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Reply To: | TechNet E-Mail Forum. |
Date: | Wed, 17 Dec 2003 17:16:23 -0500 |
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What's the PH of the solution?
-----Original Message-----
From: Dhawan, Ashok [mailto:[log in to unmask]]
Sent: Wednesday, December 17, 2003 4:12 PM
To: [log in to unmask]
Subject: [TN] Tarnished Surface
Technetters
Anyone who has experienced and resolved tarnishing of Aluminium surface upon
cleaning with DI water + saponifier. The aluminium surface is protected with
conversion coating (clear) which is turning black when exposed to saponifier
solution.
Ashok Dhawan P.Eng
Manufacturing Engineer
Solectron
Snailmail:1455 Mountain Avenue
Winnipeg MB R2X 2Y9 CANADA
* E-mail: [log in to unmask]
* Phone: (204) 631-7208
* Fax: (204) 631-7294
* I-net: <http://www.solectron.com>
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