Finishing Guide by Substrate
SUBSTRATE ROUGHNESS AVERAGE (RA)
SCOTCH-BRITE ™ SURFACE CONDITIONING DISCS
1018 MILD STEEL ΜIN (MICRON)
304 STAINLESS STEEL ΜIN (MICRON)
6061 ALUMINUM µIN (MICRON)
MINERAL
GRADE
11 – 15 (0.2 – 0.4)
9 – 11 (0.2 – 0.3)
23 – 38 (0.5 – 1.0)
VFN
Precision
16 – 23 (0.4 – 0.6)
14 – 17 (0.3 – 0.5)
34 – 53 (0.8 – 1.4)
FIN
PSG
21 – 37 (0.5 – 1.0)
19 – 23 (0.4 – 0.6)
65 – 75 (1.6 – 2.0)
MED
3M Precision- Shaped Grain
40 – 51 (1.0 – 1.3)
21 – 27 (0.5 – 0.7)
69 – 84 (1.7 – 2.2)
CRS
42 – 53 (1.2 – 1.9)
36 – 54 (0.9 – 1.4)
121 – 140 (3.0 – 3.6)
XCRS
N/A
5 – 7 (0.1 – 0.2)
16 – 22 (0.4 – 0.6)
SFN
SC
Aluminum oxide/Silicon carbide A/O + SiC
10 – 14 (0.2 – 0.4)
8 – 9 (0.2 – 0.3)
20 – 25 (0.5 – 0.7)
VFN
12 – 17 (0.3 – 0.5)
19 – 23 (0.4 – 0.6)
34 – 45 (0.8 – 1.2)
MED
17 – 29 (0.4 – 0.8)
25 – 31 (0.6 – 0.8)
62 – 84 (1.5 – 2.2)
CRS
10 – 24 (0.2 – 0.7)
16 – 21 (0.4 – 0.6)
37 – 52 (0.9 – 1.4)
FIN
SE
A/O
21 – 28 (0.5 – 0.8)
19 – 24 (0.4 – 0.7)
64 – 97 (1.6 – 2.5)
MED
Aluminum oxide
46 – 57 (1.1 – 1.5)
36 – 43 (0.9 – 1.1)
72 – 113 (1.8 – 2.9)
CRS
Light Grinding and Blending
32 – 54 (0.8 – 1.4)
33 – 42 (0.8 – 1.1)
90 – 110 (2.2 – 2.8)
HD-CRS
C
Ceramic aluminum oxide blend
53 – 84 (1.3 – 2.2)
50 – 59 (1.2 – 1.5)
110 – 171(2.7 – 4.4)
SD-CRS
The information we are furnishing is based on tests performed at 3M laboratory facilities. While we believe that these test results are reliable, their accuracy or completeness is not guaranteed. Your results may vary due to differences in test types and conditions. This information is intended for use by persons with the knowledge and technical skills to analyze, handle and use such information. You must evaluate and determine whether the product is suitable for your intended application. The foregoing information is provided “AS-IS”. In providing this information 3M makes no warranties regarding product use or performance, including any implied warranty of merchantability or fitness for a particular use.
3M.com/ScotchBriteAbrasives |
18
APPLICATIONS
SYSTEMS
AUTOMATION
ABRASIVES
TOOLS AND ACCESSORIES
SAFETY
Powered by FlippingBook