Absolutely correct. The Emperor has decreed thou shall not defile the sump.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls
Sent: Tuesday, December 18, 2012 1:05 PM
To: [log in to unmask]
Subject: Re: [TN] Source of ESD Mats Suitable for in-line wash baskets

I would strongly caution against something like this.  You specifically want something formulated to withstand the chemicals of water wash.  This also means that there is nothing that the mats contribute to the cleaning sump.  Think about how easy it is to contaminate a wash sump. Suddenly, everything is contaminated.

Doug Pauls



From:   Mike Sewell <[log in to unmask]>
To:     <[log in to unmask]>
Date:   12/18/2012 12:53 PM
Subject:        Re: [TN] Source of ESD Mats Suitable for  in-line wash 
baskets
Sent by:        TechNet <[log in to unmask]>



You could try something like an open ESD floor mat, cut down to size.  I'm not sure how long the natural rubber would hold up to your wash process or how much spray jet shadowing is tolerable. 
http://www.wearwell.com/Static-Control/Conductive-Mats/Modular-WorkSafe-Light-ESD.html 

 Mike> Date: Tue, 18 Dec 2012 15:33:01 +0000
> From: [log in to unmask]
> Subject: [TN] Source of ESD Mats Suitable for  in-line wash baskets
> To: [log in to unmask]
> 
> Does anyone have a source for soft polymer ESD grid mats (similar to
screening but with ~ 1 inch openings) that would be suitable to go through an inline wash system?
> 
> The function of these mats would be to serve as a cushion to the 
> bottom
side SMT components as they get shifted by the wash jets. 
> 
> Finding them ESD safe (safer/safe-ish ) is the challenge. 
> 
> Thanks in advance. 
> 
> Rich  Kraszewski/PLEXUS
> 
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