J87BT Silicon Carbide Sanding Belt Flexible Sandpaper Polishing Band for Copper Aluminum Jade Wood Crystal

Technical Specifications

• Model Series: J87BT Flexible Cloth Silicon Carbide Sanding Belts
• Abrasive Grain: Premium sharp black silicon carbide (SiC) micro-grains
• Backing Structure: High-flexibility J-weight waterproof cloth backing (wet & dry application)
• Bonding Agent: Waterproof phenolic resin over resin, anti-static coating
• Grit Range Available: P100, P180, P240, P320, P400, P600, P800, P1000
• Available Dimensions & Pack Sizes (Perimeter x Width):
  • 915 x 100 mm: 5 pcs / pack
  • 1250 x 50 mm: 8 pcs / pack
  • 1000 x 50 mm: 10 pcs / pack
  • 610 x 50 mm: 15 pcs / pack
  • 765 x 25 mm: 20 pcs / pack
• Joint Type: Precision bi-directional tape butt joint, smooth and bump-free
• Sanding Application: Wet & Dry Contour Sanding, Edge Deburring, Fine Pre-Polish Smoothing, Precision Faceting, Surface Blending
• Suitable Workpiece Materials: Copper, Brass, Aluminum, Jade, Agate, Crystal, Optical Glass, Hardwood, Acrylic, and Technical Ceramics

Key Features & Engineering Highlights

• Ultra-Sharp Silicon Carbide Mineral: Fast-cutting SiC abrasive fractures into razor-sharp cutting edges under low grinding pressure, ideal for thermal-sensitive non-ferrous metals and brittle stones.
• Super-Flexible J-Weight Cloth: Conforms seamlessly to intricate curves, profiled workpieces, flutes, and rounded jewelry contours without creasing or cracking.
• Waterproof Wet & Dry Versatility: Engineered for both dry bench grinder polishing and water/oil lubricated lapidary grinding to minimize dust and thermal build-up.
• Anti-Static & Anti-Clogging: Uniform abrasive coating dissipates static charge and prevents dust buildup, ensuring consistent scratch patterns and extended belt service life.

Applications & Workshop Guidelines

Widely utilized in lapidary studios, jewelry workshops, brass and copper instrument fabrication, glass beveling, and fine woodworking. Excellent for shaping jade cabochons, polishing glass bevels, smoothing turned wood spindles, and deburring aluminum and copper castings.