>Magnesium body shell makes the MZ-S a definite no-no for me.
>Magnesium is one of the most reactive of metals.  The reason it
>is covered with some form of coating is that it would corrode to
>nothing within a year otherwise.  This is unlike Aluminium which
>is _so_ reactive it seals itself with a layer of oxide if
>damaged.
>
>Making the body frame from Magnesium alloy makes sense, as this
>will be well protected against damage by the covering works and
>body shell.
>
>Prospective buyers of the MZ-S will need to take great care
>(paradoxically, more so than if it were plastic or aluminium
>based alloy) with the body.

I am no material engineer, but "magnesium alloy" is not "pure magnesium". 
Once you mixed two or more metals together and their properties would be 
quite different, I think. Any experts here?

regards,
Alan Chan

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