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From: darryl@ism780c.UUCP (Darryl Richman)
Newsgroups: net.cycle
Subject: Re: Splotchy aluminum parts!
Message-ID: <3529@ism780c.UUCP>
Date: Wed, 10-Sep-86 19:48:33 EDT
Article-I.D.: ism780c.3529
Posted: Wed Sep 10 19:48:33 1986
Date-Received: Sat, 13-Sep-86 05:30:32 EDT
References: <1226@utastro.UUCP> <1184@ttrdc.UUCP> <176@tekirl.UUCP>
Reply-To: darryl@ism780c.UUCP (Darryl Richman)
Organization: Interactive Systems Corp., Santa Monica, CA
Lines: 16

In article <176@tekirl.UUCP> donch@tekirl.UUCP (Don Chitwood) writes:
>
>A word of warning here from sad experience.  Splotchy aluminum parts can
>be the RESULT of using some cleaners, namely the popular 409 household
>cleaner.  Be aware that most household cleaners are alkaline.  Alkaline
>solutions will etch aluminum,  and can leave a residual pattern that you
>can only remove by some abrasive technique.
>Don Chitwood

Thanks for the warning.  I have never noticed this on my bikes.  Perhaps
this is because (I believe) BMW puts a clear plastic (?) coating over their
cast rims.  I will certainly avoid using it on the engine parts, however.

	    --Darryl Richman, INTERACTIVE Systems Corp.
	    ...!cca!ima!ism780!darryl
	    The views expressed above are my opinions only.