3M
3M 08857 SC-BS Surface Conditioning Belt 18 in
A non-woven aluminum oxide belt for surface conditioning, medium grade and semi-flexible with resin bond on scrim backing
- TypeSanders
- 18-inch length suits long-belt sanders
- ½-inch width fits narrow workpieces
- Aluminium oxide abrasive resists loading
- Non-woven construction gives semi-flexible finish
- Medium grade balances material removal and surface quality
3M SC-BS Surface Conditioning Belt
The 3M 08857 is a non-woven abrasive belt designed for surface conditioning tasks. It uses aluminum oxide grain bonded with resin on a scrim backing. The semi-flexible construction suits contour sanding and finishing work on metal or wood surfaces.
18 in length by 1/2 in width
This belt measures 18 inches long and half an inch wide, matching the SC-BS series dimensions. The medium-grade maroon abrasive provides consistent cut without aggressive stock removal. Load-resistant coating helps maintain performance during extended use.
For finishing and blending applications
Ideal for operators needing a durable belt for deburring, cleaning or blending weld seams. Not suited for heavy material removal or precision grinding requiring graded grit sizes. Users needing different widths or lengths should select alternative SC-BS sizes.
Highlights
- 18-inch length suits long-belt sanders
- ½-inch width fits narrow workpieces
- Aluminium oxide abrasive resists loading
- Non-woven construction gives semi-flexible finish
- Medium grade balances material removal and surface quality
Specifications
| Type | Sanders |
|---|---|
| Brand | 3M |
| Model | 08857 |
Questions about this item
How does the Medium-grade aluminum oxide belt perform on metal finishing?
The Medium-grade aluminum oxide abrasive removes surface imperfections and blends scratches without aggressive stock removal, leaving a consistent satin finish on steel, stainless or aluminum.
What does the SC-BS non-woven construction mean for belt life and loading?
The open non-woven scrim backing resists loading, dissipates heat and conforms to contours, so the belt stays sharp longer on contoured parts and soft metals.
Will the 18-inch by 1/2-inch belt fit my portable belt sander?
It fits any sander that accepts an 18-inch loop and a 1/2-inch wide belt; verify your machine's belt length and width before ordering.
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