Technet, We use ESD masking tape and Kapton tape. There are many suppliers of these tapes (3M 800-828-9329, Marshall 800-432-2223,Techni-Tool 800-505-8665,Static Technologies 617-357-6444,Wescorp 800-537-7828,...) . For selection of tapes used a charge analyzer with voltmeter,field meter, and decay meter (traceable to NIST) meets EOS/ESD Std No.3, Mil-Std-45662A. You will need this analyzer to chose the "best fit" tape for your specific materials, processes and environment. The environment is very important you can provide an environment to inhibit or prevent static (temperature/humidity, presence of static generators, ESD workstation, insulators (material with ability to retain a charge). For detailed information ask for ESD Associations' new catalog which describes 11 stds,4 drafts,& 5 advisory docs.....315-339-6937. Brian Bill, Someone has already suggested ionizing air streams for reducing electrostatic charges during mask and demask. I assume that the operator, spray booth, workpiece support and spray gun nozzle are all at ground potential. Of course, the circuit itself must also be at this potential. For ultimate protection, I'd also attach a shorting bar across all connector fingers and tie that to your ground buss. Remember, all those tiny blobs of conformal coating are non conductive. I also assume that your earth ground is totally isolated from all electrical feeds and prepared in such a way as to be effective in all climatic conditions.(such as very dry) There is a Mil Spec on earth grounding stations. This information was all gathered in another life, so I don't remember the specific specification. The opinions stated herein are not those of my employer. Lyn R. Lynch 602.276.7361 *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * *************************************************************************** Received: from dns.slr.com by ca.slr.com (SMTPLINK V2.11.01) ; Thu, 16 Jan 97 10:51:28 PST Return-Path: <[log in to unmask]> Received: from simon.ipc.org ([168.113.24.64]) by dns.slr.com (5.x/SMI-SVR4) id AA29978; Thu, 16 Jan 1997 09:48:19 -0800 Received: from ipc.org by simon.ipc.org via SMTP (940816.SGI.8.6.9/940406.SGI) id LAA12471; Thu, 16 Jan 1997 11:35:20 -0800 Resent-Date: Thu, 16 Jan 1997 11:35:20 -0800 Received: by ipc.org (Smail3.1.28.1 #2) id m0vkv1j-0000VnC; Thu, 16 Jan 97 10:50 CST Resent-Sender: [log in to unmask] Old-Return-Path: <[log in to unmask]> Date: Thu, 16 Jan 97 08:24:14 From: "Lynch, Lyn" <[log in to unmask]> Message-Id: <[log in to unmask]> To: [log in to unmask] Subject: RE: Masking Tape and ESD Damage Resent-Message-Id: <"PXmwN.0.PML.Rnbto"@ipc> Resent-From: [log in to unmask] X-Mailing-List: <[log in to unmask]> archive/latest/9301 X-Loop: [log in to unmask] Precedence: list Resent-Sender: [log in to unmask] *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************