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Jowitt
Bridge Way
Broombank Road
Chesterfield Trading Estate
Chesterfield

S41 9QJ
United Kingdom
Tel: +44 (0)1246 572230
Fax: +44 (0)1246 572249

web: www.jowitt.com
e-mail: sales@jowitt.com
 

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The Jowitt Marking System

All our products are marked in accordance with ISO 525: 1999 (E).

Our "Z-Bond" and "AlphaNumeric" Systems are explained below

The Z-Bond Explained
Abrasive Type Grit size Grade Bond type Other
WA 36 K B Z
A - contains aluminium oxide.
C - contains silicon carbide.
Z - contains Zirconia.
Coarse:
14
16
20
22
24


Medium:
30
36
40
46
50
54
60


Fine:
70
80
100
120
150
180

Soft
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
Hard
B = Resinoid Manufacturers' special markings

The AlphaNumeric Bond Explained
Abrasive Type Grit size Grit split Grade Structure Nature of bond Other
MA 24 1 M 7 B 14
A - contains aluminium oxide
C - contains silicon carbide.
Z - contains zirconia.
Coarse:
14
16
20
24


Medium:
30
36
46
54
60


Fine:
80
100
120
150

1 or 2 Soft
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
Hard
1 to 14 B = Resinoid Manufacturers' special markings
EO&E and Copyright © Jowitt 1995 - 2016