🌀 Fibre Sanding Disc Backing Pads – For Resin Fibre & Semi-Flexible Discs

Right Lines Backing Pads are designed for securely mounting resin fibre sanding discs and semi-flexible discs to angle grinders and rotary polishers. Available in a range of diameters from 100mm to 180mm, and three firmness levels, these pads ensure stable disc support, extended disc life, and smooth sanding or grinding results.

Choose from soft, medium, or hard bases depending on your application—whether you need control for fine finishing, general-purpose sanding, or aggressive metal grinding.

✅ Key Features:

• Compatible with resin fibre sanding discs and semi-flexible discs

• Fits standard angle grinders and rotary polishers

• Choice of soft, medium, or hard backing pads for different abrasives and materials

• Designed to minimise gouging, edge wear, and disc warping

• Ventilated hard pads help reduce heat buildup on metal

• Optimised for both sanding and grinding applications on metal, wood, and more

📐 Specifications:

• Available Sizes & Mounting Threads:

  • 100mm pad (actual diameter: 92.5mm) – M10 female thread (for 100mm / 4" angle grinders)

  • 115mm pad (actual diameter: 107.5mm) – M14 female thread

  • 125mm pad (actual diameter: 117mm) – M14 female thread

  • 180mm pad (actual diameter: 172mm) – M14 female thread

• Pad Grades:

  • Soft: Flexible edge ideal for finer sanding to avoid gouging

  • Medium: General-purpose choice for a wide range of applications

  • Hard: Best for coarse discs and aggressive grinding on metal – features ribbed surface for cooling airflow

• Disc Compatibility: Suitable for use with:

  • Fibre sanding discs with centre hole

  • Semi-flexible silicon carbide discs

  • Suitable for sanding/grinding discs slightly larger than the backing pad diameter for edge protection

🛠️ Applications:

• Metal grinding with coarse fibre discs (use hard backing pad)

• Surface preparation and weld cleanup on stainless steel and mild steel

• Fine finishing with flexible sanding discs (use soft or medium pad)

• Paint and rust removal

• Shaping and smoothing wood, stone, or composite materials

🔄 Compatibility:

• M10 fitting: 100mm angle grinders

• M14 fitting: All standard 115mm (4½"), 125mm (5"), and 180mm (7") angle grinders

• Fits all resin fibre discs with centre hole

• Suitable for variable or fixed speed grinders

💡 Pro Tips:

• Choose a hard pad for faster metal removal and better disc cooling

• Use a medium pad for reliable control across various grit grades

• Select a soft pad to reduce scoring and improve surface finish when using finer grit discs

• Always match the pad size to the corresponding disc diameter – backing pad is slightly smaller to avoid overhang and edge wear

Upgrade your grinding and sanding performance with Right Lines Fibre Disc Backing Pads—built for durability, control, and compatibility across all major angle grinder sizes.