently. 2" center hole. Sold in packs of 20 discs.

Technical Specifications

• Abrasive Material: Silicon carbide
• Backing: Combination cloth-paper (grits 12–24) / Heavy-weight paper (grits 36–120)
• Diameter: 20"
• Center Hole: 2"
• Package Size: 20 discs per pack
• Available Grits: 12, 16, 20, 24, 36, 40, 60, 80, 100, 120
• Application: Dry floor sanding

Key Features & Benefits

• 20" Large Diameter: Maximum surface coverage per pass for high-efficiency commercial floor sanding
• Silicon Carbide Abrasive: Industry standard for floor refinishing — cuts faster than aluminum oxide
• Ultra-Coarse Options: Available down to 12 grit for severely damaged floors
• Dual Backing System: Cloth-paper on coarse grits for durability; heavy paper on finer grits
• Pack of 20: Economical supply for professional contractors

Floor Sanding Grit Progression

• 12-20 Grit: Severely damaged floors, heavy finish removal
• 24-36 Grit: Initial cut on standard refinishing jobs
• 40-60 Grit: General stripping and leveling
• 80-100 Grit: Intermediate smoothing
• 120 Grit: Final sanding before stain or finish

20" Maximum Coverage. Silicon Carbide Performance. Built for Commercial Floor Refinishing.