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another spray booth question

updated thu 1 feb 07

 

Bob Johnson on tue 30 jan 07


Can anyone give me advice on the minimum size of an exhaust fan (in
cu ft / min, I suppose) for a glaze spray booth?

Here's my problem: My studio is small, and I don't have room for a
spray booth inside. So, I'm thinking of building a take-apart one
that I can just set up on saw horses outside. My plan was to get some
sort of flexible duct that I could attach and send the spray fumes 10
or 15 feet away.

Suggestions?

Bob - in Oregon

Fred Parker on wed 31 jan 07


Hi Bob:

In my opinion exhausting a spray booth 15 feet away does very little, if
anything, for you. Breezes will still bring the overspray back to you if
they shift direction, which is pretty much a given. A P-100 respirator is
therefore still necessary. If you're gonna be outside with a respirator,
why use a booth? Just spray in the open air and save all the trouble of
building/setting up/dismantling/storing a booth...

Fred Parker


On Tue, 30 Jan 2007 22:04:41 -0800, Bob Johnson
wrote:

>Can anyone give me advice on the minimum size of an exhaust fan (in
>cu ft / min, I suppose) for a glaze spray booth?
>
>Here's my problem: My studio is small, and I don't have room for a
>spray booth inside. So, I'm thinking of building a take-apart one
>that I can just set up on saw horses outside. My plan was to get some
>sort of flexible duct that I could attach and send the spray fumes 10
>or 15 feet away.
>
>Suggestions?
>
>Bob - in Oregon
>
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pdp1@EARTHLINK.NET on wed 31 jan 07


Hi Bob,


If you are going to spray outside, just wear a
breathing-mask and call it good enough...

Since, the purpose of a Spray Booth is to get
'inside' or indoor fumes or mists in a small
dedicated area, to be 'outside', and, if you are
apraying 'outside' then you and them are already
'outside'...

...if you like, keep your back at about 45 degrees
to any prevailing breezes.

You can use Insense or a Cigarette to determine
subtle Air flows by watching the smoke...or wet
your index finget tip and hold it up, turning it
till you determine by feel of coolness, which
direction the Air is moveing from...even a small
breeze will work better than setting up a Fan
would, especially if you are standing at a slight
angle to them.


Best wishes..!

Phil
el v


----- Original Message -----
From: "Bob Johnson"

> Can anyone give me advice on the minimum size of
an exhaust fan (in
> cu ft / min, I suppose) for a glaze spray booth?
>
> Here's my problem: My studio is small, and I
don't have room for a
> spray booth inside. So, I'm thinking of building
a take-apart one
> that I can just set up on saw horses outside. My
plan was to get some
> sort of flexible duct that I could attach and
send the spray fumes 10
> or 15 feet away.
>
> Suggestions?
>
> Bob - in Oregon

dwichman@frontiernet.net on wed 31 jan 07


"Can anyone give me advice on the minimum size of an exhaust fan (in
cu ft / min, I suppose) for a glaze spray booth?

Here's my problem: My studio is small, and I don't have room for a
spray booth inside. So, I'm thinking of building a take-apart one
that I can just set up on saw horses outside. My plan was to get some
sort of flexible duct that I could attach and send the spray fumes 10
or 15 feet away."
>>>>>>>>

Hi Bob,

Vince Pitelka wrote up some very easy to follow directions to build a
collapsible (Tabletop) spray booth in the Jan-Feb 2003 issue of Clay
Times. I believe in the article he recommends a minimum of 600 CFM
for the exhaust fan.

We built this booth recently and have used it three times - it's
wonderful. And we purchased all the necessary materials for under
$150. We also use about 12 feet of 8" flexible duct to carry the
exhaust.

Debi Wichman
Cookeville, TN
http://www.elementterra.com

Mayssan Shora Farra on wed 31 jan 07


On Wed, 31 Jan 2007 20:28:33 +0000, dwichman@frontiernet.net
wrote:

>"Can anyone give me advice on the minimum size of an exhaust fan (in
>cu ft / min, I suppose) for a glaze spray booth?
>
>Here's my problem: My studio is small, and I don't have room for a
>spray booth inside. So, I'm thinking of building a take-apart one
>that I can just set up on saw horses outside. My plan was to get some
>sort of flexible duct that I could attach and send the spray fumes 10
>or 15 feet away."
>>>>>>>>>
>
>Hi Bob,
>
>Vince Pitelka wrote up some very easy to follow directions to build a
>collapsible (Tabletop) spray booth in the Jan-Feb 2003 issue of Clay
>Times. I believe in the article he recommends a minimum of 600 CFM
>for the exhaust fan.


Hello Bob, Vince, Debi:

I have a follow up question. If the booth is going to be outside, is there
still a need for exhaust? I always take my silica outside for mixing into
glazes and figure I am as safe as possible. Am I fooling myself?

Thanks.
Mayssan

http://www.clayvillepottery.com