01｜Product Overview

3M 7521C non-woven abrasive hand pad is a flexible surface conditioning consumable made of high-strength nylon fiber substrate compounded with premium aluminum oxide abrasive grains. It features thin and soft texture, excellent foldability, and can be rolled or twisted freely to reach grooves, gaps and irregular hidden areas. It delivers consistent grinding performance, effectively preventing over-cutting and protecting workpiece edges and corners. It supports both dry and wet grinding, with good water and oil resistance. The open three-dimensional mesh structure keeps grinding stable, and the abrasive grains shed synchronously with fiber wear to maintain stable finishing effect. It is an ideal hand abrasive for metal cleaning, rust removal, deburring and pre-painting treatment, widely used in metal processing, hardware, woodworking and equipment maintenance fields.

02｜Product Advantages

*It is thin, flexible and foldable, easy to twist and roll, adapts to complex contours and hidden gaps for all-around finishing.

*It provides uniform grinding and consistent surface finish, avoids over-cutting, improves workpiece yield effectively.

*It adopts high-strength anti-break fiber material, the abrasive grains bond firmly, wear synchronously and extend service life.

*It performs stable grinding under oily and wet conditions, supports dry and wet dual-purpose processing.

*It can finish fine blending, cleaning and polishing without causing deep scratches on the base surface.

03｜Product Specifications

04｜Product Feature

*The substrate is high-strength nylon fiber, compounded with premium aluminum oxide abrasive grains, grade VFN.

*Elastic open web structure, flexible to fit curved, irregular and hard-to-reach workpiece positions.

Lightweight and soft texture, easy to cut into different shapes according to processing requirements.

*Self-sharpening performance, consistent finishing effect in the whole service cycle.

*No rust risk, suitable for manual surface conditioning of metal, wood and composite materials.

05｜Wide Range of Applications

It is suitable for light rust removal, oxide layer cleaning and surface stain removal on stainless steel, carbon steel, aluminum alloy and copper alloy workpieces, it can clean weld traces and tiny welding slag, achieve fine brushed texture on metal fittings, and it can be folded and twisted to polish inner grooves, narrow gaps and irregular hidden parts that rigid abrasives cannot reach, it also works for wood surface deburring, edge trimming and surface pretreatment before painting, protects wood edges from excessive grinding, and it can be used for plastic and composite part finishing, surface blending and fine polishing, covering hardware processing, auto parts finishing, equipment maintenance and woodworking decoration scenes.