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Stainless Steel Mill Finishes
| Finish Type | Meaning |
|---|---|
| #2B | A mill cold-rolled finish. No abrasive used. |
| #3 | A 2B finish processed with #100 AO belt. |
| #4 | Dairy or Food Service finish. A 2B finish processed with #100 AO belts, followed by #120 AO finish. |
| #6 | A # 4 finish which has been buffed. A fine satin finish. |
| #7 | A #4 finish followed by #180 then #240 AO belts, the cut-buffed and finally color-buffed to a reflective finish. A bright finish with some grit lines still visible. |
| #8 | A #4 finish followed by #180, 240, 320 and 400 AO belts, followed by cut-buffing, followed by color-buffing to a mirror finish. No grit lines available. A convolute or similar wheel may be used instead of the cut/color buffing steps if acceptable. |
Standard Aluminum Finishes
| Finish Type | Meaning |
|---|---|
| M21 Smooth Specular | Belt polished to 320 grit then buffed with Tripoli buffing compound |
| M22 Specular | Buffing without prior belt polishing |
Directional Textured Finishes
| Finish Type | Meaning |
|---|---|
| M31 Fine Satin | Belt polished to 320 then 400 grit |
| M32 Medium Satin | Belts polished to 180 to 320 grit |
| M33 Coarse Satin | Belt polished to 80 or 100 grit |
| M34 Hand Rubbed | Rubbed with medium grades of steel wool or non-woven hand pad material |
Standard Finishes on Brass and Bronze
| Finish Type | Meaning |
|---|---|
| M21 Smooth Specular | Polishing to 320 grit then cut buffing with AO M33 Specular, M21 plush light buffing |
| M31 Fine Satin | Polishing with AO or SC to 180 then 240 |
| M32 Medium Satin | Polishing with AO or SC from 120 then 180 |
| M33 Coarse Satin | Polishing with AO or SC from 80 to 120 |
| M34 Hand Rubbed | Rubbed with medium or coarse non-woven pad |
| M35 Brushed | Wire brush or polish with coarse grit abrasive |
| M36 Uniform | Polish with 60 or 80 AO or SC |