3M
3M 4304 Surface Conditioning Disc Power
Hook-and-loop surface conditioning disc with very-fine aluminum oxide abrasive for finishing and light cleaning
- TypeSanders
- Very fine grade delivers smooth finishing results
- Hook-and-loop backing enables quick disc changes
- Aluminium oxide abrasive resists loading during use
- Six-inch diameter covers large surface areas efficiently
- Blue colour identifies very fine grade instantly
6-Inch Hook-and-Loop Disc
The 3M 4304 is a non-woven surface-conditioning disc designed for use with hook-and-loop backing pads on random-orbital or rotary sanders. Its very-fine aluminum-oxide grade targets light finishing, blending and cleaning tasks on metal, composite or painted surfaces. The blue colour coding identifies the grade at a glance in a busy workshop.
Non-Vacuum Interface Limits
Because the disc has no vacuum holes, dust and debris remain on the work surface and the abrasive face during operation. Users must pause frequently to clear the disc or rely on external extraction to maintain cut quality and prevent loading. The hook-and-loop attachment allows quick changes but cannot compensate for the lack of through-hole evacuation.
Very-Fine Grade Headroom
The very-fine aluminum-oxide coating comfortably handles light oxidation removal, scuff-sanding clear coats and blending scratch patterns left by coarser grits. It runs out when aggressive stock removal, heavy rust stripping or rapid dimensioning are required, at which point a coarser-grade disc or a bonded abrasive becomes necessary.
Highlights
- Very fine grade delivers smooth finishing results
- Hook-and-loop backing enables quick disc changes
- Aluminium oxide abrasive resists loading during use
- Six-inch diameter covers large surface areas efficiently
- Blue colour identifies very fine grade instantly
Specifications
| Type | Sanders |
|---|---|
| Brand | 3M |
| Model | 4304 |
Questions about this item
How do I know the 4304 disc is the right grade for my finishing job?
The disc is graded Very Fine and uses aluminum oxide non-woven material, which is designed for light finishing, blending and surface preparation without aggressive stock removal.
What surface finish will the Very Fine grade actually leave on metal or paint?
The Very Fine aluminum oxide non-woven construction produces a uniform, fine satin finish suitable for final blending, light cleaning and preparing surfaces for coating.
How does the hook-and-loop SC-DH interface affect disc changes and tool compatibility?
The hook-and-loop SC-DH backing allows quick, tool-free disc changes on any compatible 6-inch backup pad and stays secure during orbital or rotary sanding.
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