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COATED
ABRASIVES
60
5 Digit System
Example 2: KJ370 180
K
Cloth
J
Light cloth (backing)
3
Aluminium oxide (grain)
7
Internal description
0
Internal description
180 Grit size
Explanation of backing
1. Letter:
P
Paper
K
Cloth
M
Mixed fibres (cloth + polyester)
S
Polyester
F
Fibre
2. Letter:
A
75 g/m
2
paperweight
B
100 g/m
2
paperweight
C
125 g/m
2
paperweight
D
180 g/m
2
paperweight
E
250 g/m
2
paperweight
F
300 - 400 g/m
2
paperweight
L
Very light cloth
F
Very flexible cloth
J
Light cloth
T
Light, flexible X cloth
X
Heavy cloth or polyester
Y
Extra heavy cloth or polyester
Explanation for grain
1. Number:
0
Flint
1
White aluminum oxide
2
Light brown aluminum oxide
3
Brown aluminum oxide
5
Granulated grain (Al
2
O
3
)
6
Zirconia alumina
7
Ceramic grain
8
Silicon carbide
9
Granulated grain (SIC)
Internal description
2. Number:
Internal description
3. Number:
TECHNICAL INFORMATION