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September 2015

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Subject:
From:
"lduso - Diamond-MT.com" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, lduso - Diamond-MT.com
Date:
Thu, 3 Sep 2015 12:30:11 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (198 lines)
Tape is used most of the time and we use blue 3m masking tape (low
adhesion) on fragile components. If you are using a fine material like 1B31
or other acrylics, then we may seal with latex if it is a connector that
may "wick" easily. That's why I asked what coating you were using.

Lloyd Duso
Diamond-MT
Plant Manager
(814) 535-3505
www.Diamond-mt.com

On Thu, Sep 3, 2015 at 11:23 AM, Adrian Dimulescu <[log in to unmask]>
wrote:

> We're using Humiseal TS300 (Pink Bubble-Gum type), the lifting occurs when
> we try to pick the mask from around and on top of the components.  We tried
> masking with tape and lining the tape with the Humiseal TS300, though this
> works, it's time consuming.
>
> What material and technique do you use?
>
> Thanks
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls
> Sent: Thursday, September 03, 2015 11:01 AM
> To: [log in to unmask]
> Subject: Re: [TN] Selective Conformal Coat Systems
>
> I agree with Lloyd, if you are damaging components during demask, you are
> using the wrong materials and the wrong techniques.
>
> Trot them out here where we can see em and we'll help ya out.
>
>
> Doug Pauls
> Principal Materials and Process Engineer Rockwell Collins
>
> On Thu, Sep 3, 2015 at 9:55 AM, lduso - Diamond-MT.com <
> [log in to unmask]
> > wrote:
>
> > That sounds more like the problem, masking technique. We mask hundreds
> > a day and rarely damage anything. It's all in using the right
> > technique and as Steve said, the right material.
> >
> > What coating are you using?
> >
> > Lloyd Duso
> > Diamond-MT
> > Plant Manager
> > (814) 535-3505
> > www.Diamond-mt.com<http://www.Diamond-mt.com>
> >
> > On Thu, Sep 3, 2015 at 10:43 AM, Adrian Dimulescu
> > <[log in to unmask]
> > >
> > wrote:
> >
> > > That’s what we’re doing now, the issue is removing the mask as it
> > > will occasionally lift a pad or component.  We’re looking to do away
> > > with masking.
> > >
> > >
> > >
> > > Thanks
> > >
> > >
> > >
> > > ------------------------------
> > > *Adrian Dimulescu | Advanced Engineer | MtronPTI (NYSE MKT: LGL)*
> > > 2525 Shader Rd, Orlando, FL 32804
> > > Office: 407.298.2000
> > >
> > >
> > >
> > > *From:* lduso - Diamond-MT.com [mailto:[log in to unmask]]
> > > *Sent:* Thursday, September 03, 2015 10:41 AM
> > > *To:* TechNet E-Mail Forum; Adrian Dimulescu
> > > *Subject:* Re: [TN] Selective Conformal Coat Systems
> > >
> > >
> > >
> > > That low a volume, mask and spray by hand.
> > >
> > >
> > > Lloyd Duso
> > >
> > > Diamond-MT
> > > Plant Manager
> > > (814) 535-3505
> > >
> > > www.Diamond-mt.com<http://www.Diamond-mt.com>
> > >
> > >
> > >
> > > On Thu, Sep 3, 2015 at 10:39 AM, Adrian Dimulescu <
> > [log in to unmask]>
> > > wrote:
> > >
> > > Hello All,
> > >
> > > We're looking into purchasing a small (bench-top type) automated
> > selective
> > > conformal coat system.  This will be used for 100 or so boards a
> > > week, therefore speed is not an issue.  It is important that the
> > > system is selective as we only want to coat specific areas on the
> > > board.  I wanted
> > to
> > > get a feel for what other are using and/or recommend.
> > >
> > > Many Thanks
> > >
> > >
> > >
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> ________________________________
> Adrian Dimulescu | Advanced Engineer | MtronPTI (NYSE MKT: LGL)
> 2525 Shader Rd, Orlando, FL 32804
> Office: 407.298.2000
>
>
>
>
>
>
> CONFIDENTIALITY NOTICE:
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>
> ______________________________________________________________________
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