This seems like a good candidate for the classic SE measurement method
of using a shield room pass-thru panel as the sample, with antennas on
both sides. At least it wouldn't require much material to try.
Brent
On 11/19/2021 10:50 AM, Patrick wrote:
Ken-
agree with you on all points.
Charles-
is there any way to get a paint sample and run a test? I can imagine
a stepped approach of ...apply one coat, let it dry, measure SE, apply
another coat, repeat...
seam treatment is a head-scratcher. there are tried and true methods
for existing shield technology, but this would be something new. need
a creative method to experiment and iterate into a solution. Hmm
Patrick
On Thu, Nov 18, 2021, 09:29 Ken Javor <ken.ja...@emccompliance.com
<mailto:ken.ja...@emccompliance.com>> wrote:
Obvious observations.
Shielding effectiveness depends on the paint conductivity after
applied and dried. The solid content by volume needs to be that
which achieves the desired cured/dried conductivity.
Next, the surface conductivity will facilitate some degree of
shielding effectiveness. But you didn’t state the goal. If one
coat doesn’t deliver the required conductivity, then maybe
multiple coats might, but whether that is practical totally
depends on the ratio of single coat SE to desired SE.
And finally, chamber SE is high-side bounded by the SE calculable
from the paint conductivity. All seams, apertures, and
penetrations must be handled in a manner to protect the SE
inherent in the paint conductivity.
Ken Javor
Phone: (256) 650-5261
------------------------------------------------------------------------
*From: *"Grasso, Charles" <charles.gra...@dish.com
<http://charles.gra...@dish.com>>
*Reply-To: *"Grasso, Charles" <charles.gra...@dish.com
<http://charles.gra...@dish.com>>
*Date: *Thu, 18 Nov 2021 09:05:14 -0700
*To: *<EMC-PSTC@LISTSERV.IEEE.ORG <http://EMC-PSTC@LISTSERV.IEEE.ORG>>
*Subject: *[PSES] Pure silicate paint as shielding for work areas
Hello all,
We are considering the use of pure silicate paint to shield a
room, Does anyone have experience with using a paint like this in
this sort of application?. Obviously all the normal
rules apply for ensuring a contiguous bond - I have only a limited
idea on the difficulties that
requirement will entail! FYI, the "spec" does not specify % by
volume of the solid content. I am guessing that 50-70% by volume
should be sufficient - does that make sense?
Thank you in advance!
--
Charles Grasso
Dish Technologies
(c) 303-204-2974
(h) 303-317-5530
(e ) charles.gra...@dish.com <http://charles.gra...@dish.com>
(e2) chasgra...@gmail.com <http://chasgra...@gmail.com>
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