Well thank a lot! I now have spittle all over my monitor....
Graham Naisbitt
On 11 May 2009, at 16:43, Whittaker, Dewey (EHCOE) wrote:
> So, since we are speaking of a vacuum deposition process, a Blonde was
> asked if she were in a vacuum, would she be able to hear. Is it on or
> off was her reply. May I please have a copy of that data?
> Dewey
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Karen Tellefsen
> Sent: Monday, May 11, 2009 8:31 AM
> To: [log in to unmask]
> Subject: Re: [TN] Parylene Adhesion Tape Test
>
> Very silly response to unclear English.
>
> Paralene, when applied over some no-clean wave-soldering and solder
> paste
> flux residiues, does not provide good protection.
>
> I miss Al Schneider.
>
> Karen Tellefsen - Electrical Testing
> [log in to unmask]
> 908-791-3069
>
>
>
>
> So are you telling us not to use Al Schneider or no-clean soldering
> materials?
> Dewey
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Karen Tellefsen
> Sent: Monday, May 11, 2009 6:34 AM
> To: [log in to unmask]
> Subject: Re: [TN] Parylene Adhesion Tape Test
>
> At Nepcon west 1999, Al Schneider presented some work I did on
> Paralene
> and no-clean soldering materials with disappointing results. If
> anyone
> wants a copy, email me.
>
> Karen Tellefsen - Electrical Testing
> [log in to unmask]
> 908-791-3069
>
>
>
>
>
> Mary Lou Sachenik
>
>
>
>
> Subject
> 05/09/2009 07:59 [TN] Parylene Adhesion Tape Test
>
> AM
>
>
>
>
>
> Please respond to
>
> TechNet E-Mail
>
> Forum
>
> <[log in to unmask]>
>
>
> OM>
>
>
>
>
>
>
>
>
>
> We recently had some issues with lack of adhesion of Parylene coating
>
> What types of notes are being used on drawings to define parylene
> conformal coating adhesion test on pwa's?
> Is the ASTM3359-08 (for assessing the adhesion of coating films to
> metallic substrates) the best spec to call out for this testing .
> I presently don't have pwb coupons to perform destructive cross hatch
> test.
>
> What type of tape is being used testing parylene adhesion on the
> PWA's?
> Some specs call out 3M-250 tape, the ASTM D 3359 calls out the
> Permacel
> 99.
> Actually I prefer the Wescorp 79210 clear Anti-static Tape, does this
> seem
> acceptable?
>
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