Product guide: Hook and loop abrasive sanding pads — grit selection, sizes, and metalworking applications
Abrasive Products Guide
Hook & Loop Abrasive Sanding Pads — The Professional's Guide to Metal Finishing
Colour-coded by grit, quick to swap, and built to last through demanding metalwork — these hook and loop sanding pads cover derusting, blending, wire drawing, and fine finishing in a single system. Here's everything you need to choose the right pad.
3 colour-coded grits + mixed packs4", 5", 6" sizesHook & loop compatibleMetal, alloy & electroplating use
What are hook and loop abrasive sanding pads?
Hook and loop abrasive sanding pads are non-woven abrasive discs with a velcro-style backing for tool-free attachment and removal. Unlike coated abrasive paper discs, non-woven pads have a three-dimensional open-web structure that resists clogging, runs cooler, and leaves a consistent scratch pattern — making them the preferred choice for metal surface conditioning, derusting, and decorative finishing work.
The colour coding system — green, red, and grey — provides instant visual identification of grit level, eliminating errors during multi-stage finishing sequences.
Grit options — colour-coded system
Each colour corresponds to a specific grade and is optimised for a different stage of the finishing process. Select based on your starting surface condition and the finish you need to achieve.
Heavy-duty surface conditioning and aggressive material removal. Cuts through rust, mill scale, and heavy oxidation quickly.
Derusting Scale removal First passAll-purpose blending, cleaning, and intermediate finishing. Removes scratches from the coarse stage and prepares for fine finishing.
Blending Cleaning General finishingSmooth, uniform final finish and delicate surface preparation. Leaves a fine, consistent scratch pattern suitable for polishing or coating.
Final finish Pre-polish Delicate alloysAll three grits in one pack — ideal for new users, varied project work, or keeping a full progression sequence on hand.
Versatile Full sequence Best valueAvailable sizes
Three disc diameters cover the most common random orbital sanders and angle grinder backup pads used in metalworking. Match the pad size to your tool's backing plate.
100 mm
4 inch
Compact sanders, tight areas, detail metalwork
125 mm
5 inch
Most popular — fits standard 5" ROS and angle grinders
150 mm
6 inch
Larger surface areas, production finishing, flat panels
Full product specifications
| Specification | Detail |
|---|
| Grit / colour options | Green ~P120 Red ~P240 Grey ~P400 Mixed |
| Sizes | 4" / 100 mm | 5" / 125 mm | 6" / 150 mm |
| Backing system | Hook and loop (velcro-style) — tool-free attachment and removal |
| Abrasive structure | Non-woven open-web — resists clogging, cool-running |
| Compatibility | All standard hook and loop abrasive discs and backup pads |
| Primary applications | Derusting, deburring, blending, wire drawing, cleaning, finishing, electroplating prep |
| Compatible materials | Stainless steel, aluminium, copper, mild steel, electroplated surfaces, alloys |
These pads are compatible with all types of standard hook and loop abrasive discs and vinyl backup pads. The hook and loop system allows discs to be swapped in seconds without tools, reducing downtime during multi-stage finishing sequences.
Applications
Derusting & rust removal
Green (P120) pads cut through rust and oxidation on stainless steel, aluminium, and copper without damaging the base metal.
Wire drawing finish
Achieve a consistent linear brushed or wire-drawn finish on electroplated and decorative metal surfaces. Red and grey grades give progressive line refinement.
Deburring
Remove sharp burrs and edges after cutting, stamping, or machining. The non-woven pad conforms to contours for consistent contact.
Blending
Blend weld seams, scratch patterns, and surface inconsistencies. Red (P240) is the standard choice for blending and transition work.
Electroplating preparation
Condition surfaces before plating to ensure uniform adhesion. A consistent scratch pattern from grey (P400) is ideal pre-plating prep.
Fine finishing
Grey (P400) delivers a smooth, uniform final surface on delicate alloys, aluminium profiles, and decorative metalwork ready for anodising or lacquering.
Recommended finishing sequence — metal surfaces
For the best results on metal, work through the three grades in sequence. Each stage removes the scratch pattern left by the previous one.
| Stage | Pad | Purpose | Notes |
|---|
| Stage 1 | Green — P120 | Strip rust, scale, and heavy contamination | Establish base surface; apply moderate pressure |
| Stage 2 | Red — P240 | Remove P120 scratch pattern; blend and clean | Wipe surface clean between stages |
| Stage 3 | Grey — P400 | Final surface conditioning and pre-finish prep | Light, consistent pressure; keep pad flat |
Frequently asked questions
What is the difference between a non-woven abrasive pad and a coated abrasive disc?Coated abrasive discs (sandpaper) have abrasive grains bonded to a flat paper or film backing. Non-woven abrasive pads have abrasive grains distributed throughout a three-dimensional open-fibre web. The web structure makes non-woven pads more conformable, cooler-running, and much less prone to clogging — which is why they are preferred for metal surface conditioning, derusting, and decorative finishing over coated paper discs.
What do the green, red, and grey colours mean on abrasive sanding pads?The colours indicate grit grade: green is coarse (~P120) for heavy material removal and derusting; red is medium (~P240) for blending and general cleaning; grey is fine (~P400) for final surface finishing and pre-polish preparation. Colour coding is a standard convention in non-woven abrasive products and allows quick visual identification during multi-stage workflows.
Can these pads be used on aluminium and copper as well as steel?Yes. These pads are suitable for stainless steel, mild steel, aluminium, copper, and most metal alloys. The non-woven structure is gentler than grinding wheels or fibre discs, making it well-suited to softer metals like aluminium and copper where gouging and over-removal are a risk. Use light to moderate pressure and keep the pad moving to avoid heat build-up on thin or soft materials.
What is a wire-drawn finish and how do I achieve it with sanding pads?A wire-drawn (or brushed) finish is a decorative surface texture consisting of fine, parallel linear scratches, commonly seen on stainless steel appliances and aluminium trim. To achieve it, move the pad in a single consistent direction (not in circles) along the grain of the metal. Start with red (~P240) to establish the pattern, then refine with grey (~P400) for a finer, more uniform line. Use a flat backup pad and consistent pressure throughout.
Which pad size should I choose for my angle grinder or random orbital sander?Match the pad diameter to your tool's hook and loop backing plate: 4" / 100 mm for compact grinders and detail work; 5" / 125 mm for standard random orbital sanders and mid-size angle grinders (the most common size); 6" / 150 mm for larger orbital sanders and production finishing on flat panels. Using the wrong size may result in uneven contact or backing plate wear.
How do I know when an abrasive sanding pad needs to be replaced?Replace the pad when it no longer cuts effectively at normal pressure, when the fibres are visibly matted or compressed, or when the pad becomes glazed and shiny. Non-woven pads typically last longer than coated abrasive discs because the three-dimensional structure exposes fresh abrasive as the surface wears. Running a worn pad harder to compensate generates excessive heat and can damage the workpiece.
Need a specific grit, size, or custom specification?
Mixed packs, bulk orders, and OEM specifications available on request.
