5" x 7/8" Select Resin Fiber Discs, 050 Grit, Zirconia | LVARF50ZA050SEL

Zirconia Resin Fiber Disc - Select Grade

These Lehigh Valley Abrasives branded Select Grade Zirconia Resin Fiber discs feature a premium zirconia alumina and premium aloxide blend grain on 0.8mm/0.85mm vulcanised fiber backing with a supersize Top Coat and close coat construction. Built for speed and endurance on stainless steel, mild steel, and tough alloys, these discs are engineered for sustained aggressive cutting without workpiece discoloration. A Next Generation Resin Bond keeps grain locked in during heavy weld removal, while active fillers and the heat-reducing Top Coat keep the grinding zone cool and consistent throughout the job.

Primary Advantages of Zirconia Alumina Blend Grain

• Self-sharpening zirconia grain delivers fast, aggressive cutting that holds its rate across the full disc life, so operators aren't forced to increase pressure as the disc wears.
• Active fillers in the bond system reduce heat generation at the source, not just at the surface, cooling both the workpiece and the operator's hands during long grinding sessions.
• In production testing on SS/MS weld applications at 6,500 RPM, the disc delivered 20% better material removal, with performance holding across both substrate types rather than being optimized for one.

Primary Advantages of Top Coat and Resin Bond

• Supersize Top Coat technology reduces heat build-up, improves surface finish quality, and extends disc life on sustained stainless steel and mild steel grinding.
• Next Generation Resin Bond enhances grain adhesion and disc integrity under the stress of heavy weld removal, preventing mid-job grain pull-out.
• Extended operational disc life beyond standard zirconia discs means measurably lower disc consumption and fewer changeovers per shift.

Key Specifications

Dimensions: 104 × 16 mm (4" × 5/8") | 115 × 22.23 mm (4.5" × 7/8") | 125 × 22.23 mm (5" × 7/8") | 180 × 22.23 mm (7" × 7/8") | 230 × 22.23 mm (9" × 7/8")

Backing Type: Vulcanised fiber

Type of Grain: Zirconia Alumina + Premium Aloxide

Type of Coating: Close Coat

Recommended Uses

Industries: Metal Fabrication, MS and SS Fabrication, Sheet Metal

Applications: Sanding

Materials: Castings, Chrome Steel, Glass Fiber, Stainless Steel, Steel

Machines: Angle Grinder