Depends what you want to achieve!
For me, coatings fall into two families:

one being a thick(ish) coating which is resistant to the chemicals it is designed for, for example flouroslicone in places where aviation fuel may be around, or humiseal SCC3 for resistance against salt spray. This group would even include the varnishes and polyurethane hard coats. It’s a great system as it just does what it says on the tin! But the negatives are costly masking etc as it makes a mess of connections and optics etc and you can't get it off!

Family two is the surface modifier type, in a nutshell is makes a surface repellent to moisture vapours so they can't stick and penetrate. Great news for PCB's is that you can dip or spray without masking. We use type two here for our industrial applications, type 1 is traditionally military/aerospace

Google research on ACCL-53T shows it to be a connector protector lubricant, (which to me is family 2), I've not heard of it but actually am interested as we do have high power contacts. It's not really a CC as others have pointed out

What is your design intention for the coating? Decide on that first, then it's easier to decide what is best

Regards
Paul




Paul Taylor
Alstom Grid | R&D | Post Design Service Team Leader
Phone: +44 (0) 1785 223251 (x2014) | Mobile: +44 (0) 7827 312568 | E-mail: [log in to unmask]
Office address: St Leonards Avenue, Stafford, ST17 4LX
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of lduso - Diamond-MT.com
Sent: 20 June 2014 13:49
To: [log in to unmask]
Subject: Re: [TN] Conformal Coating

Victor

I do not think that material is too common. We do nothing but CC and I have never had a customer ask for this material. Who is the manufacturer?

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


On Fri, Jun 20, 2014 at 8:44 AM, Victor Hernandez < [log in to unmask]> wrote:

> Fellow TechNetters:
>
>    I have not received many responses to my conformal coating inquiry,
> ACCL-53T.   Perhaps someone can share parameters associated with the
> process such as application equipment, spray nozzle, thickness, Drying,
> coverage, etc.   Is there an associated IPC Standard that I can review?
>   I would very much appreciate any information you can share.
>
> Victor,
>
> From: Hernandez, Victor G
> Sent: Wednesday, June 18, 2014 8:03 AM
> To: Stadem, Richard D.; TechNet E-Mail Forum
> Cc: Hernandez, Victor G
> Subject: RE: Conformal Coating, ACCL-53T
>
> Good response for SAFETY, but searching for something more
> constructive with regards to the above stated product..
>
> Victor,
>
> -----Original Message-----
> From: Stadem, Richard D. [mailto:[log in to unmask]]
> Sent: Tuesday, June 17, 2014 3:47 PM
> To: TechNet E-Mail Forum; Hernandez, Victor G
> Subject: RE: Conformal Coating
>
> Yes, acceleration to 53 mph, tops, has always been a safe way to drive.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
> Sent: Tuesday, June 17, 2014 3:01 PM
> To: [log in to unmask]<mailto:[log in to unmask]>
> Subject: [TN] Conformal Coating
>
> Fellow TechNetters:
>
> Anyone out there has experience with ACCL-53T?
>
> Victor,
>
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