pdp1@EARTHLINK.NET on wed 7 may 03
...if you have Water as a base for the Glaze, I do not think
the Glaze could be combustible.
Spray Booths as anticipate the applicationns of Lacquer,
Enamels or other flammable-sovent based paints as were
traditionally used in compressed air driven 'guns', could
enjoy sufficient ambient concentrations in the air of their
volitile solvents to warrant some concern about 'sparks'
igniteing a flash, which, in itself, would not ( in a small
'booth') amount to much anyway, other than maybe to startle
the naive pilgrim, or at worst, ignite their hair.
( I actually ignited my hair the other day, for the first
time ever...having passed an Oxy-acetylene Torch through it
in a moment of casual aplomb...heard something 'hissing' up
there, and smelling the tell tale clues, put my hands over
it and extinguished the little 'fire'...I have not laughed
so hard in weeks!
But anyway...
Induction Motors are not known to be 'spark' makers anyway,
so far as I recall, and the days of anyone likely buying a
'new' fan of some kind, or of any kind as would have a
'Brush' Motor are as gone as the 5 Cent cup o' Coffee at a
good Restaurant.
Unless you are intending a 'drive-in' or even a serious
'walk-in' size Spray Booth, I would not be concerned about
the combustion prospect of anything you intend to spray
anyway...as, if useing a gun with enough volume to create a
'danger', you would not be able to even see through the fog
you are making to be doing any spraying at all.
For spraying Glazes onto Pots, or useing a small gun or
Air-Brush to do so, and useing Glazes as are made with
Water, the only concern I can anticipate is to simply have
some method as allows you to work without aspirateing the
air-suspended Glaze, or, as well, to collect it so it's
subsequent dusts are not an annoyance.
Probably, a fine 'booth' could be made of some simple
viscolene 'curtain' surrounding a table which enjoys a
static or other 'charge' causing whatever particles as are
immediately in the air to assume an affinity for the Pot
being sprayed.
Such devices are widely available, since other vocations
and avocations use them, are not too expensive.
I am sure that one would be easy to make, too, if one
wanted.
Nothing gets in the air, nothing gets breathed, nothing gets
wasted or settles into dusts as may later be a worrry.
I'd look into that if it were me...
Phil
el vee
----- Original Message -----
From:
To:
Sent: Wednesday, May 07, 2003 7:46 AM
Subject: Re: ventless spraybooth
> > What are you making your glazes out of that would be
combustible??
> >
> > Jts
>
> hmmmm...i know i read it somewhere. i had done some
research before blindly
> plunging into making a spray booth...i thought it was
specific to glaze
> materials and spray booths... maybe it was one of the clay
catalogues?, an
> article in one of the mags? one of my books? but now i
have to figure out
> where, because that was the understanding mine was built
with. we were careful
> to buy a fan with a housed motor for that reason.
>
> after reading the clayart digest this morning, no one else
has corroborated
> that info. so now i'm thinking maybe what i read was a
general warning about
> chemicals that have vapors that ignite, but that no glaze
chemicals fit that
> description?
>
> > -----Original Message-----
> > darlene,
> >
> > you wrote:
> > >The idea is to basically build a box on top of a
powerful shop vac with
> > >the shop vac connected to the back of the booth.
> >
> > i could be mistaken, but i don't believe a shop vac
motor is a sealed unit.
> > therefore you CANNOT draw combustible vapors/materials
like glazes through
> > the housing. it could catch fire! ....
>
> --
> Lauren Bellero
> Mudslingers Pottery
> Red Bank, NJ 07701
> http://mudslingers.home.att.net
> 732.747.4853
>
>
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