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| Worldwide George Jowitt & Sons Ltd 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
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All our products are marked in accordance with ISO 525: 1999 (E). Our "Z-Bond" and "AlphaNumeric" Systems are explained below |
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| 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 |
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| 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 © George Jowitt & Sons
Ltd 1995 - 2007