So you know where the problem stems from with root cause and corrective
action.
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Joyce Koo
Sent: Friday, January 23, 2009 10:51 AM
To: [log in to unmask]
Subject: Re: [TN] ESD Flooring - bare concrete
Patent applicantion 10000000, automatic ESD floor monitoring method.
Plant flower or other equivalent vegitation with proper amont of soil
direct on the said concrete floor. Water every day with sufficient h20
per sq m. Spray is preferable method to apply a uniform so called right
amont. The dry of veggitation indicated poor ESD dissipation of said
concrete floor.
--------------------------
Sent using BlackBerry
----- Original Message -----
From: TechNet <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Sent: Fri Jan 23 12:40:34 2009
Subject: Re: [TN] ESD Flooring - bare concrete
The best suggestion I have is to apply an ESD floor finish on top of the
concrete.
That way it will be consistent, no matter what the season of the year
is,
and provides the least expensive static dissipative flooring.
We used multiple drag chains on carts and ESD shoes to complete the
control
system and that way the entire factory floor becomes ESD compliant
rather
than just at the workstations.
The floor needs to be maintained, especially in high traffic areas so
the
janitors need to use the correct "make-up" wet mopping ESD product.
I don't believe in buying ESD floor tiles, nor ESD chairs since they
don't
add any value when you use the combination of ESD footwear and a
properly
applied ESD floor finish.
Phil
At 05:48 AM 1/23/2009 -0500, Steven Creswick wrote:
>Techies,
>
>
>
>My first Friday, pseudo-technical question - I have an acquaintance
that is
>repairing pretty crude PWB assemblies used in the trucking industry and
>needs to re-locate to gain more room. He certainly does not require
>clean-room conditions.
>
>
>
>My thought was that a bare concrete floor - free of oils and greases,
epoxy
>coatings, etc. - would work out ok for flooring. If he had carts, he
could
>attach small brass chains, etc.
>
>
>
>Was also thinking that the floor would give up moisture in the Winter
and
>absorb it during the Summer and thereby help buffer humidity swings.
>
>
>
>He still would require ESD work-stations.
>
>
>
>What say the more ESD gurus?
>
>
>Steve
>
>
>
>
>
>
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