July 10, 2008

Unless the paper is conductive and the surface on which the paper rests is 
conductive and properly grounded, one should not rest any ESD sensitive 
PWA's on top of paper.  Paper is normally considered an insulator, not a 
conductor and therefore this is a violation of the ESD S 20.20 document 
invoked via J-STD-001 which prohibits insulators from the work station 
unless it can be proven that they are not capable of producting damanaging 
ESD voltages.


>From: "Kane, Amol (349)" <[log in to unmask]>
>Reply-To: TechNet E-Mail Forum <[log in to unmask]>,              "Kane, Amol 
>(349)" <[log in to unmask]>
>To: [log in to unmask]
>Subject: [TN] Conformal Coating Waste
>Date: Wed, 2 Jul 2008 09:16:53 -0400
>
>Dear Technetters,
>We regularly use absorbent paper to rest the boards in the conformal 
>coating booth as we spray them (UV cure coatings). A question came up 
>recently about the paper being hazardous waste due to uncured coating on 
>it. I want to know if:
>1. Anybody else is using a similar method to coat the boards and how is 
>disposal being handled
>2. Is there an alternative to using paper in the coating booth. The 
>disposal issue will still remain
>
>I do not want to put the paper in the UV oven for curing.
>
>Any advice will be greatly appreciated.
>
>Thanks,
>Amol
>
>
>
>
>
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