Hi Kenny
Nope, we just push it onto the connector and spray.  No additional
masking - this is why it is cost justifiable!  The boot fits snugly
enough that we don't get wicking.  The coating is about 20 to 25
centipoises viscosity.  We've sprayed thousands of that style connector
with these boots without incident.

Obviously you would need to verify with your own material and
process...  

 - Graham

>>> [log in to unmask] 02/06/07 10:19AM >>>
Hi Graham,

With the way conformal coating wicks I'd assume that you put a piece
of
tape around the base of "Das Boot", is that correct?

KennyB

-----Original Message-----
From: Steve Gregory [mailto:[log in to unmask]] 
Sent: Tuesday, February 06, 2007 5:15 AM
To: [log in to unmask] 
Subject: Re: [TN] Humiseal Masking Tape Residues/latex peelable

Mornin' Everyone!

I have Graham's "Das Boot" picture up! It's at:
http://stevezeva.homestead.com/files/Connector_Boot.JPG 

Hey Graham, what is the part number of that boot? I could use that
here...

-Steve Gregory- 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Graham Collins
Sent: Tuesday, February 06, 2007 6:27 AM
To: [log in to unmask] 
Subject: Re: [TN] Humiseal Masking Tape Residues/latex peelable

Hi Kenny!
We use a different style compared to Steve's (for the most part,
though
we do have a couple of applications like his).  I've sent Steve a pic
to
post on his site.  The pic is from my trial before we started using
them.  In the picture there is a side view of a connector with a boot
on
it, as well as a top view of a similar connector so you can see what
the
boot masks.  It covers the pins, hardware, and the mating area.  The
boot in the pic was sprayed and then after it cured I flexed the boot
and picked the cured coating off - there are some flakes remaining but
nothing that would cause issues in repeated use.

We also use a similar boot on header pins - considerably faster than
masking them.

We purchased the ESD safe versions of these - a conductive rubber is
used.  The boot in the pic is not ESD safe - which is why it is living
in my desk.  

Kinnarney can also make custom designs for you, but at a price - so
ponder the cost carefully vs the labour offset.



regards,

Graham Collins
Process Engineer,
L-3 Communications Electronic Systems Inc.
Halifax
(902) 873-2000 ext 6215

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