CHEMICAL
CHROMATING OF MAGNESIUM
Magnesium's highly active chemical behaviour and its
liability to corrosion make it extremely important that it is adequately
protected. Until now chromium based chemicals have been used to perform
this protection medium. A.S.E. are proud to announce that they can
now offer a complete protection cycle that is FREE from any chromium
containing compounds. "MAG-NON" is a completely new process that produces
properties equal or better than chromium based solutions.
Major
companies have found that MAG-NON meets or exceeds their specification
in regards to bonding adhesion properties and corrosion resistance.
Also it goes a long way in helping to achieve the new environmental
regulations in regards to the reduction in the use of chromium compounds.
Set out below is comparisons of Magnesium alloys in salt spray tests.
Chromium
coated Vs MAG-NON. - Alloy AZ91HP
Chromate
conversion
MAG-NON |
10-20
hours
10-25 hours |
Chromate
conversion & sealing
MAG-NON & sealing |
375-475
hours
450-600 hours |
Chromate
conversion & epoxy powder
MAG-NON & epoxy powder |
480-600
hours
520-680 hours |
Chromate
& sealing & epoxy powder
MAG-NON & sealing & epoxy powder |
800-1000
hours
800-1000 hours |
| Alloy
AM50HP |
|
MAG-NON
MAG-NON & sealing |
10-20
hours
550-745 hours |
| |
|
