Grit Size Conversion Table



Copyright© 1977-2013 Media Blast and Abrasive, Inc

Please note that this table is for reference only. Consult your abrasive manufacturer for their particular product specifications.

GRIT
Mesh USS*
Maximum
Inches Average
Minimum
Maximum
Microns Average
Minimum
8
7
0.1300
0.0870
0.0650
3300
2210
1650
10
8
0.1300
0.0730
0.0550
2286
1854
1397
12
10
0.0900
0.0630
0.0450
2286
1600
1143
14
12
0.0750
0.0530
0.0370
1905
1346
940
16
14
0.0650
0.0430
0.0310
1650
1092
787
20
16
0.0530
0.0370
0.0260
1346
940
660
24
20
0.0430
0.0270
0.0180
1092
686
487
30
25
0.0320
0.0220
0.0140
813
559
356
36
30
0.0300
0.0190
0.0120
762
483
305
46
40
0-022
0.0140
0.0095
559
356
241
54
45
0.0195
0.0120
0.0080
495
305
203
60
50
0.0160
0.0100
0.0065
406
254
165
70
60
0.0130
0.0080
0.0050
330
203
127
80
70
0.0115
0.0065
0.0040
292
165
102
90
80
0.0095
0.0057
0.0035
241
145
89
100
100
0.0080
0.0048
0.0025
203
122
63
120
120
0.0065
0.0040
0.0020
165
102
50
150
140
0.0055
0.0035
0.0015
140
89
38
180
170
0.0045
0.0030
0.0010
114
76
25
220
200
0.0040
0.0025
0.0008
102
63
20
240
200
0.0033
0.0020
0.00099
85
50
25
280
**
0.0028
0.00154
0.00075
70
39
9
320
**
0.0024
0.00122
0.00055
60
31
14
400
**
0.0018
0.00087
0.00043
45
22
11
500
**
0.0016
0.00075
0.00039
40
19
10
600
**, ^
0.0014
0.00063
0.00035
35
16
9
700
**, ^
0.0013
0.00055
0.00028
32
14
7
800
**, ^
0.0012
0.00047
0.00020
30
12
5
900
**, ^
0.0009
0.00035
0.00012
23
9
3
1000
**, ^
0.0009
0.00028
0.00008
23
7
2
* USS - United States Standard Sieve screen size
** Abrasives finer than 240 grit cannot be accurately screened. Grading is accomplished by hydraulic or pneumatic methods.
^ Microfine abrasives are typically only used in wet blast cabinets.


Scotch Brite Pads
Pad Colors Grit Chart
Scotch-Brite® Light Duty Hand Pad— A very mild abrasive for gentle, yet through cleaning. Commonly used with liquid detergent. (White color) 7445 – White pad, called Light Duty Cleansing – (1000) 1200-1500 grit
Scotch-Brite® Ultra-Fine Hand Pad— Fine textured for ultra-fine finishing or metal, wood, plastics, and composites. (Light Gray color) 7448 – Light Grey, called Ultra Fine Hand – (600-800) 800 grit.
Scotch-Brite® Light Duty Hand Pad (Green) 6448 – Green, called Light Duty Hand Pad – (600) 600 grit
Scotch-Brite® General Purpose Hand Pad—This is the most popular Scotch Brite abrasive because it is coarse enough for cleaning and finishing but fine enough to produce good surface finishes. (Maroon color) 7447 – Maroon pad, called General Purpose Hand – (320-400) 320 grit
Scotch Brite® Extra Duty Hand Pad (Brown) 6444 – Brown pad, called Extra Duty Hand – (280-320) 240 grit
Scotch Brite® Blending Pads— Slightly finer abrasive than the heavy duty pad. Excellent for removing scratches on metal, wood, or synthetic surfaces. (Gray color) 7446 – Dark Grey pad, called Blending Pad (180-220) 150 grit<
Scotch-Brite® Heavy Duty Hand Pad— Most durable and aggressive pad for quick stock removal. (Tan color) 7440 – Tan pad, called Heavy Duty Hand Pad – (120-150) 60 grit


Scotch Brite® Pad Aggressiveness
Less
Aggressive		 --------> More
Aggressive
7445 7448 6448 7447 6444 7446 7440
Finer
Finish		 --------> Coarser
Finish



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