Subject: Wire mesh gauges?

From: [email-masked] (Jim Waggener)
Date: Tue, 02 Jul 1996 23:54:51 GMT

I have a question about wire mesh.  How is the size measured, like
100, 200 etc?.  Is the larger the number the wider the opening?
What size would a 100 mesh be in fractions?

Jim Waggener

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From: Clarence Noyer <[email-masked]>
Date: 3 Jul 1996 01:24:54 GMT

Wire mesh is measured by the number of openings per linear inch.

For instance, 98% of a container of cement (like concrete glue) should 
pass through a 200 mesh seive.  The larger the number the finer the 
openings.  Mining lamps used a fine mesh which would not let flame 
through.

"CC"

They gazed and gazed and still their wonder grew, 
That one small mind could hold everything he knew!

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From: [email-masked] (Alan Shinn)
Date: Tue, 02 Jul 1996 23:35:11 -0800

In article <[email-masked]>, [email-masked] (Jim

> What size would a 100 mesh be in fractions?

It's the number of holes per inch, so the larger the number, the smaller
the holes.

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From: [email-masked] (J. Kimberlin)
Date: 3 Jul 1996 17:15:51 -0700

In article <[email-masked]>,
>What size would a 100 mesh be in fractions?

If you are just getting wire screen then the opening may depend on the 
wire size as much as anything.  However, for standard Tyler Screens made 
by Combustion Engineering, the following ASTM specs are relevant:

6 mesh     0.132"
40 mesh     0.0165"
100 mesh    0.0059"
200 mesh    0.0029"
400 mesh    0.0015"

I am not sure if you can calculate the mesh sizes as a linear function 
but this gives you an idea.  The size of the wire changes in addition to 
the space between them.

BTW, I have a bunch of these for sale if anyone is interested.  E-mail me.

JerryK

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From: [email-masked] (Alan Horowitz)
Date: 4 Jul 1996 11:44:48 -0400

What size screening is required to stop "no-see-um" insects?

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From: Richard Hager <[email-masked]>
Date: Thu, 04 Jul 1996 16:45:35 -0400

-- 

Very, very, small screening !

Seriously, I think you'd want to use the plastic screen that's made for 
that purpose.  LL Bean sells something, and probably re-modeling supply 
wholesalers also (for screen porches in Florida, etc.).

        Richard Hager

+ Ah-ha! Design Group, Inc.           -
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From: Clarence Noyer <[email-masked]>
Date: 5 Jul 1996 15:51:21 GMT

A box of 16 gauge steel sheet with the protected one inside might be good 
enought to stop no-see-ums but there are probably deliterious side 
effects from employing such a solution.   khuk-khuk-khuk  "CC"