Wee Mei,
That would depend on the end use environment and the quality of the screws
you use. We use stainless steel for our products, or anodized /chem-coated
and we do not normally coat the screws, so our workmanship standards don't
cover that aspect.
Doug Pauls
"Wee Mei"
<[log in to unmask]
sg> To
"TechNet E-Mail Forum"
03/21/2005 01:50 <[log in to unmask]>,
AM <[log in to unmask]>
cc
Subject
Re: [TN] Conformal Coating
Hello,
Regarding bubbles, it is OK if they are found on screws of connectors?
Regards,
Wee Mei
----- Original Message -----
From: "Douglas O. Pauls" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, March 18, 2005 8:50 PM
Subject: Re: [TN] Conformal Coating
> Ted,
> You will find mil specs and the IPC specs in general agreement that most
> conformal coatings should be applied in the range of 1-5 mils of
> thickness,
> or 0.5 mils if you are using Parylene. If you start to go thicker than
> this, you start to get problems arising from the cure dynamics (entrapped
> solvents) which can result in poor adhesion, bubbling, that sort of
thing.
>
> Doug Pauls
>
>
>
>
> Ted Kong
> <zombietheking@YA
> HOO.COM> To
> Sent by: TechNet [log in to unmask]
> <[log in to unmask]> cc
>
> Subject
> 03/17/2005 07:17 [TN] Conformal Coating
> PM
>
>
> Please respond to
> TechNet E-Mail
> Forum
> <[log in to unmask]>
> ; Please respond
> to
> Ted Kong
> <zombietheking@YA
> HOO.COM>
>
>
>
>
>
>
> Hi all,
>
> We need to apply conformal coating to one of our
> products. Is there a standard in the industry that
> specify the material and the thickness? I guess Mil
> Spec might have a standard out there, but don't know
> what spec number. I would appreicate if someone
> provide some guidelines or a spec number. Thanks all
> in advance.
>
> Ted
>
>
>
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