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bmkwan
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Join Date: Mar 2008
Posts: 3

Do I Need Anti-Static Brush for Conformal Coating on PCB?

03/19/2008 4:12 AM

Is anyone know whether I need anti-static brush if I want to apply conformal coating (Acrylic Protective Lacquer) onto a PCB manually? Any other consideration is required in order to protect the PCB from static charge damage.
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Pathfinder Tags: ESD Protection
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Shyam
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India - Member - Sensors Technology Popular Science - Cosmology - Dream, Think and Act United Kingdom - Member - New Member United States - Member - New Member Canada - Member - New Member

Join Date: Aug 2006
Location: AM-51, Deen Dayal Nagar, Gwalior, Madhya Pradesh, MP 474001, India
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#1

Re: Do I Need Anti-Static Brush for Conformal Coating on PCB?

03/19/2008 11:25 PM

Contact this person. He may be of great help.

John Penman is managing director of Microclean Technologies, Renfrewshire, Scotland. www.microcleantech.com

Also read his article

http://www.engineerlive.com/european-electronics-engineer/pcb-and-assembly/17001/electronics-industry-urged-to-clean-up-its-act-on-pcb-production-line.thtml

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Rega451
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Posts: 38
Good Answers: 1
#2

Re: Do I Need Anti-Static Brush for Conformal Coating on PCB?

03/20/2008 1:37 AM

Yes, without a doubt. There are several manufacturers of anti-static brushes suitable for your purpose. Here is one: http://www.gordonbrush.com/index.htm . To find more, just Google "anti-static brushes".

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Rick@cae
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#3

Re: Do I Need Anti-Static Brush for Conformal Coating on PCB?

03/20/2008 9:56 AM

Also,

Make sure that the pcb is extra clean (no residual fluxes, fingerprints, etc) or you might end up with coating de-lamination. Talk with your flux/solder supplier for the proper cleaning agent. IPA (Isopropyl Alcohol) works on some of the fluxes but not all.

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bmkwan
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#4
In reply to #3

Re: Do I Need Anti-Static Brush for Conformal Coating on PCB?

03/20/2008 11:53 AM

Rick,

Thank you for the advice. Do you know whether we can use normal brush for the manual coating. As I worried about ESD damaging the PCB during manual coating.

Regards,

BM
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Rick@cae
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#5
In reply to #4

Re: Do I Need Anti-Static Brush for Conformal Coating on PCB?

03/20/2008 12:11 PM

You do need the anti static brushes. There are plenty of suppliers and these are very inexpensive. Do not risk damaging your boards by using 'normal' (espcially plastic) brushes.

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bmkwan
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#6
In reply to #5

Re: Do I Need Anti-Static Brush for Conformal Coating on PCB?

03/20/2008 12:20 PM

Rick,

Again, appreciate your prompt reply.

Regards,

BM
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Rick@cae
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#7
In reply to #6

Re: Do I Need Anti-Static Brush for Conformal Coating on PCB?

03/20/2008 12:28 PM

My pleasure.

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Users who posted comments:

bmkwan (2); Rega451 (1); Rick@cae (3); Shyam (1)

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