Graham,

You may want to consider sending your parylene coating out if your
quantities don't justify the vapor deposition equipment.  Both SCS
(1-800-356-8260) and Paratech (1-800-999-4942) sell the equipment or
will perform the coating service for you.

Also, keep in mind that its solvent resistance, which is of course good
for a coating, also makes it difficult to remove (not that we'd ever
have to remove coating from a board to rework it!).  You may want to
look into the removal process a bit.  I believe that there are machines
available for this and that they use something similar to a mechanical
grinding process to remove the coating).

Good luck.

-Steven

Steven K. Lustig
Process Engineer
EMS Technologies, Inc.
Norcross, GA
(770) 263-9200 x4714
[log in to unmask]

>----------
>From:  Collins, Graham[SMTP:[log in to unmask]]
>Sent:  Monday, April 26, 1999 3:07 PM
>To:    [log in to unmask]
>Subject:       Parylene coating
>
>Good Monday TechNet.
>I've been tasked to get us into the world of Parylene conformal coating - we
>will continue to coat with urethane and acrylic coatings, but also parylene -
>we must be versatile I guess.
>
>So my question to the TechNet, as a parylene "newbie" is this - are there any
>pitfalls I should be aware of as I go forth and buy a coater?  Any
>recommendations, condemnations, or general comments would be appreciated.
>
>thanks,
>
>Graham Collins
>Process Engineer,
>Litton Systems Canada, Atlantic Facility
>(902) 873-2000 ext 6215
>

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################