Sandpaper 3M

Special for dry grinding、Heavy duty material removal、long lifespanSandpaper, mainly oriented towardsIndustrial manufacturing, metal processing, automotive maintenanceProfessional fields with high requirements for polishing efficiency and cost

Key features and advantages

1. Unique "three section" mineral sand：

• Using three different shapes and hardness of alumina minerals (including rare ones)Plate-like alumina）Mix in proportion.

• Plate-like mineral sandLike a sharp blade, responsible for quick cutting; The other two types of mineral sands are responsible for cutting and supporting.

• This structure allows sandpaper to maintain its durability throughout its entire lifespanSharp and consistentCutting force, rather than rapid blunting.

2. Q-type weight back base：

• Q "representsHeavy Quartz Back BaseIt is a very tough and tear resistant backing.

• Suitable for heavy-duty polishing and high-strength use, not easily damaged, especially suitable for pairing with pneumatic or electric polishing machines.

3. Anti clogging coating：

• The surface of sand particles has a special anti filling coating, which can effectively reduce the debris generated when polishing materials such as metal, wood, paint, etc., blocking the gaps of sandpaper, extending the effective working time, and reducing the frequency of replacement.

4. Excellent heat dissipation performance：

• The unique arrangement of mineral sand and the design of the back base help with heat dissipation, avoiding rapid wear and tear of sandpaper or surface burns of workpieces (especially for metals) caused by overheating.

Main product application areas

1. Metal processing and manufacturing industry (core applications)

• weld grindingHigh efficiency in removing weld beads and scars from metals such as steel, stainless steel, and aluminum.

• Burr cleaningSharp burrs and edges after polishing castings and machined parts.

• Surface smoothnessBefore spraying or further grinding, perform preliminary surface leveling.

• Rust and oxide layer removalQuickly remove rust and oxide scale from metal surfaces.

2. Car maintenance and renovation

• Body panel repairQuickly polish old paint and putty, and perform rough leveling.

• Body welding point treatmentPolish the solder joints to prepare for smoothness and rust prevention.

• Frame and chassis maintenancePolish heavy metal parts.

3. Wood processing (but attention should be paid)

• can be used forhardwoodofHeavy duty material removalandPreliminary plastic surgeryFor example, furniture manufacturing and woodworking workshops.

• AttentionDue to its strong cutting force, it is not suitable for fine woodworking or cork, and is prone to leaving deep scratches. Usually used in the rough grinding stage.

4. Composite materials and fiberglass reinforced plastic

• The rough grinding stage when polishing fiberglass reinforced plastic (FRP) and carbon fiber components, such as ship hulls and automotive parts.

5. General industrial repair and maintenance

• Any occasion that requires rapid removal of materials, such as equipment refurbishment, removal of stubborn coatings, and cleaning of metal surfaces.

Typical usage scenario examples

• A car repair shopMaster, use a pneumatic polishing machine with one sheet80 mesh3M 431Q, quickly polish off the old paint layer and putty on the car door to prepare for applying new putty.

• A metal structure factoryThe workers are equipped with angle grinders36 mesh or 40 mesh3M 431Q is used to rapidly polish steel structure welds to make them smooth.

• A furniture factoryThe workers are equipped with sanding machines60 eyes3M 431Q, for rough hardwood tabletopsLeveling up.