Abrasive Grade Comparison

The following table compares different standards with average grit sizes in micrometers.

No responsibility is taken for the correctness of this information.
 
Average
Particle sizes in Micron (μm)
Micro-Mesh
ANSI/CAMI
FEPA
(europ. standard)
Sanding paper
wet-dry
Norton       Soft Touch (Kemper)
50
 
240
P280
 
 
6
 
 
P320
 
Fine 
40
100MX
280
P360
 
36
 
 
 
 
35
120MX
320
P400
 
30
 
 
P500
 
Super Fine
28
150MX
360
 
 
25
 
 
P600
 
23
1500
400
 
400
 
22
 
 
P800
 
Ultra Fine
18
 
500
P1000
 
15
   
P1200
 
Micro Fine
 
1800
600
 
600
13
 
800
P1500
800
 
2400
 
 
 
 
12
 
 
P2000
 
 
 
 
1000
 
1000
 
10
 
 
P2500
 
 
9
3200
1200
 
1200
 
8
3600
1350
 
 
 
5
4000
1500
 
1500
 
4
6000
 
 
 
 
3
8000
 
 
 
 
2
12000
 
 
 
 
 
MICRON            (μ) measurement, 1 μ is about 0.001mm
FEPA               Federation of European Producers of Abrasives
CAMI               Coated Abrasives Manufacturer’s Institute
ANSI                American National Standard Institute
JIS                   Japanese Industrial Standard
 ® 2014 Martina Weller