Not so. Bogert is correct. Paper has been tested in various humidity
conditions and is easily capable of damaging class 0 and class 1
components. Both H1189 and 20.20 warn against allowing paper to come in
contact with electronics. 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Brian Ellis
Sent: Thursday, July 10, 2008 5:24 AM
To: [log in to unmask]
Subject: Re: [TN] Conformal Coating Waste

Ordinary paper is mostly cellulose which is sufficiently hygroscopic
with normal humidities (down to <20% RH) to not generate/retain an
electrostatic charge. Of course, electrical papers, such as used for
transformer interleaving, may have different characteristics.

I would be much more worried about coating mist particles with friction
against the air and the PCB!

Brian

- bogert wrote:
> 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
>>
>>
>>
>>
>>
>> WARNING:  Export Control
>> This document may contain technical data within the definition of the

>> International Traffic in Arms Regulations (ITAR), and subject to the 
>> Export Control Laws of the U.S. Government.  Transfer of such data by

>> any means to a foreign person, whether in the United States or 
>> abroad, without proper export authorization or other approval from 
>> the U.S. Department of State is prohibited.
>>
>> CONFIDENTIALITY NOTICE:
>> This e-mail, and any attachments, is for the sole use of the intended
>> recipient(s) and may contain information that is confidential and 
>> protected from disclosure under the law. Any unauthorized review, 
>> use, disclosure, or distribution is prohibited. If you are not the 
>> intended recipient, please contact the sender by reply e-mail, and 
>> delete/destroy all copies of the original message and attachments.
>> Thank you.
>>
>> ---------------------------------------------------
>> Technet Mail List provided as a service by IPC using LISTSERV 15.0 To

>> unsubscribe, send a message to [log in to unmask] with following text 
>> in the BODY (NOT the subject field): SIGNOFF Technet To temporarily 
>> halt or (re-start) delivery of Technet send e-mail to
>> [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing

>> per day of all the posts: send e-mail to
>> [log in to unmask]: SET Technet Digest
>> Search the archives of previous posts at: 
>> http://listserv.ipc.org/archives
>> Please visit IPC web site
>> http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional 
>> information, or contact Keach Sasamori at [log in to unmask] or 
>> 847-615-7100 ext.2815
>> -----------------------------------------------------
> 
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 15.0 To 
> unsubscribe, send a message to [log in to unmask] with following text in

> the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt 
> or (re-start) delivery of Technet send e-mail to
> [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing 
> per day of all the posts: send e-mail to
> [log in to unmask]: SET Technet Digest
> Search the archives of previous posts at: 
> http://listserv.ipc.org/archives Please visit IPC web site
> http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional 
> information, or contact Keach Sasamori at [log in to unmask] or 
> 847-615-7100
> ext.2815
> -----------------------------------------------------
> 

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0 To
unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET
Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the
posts: send e-mail to [log in to unmask]: SET Technet Digest Search the
archives of previous posts at: http://listserv.ipc.org/archives Please
visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for
additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------