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| Date: | Wed, 31 Mar 2010 10:25:16 -0400 |
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It's probably worth mentioning that pink poly caps
are not static shielding. We use only black conductive
caps, essentially for the same reason we use static
shielding bags instead of pink poly bags. Pink poly
is not adequate protection for ESD-sensitive items.
-Joe
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bob Landman
Sent: Wednesday, March 31, 2010 10:08 AM
To: [log in to unmask]
Subject: Re: [TN] ESD Cap Plugs
Tte polystyrene on the displays is very sensitive to chemicals. We were using an aqueous wash with a saponifier and found that crazed the plastic, according to HP. They were right.
Bob
Sent from my iPhone
On Mar 30, 2010, at 2:05 PM, Bruce Tostevin <[log in to unmask]>
wrote:
> Gregg,
>
> About 15 years ago at another job we returned a shipment of LCD
> display
> assemblies because their individual pink poly bags caused crazing on
> the
> plastic faces. The LCD plastic and the poly bag's ingredients were
> incompatible, so the vendor changed over to generic metallized ESD
> bags
> afterward.
>
> Bruce Tostevin
> Benchmark Electronics
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Gregg Owens
> Sent: Tuesday, March 30, 2010 10:04 AM
> To: [log in to unmask]
> Subject: [TN] ESD Cap Plugs
>
> Dear TechNet:
>
> There has been discussion on the use of "pink poly" for ESD prevention
> on flight hardware. An expressed concern has been the chemicals
> added to
> the surface of pink poly can potentially contaminate our products with
> the residue pink poly leaves behind. I have posted a picture of one of
> our boxes which have both the pink poly and black ESD style of cap
> plugs. What are any of your experiences with contamination associated
> with using pink poly? As always, thanks,
>
> Gregg Owens
> Technical Writer - Avionics
> Space Exploration Technologies Corporation
> 1 Rocket Road | Hawthorne | CA | 90250
> 310-363-6533 | [log in to unmask]
>
>
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