In a prior life, we mounted hardware onto a pneumatic turntable, and hand
sprayed conformal coating onto the boards in a spray booth. This was in a
low volume high reliability application. We used a pneumatic turntable (with
a regulator to control the speed of rotation) to prevent any sparks from
occurring during the spraying process from the atomized conformal coating.

To mask off areas, we used tape that did minimized any static charge. We
also used an area ionizer to prevent a static charge from being generated.

Hope this helps.

Good Luck.

Lee Whiteman
Senior Manufacturing Engineer
E-Mail: [log in to unmask] <mailto:[log in to unmask]>
Ph: (610) 362-1200 x208
Fax: (610) 362-1290



> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of Olivia Mc Dermott
> Sent: Thursday, May 02, 2002 11:40 AM
> To: [log in to unmask]
> Subject: [TN] Conformal Coating
>
>
> Hi,
> When applying conformal coating, on what type of surface is the
> PCB placed?
> How is this surface maintained, or is it a disposable surface changed for
> every application?
> Are templates a good idea for masking off boards? If so how are they
> maintained or cleaned.
> Thanks in advance for any help.
>
> _________________________________________________________________
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