Re: LRO: galvanized cappings / tri-valent chromium

From: Rich Williams II (richw@nwlink.com)
Date: Fri Jun 08 2001 - 11:23:01 EDT

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    ----- Original Message -----
    From: Paul Oxley <paul@adventures.co.za>
    To: <lro@works.team.net>
    Sent: Thursday, June 07, 2001 10:58 PM
    Subject: Re: LRO: galvanized cappings

    > If you can't remove and re-hot dip them, get hold of some Tri-valient
    > (SP?) Chromium. This cleans the surface of the old galv and strips a
    > tiny amount (couple microns) off the old stuff, renewing it nicely.

    Well I remember this from a miserable 3 semester series of inorganic
    chemistry but where does one find such an item?

    > BTW, NOT Hexa-valient Chromium, which is NASTY stuff.

    Right you are - highly carcinogenic if not tetragenic.



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