I read in !emc-pstc that Scott Lacey <[email protected]> wrote (in
<3E4144F6.3539.FA6BC@localhost>) about 'Maintaining conductivity of
freshly machined aluminum' on Wed, 5 Feb 2003:

>Does anyone know of any conductive coating, preferably spray-on, 
>that could be used on mating aluminum chassis surfaces? We 
>manufacture (in very low volume) test equipment that is housed in a 
>commercially manufactured anodized aluminum enclosure. Our 
>machine shop mills the anodizing from mating surfaces and adds 
>additional screw holes to improve bonding. The concern is that the 
>surfaces will not remain conductive over time.

Is there any evidence for such an effect (assuming a normal atmosphere,
not especially spiked with corrosive gases)? I suspect not. If there is,
than many existing products may be vulnerable! 
-- 
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk 
Interested in professional sound reinforcement and distribution? Then go to 
http://www.isce.org.uk
PLEASE do NOT copy news posts to me by E-MAIL!


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