5-Inch DA Sanding Backing Plate – 125mm Polish & Grinding Pad

5-Inch (125mm) DA Sanding Backing Plate for Polishing & Grinding

Upgrade your sanding and polishing workflow with this durable 125mm (5-inch) DA Sander Backing Plate. Engineered from high-quality PU (polyurethane), this backing pad delivers a smooth, stable base for your sanding discs — making polishing and grinding tasks faster, more precise, and more consistent. Whether you're detailing a car, finishing furniture, or tackling a surface prep project, this backing plate is a reliable power tool accessory you'll reach for again and again.

Key Features

• Size: Approx. 125mm / 4.92" — compatible with standard 5-inch DA (dual-action) orbital sanders
• Material: Premium PU (polyurethane) construction for flexibility and durability
• Application: Designed for polishing and grinding tasks — ideal for automotive detailing, woodworking, and surface finishing
• Versatile Fit: Works with hook-and-loop (Velcro-style) sanding discs for quick disc changes
• Available Colors: Yellow and White — easy to identify in your workshop
• Smooth Operation: PU flexibility helps conform to curved surfaces for an even finish
• Durable Build: Resistant to everyday wear, heat, and friction during extended sanding sessions

What's in the Box?

• 1 × DA Sanding Backing Plate (125mm / 5-inch)

Specifications

Who Is This For?

This sanding backing plate is perfect for auto detailers, woodworkers, DIY enthusiasts, and professional tradespeople who want a reliable, flexible backing plate to maximize performance from their orbital sander. Its soft PU construction absorbs vibration and helps the sanding disc make even contact with the work surface — ideal for both flat panels and gently curved surfaces.

Safety & Tool Use

For guidance on safe power tool operation and workshop safety best practices, refer to the OSHA Power Tools Safety Guidelines.

Frequently Asked Questions

Q: What is a DA sanding backing plate and what does it do?

A: A DA (dual-action) sanding backing plate is an accessory that attaches to your orbital sander and holds the sanding or polishing disc in place. The 125mm backing plate acts as a stable, flexible base that allows the disc to make even contact with the surface being worked on — improving polish, grind, or finish quality during sanding tasks.

Q: What material is this sanding backing plate made from?

A: This backing plate is made from PU (polyurethane), which provides a good balance of flexibility and durability. The PU construction allows the pad to conform slightly to curved surfaces, ensuring more even contact and a smoother result whether you're polishing or grinding.

Q: Will this backing plate fit my sander?

A: This backing plate is designed for standard 5-inch (125mm) DA orbital sanders. It is compatible with hook-and-loop (Velcro-style) sanding and polishing discs. Always verify your sander's spindle thread and backing plate size before purchasing to ensure a proper fit.

Q: Is this suitable for automotive detailing?

A: Yes! This DA sanding backing plate is well-suited for automotive detailing tasks including polishing and surface prep. Its PU flexibility helps it follow the contours of car panels for a more uniform finish when used with compatible polishing or sanding discs.