Jennifer Boyer on tue 24 jun 97
Hi All,
I read a comment on ITC in my Bailey Ceramic Supply catalogue that puzzled
me. It said that they discourage people from spraying ITC on Fiber because
it creates fiber dust.....any comments? I'm planning on spraying my funky
fiber door with it.
Jennifer in VT
~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
Jennifer Boyer
Thistle Hill Pottery
Montpelier, Vt. 05602
jboyer@plainfield.bypass.com
David Woodin Set Clayart Digest on wed 25 jun 97
I use a mask while spraying ITC on fiber or brick. I have also sprayed my
Bailey kiln with it and now have no problems with fiber particles falling on
glazed ware.
Howard on thu 26 jun 97
ITC coatings actually reduce fiber dust. It creates an egg-shell like
finish over the ceramic fiber which not only seal the fibers in, but also
enhances the life of the fiber while also increasing the efficiency of the
kiln. One note of caution when spraying your door, however, do not spray
ITC over the area where the fiber presses against the brick kiln. You want
the fiber to remain soft and gasket-like in this area so that you get a
good seal when the door is shut (ITC is a rigid surface). Howard Axner
Tadeusz Westawic on thu 26 jun 97
Jennifer Boyer wrote:
>
> ----------------------------Original message----------------------------
> Hi All,
> I read a comment on ITC in my Bailey Ceramic Supply catalogue that puzzled
> me. It said that they discourage people from spraying ITC on Fiber because
> it creates fiber dust.....any comments? I'm planning on spraying my funky
> fiber door with it.
> Jennifer in VT
>
> ~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
> Jennifer Boyer
> Thistle Hill Pottery
> Montpelier, Vt. 05602
> jboyer@plainfield.bypass.com
Hi Jennifer,
If you talk to Bailey direct, I think you'll find that they object only
to the spraying. I think they will suggest to you that you try to apply
the coating with brush or roller. I think they will even have some
suggestions as to how to handle the coating where fiber meets fiber,
such as on the door jamb. I also think they will ask you to let them
know how you made-out.
Tadzu
Clennell on thu 26 jun 97
>----------------------------Original message----------------------------
>Hi All,
>I read a comment on ITC in my Bailey Ceramic Supply catalogue that puzzled
>me. It said that they discourage people from spraying ITC on Fiber because
>it creates fiber dust.....any comments? I'm planning on spraying my funky
>fiber door with it.
>Jennifer in VT
>
>
>~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
>Jennifer Boyer
>Thistle Hill Pottery
>Montpelier, Vt. 05602
>jboyer@plainfield.bypass.com
Dear Jennifer: You would only discourage someone from not spraying their
fiber kiln if you didn't really like them. We have a Bailey fiber kiln and
when new even when we opened the peep holes to check the cones we would be
be coughing from the fiber (free silica) blowing out the peeps. We sprayed
the fiber with ITC l00 to make it rigid . It is now as hard as a rock! It
no longer is killing us, it doesn't fall off in your pots and stick to your
hair, our firings are faster and better. I assume Jim Bailey stopped making
fiber kilns because of health concerns. I was concerned too, and thats why
we sprayed and are glad we did. . I tried the rigidizer that Bailey sells
and it is like a thin egg shell coating. We found it not at all
satisfactory. Spend the money and go with ITC l00.
Cheers,
Tony
Sheila and Tony Clennell
Gleason Brook Pottery
Box l0, RR#2,
Wiarton, Ontario
NOH 2TO
Canada
Phone # 1 (519) 534-2935
Fax # 1 (519) 534-0602
E-mail clennell@bmts.com
Tommy Humphries on fri 26 apr 02
After spraying on the ITC the fiber will not shrink...at least not as fas=
t.
And the coating is a part of the fiber not just a layer on the surface.
I sprayed a modular kiln about 3 years ago, it wasn't new, but it had nev=
er
been fired over 1000=BA C. so the fiber was still soft and fluffy. I jus=
t
noticed that the fiber was starting to develop a gap where the walls meet
the ceiling...about .25". Need to soak some thin fiber bats in ITC and st=
uff
them in the gap, shouldn't be a problem again.
Tommy
----- Original Message -----
From: "don hunt"
> I wonder if it wouldn't be better to fire the kiln first and get the
> shrinkage out of the fiber before spraying it. It looks to me that the
> fiber shrinks away from the itc. Aside from cost several thin layers
> adding up to a tough shell looks like it will be most resistant to
> accident bumps, maybe the most damage to the fiber.
>
> Don Hunt
don hunt on fri 26 apr 02
I wonder if it wouldn't be better to fire the kiln first and get the
shrinkage out of the fiber before spraying it. It looks to me that the
fiber shrinks away from the itc. Aside from cost several thin layers
adding up to a tough shell looks like it will be most resistant to
accident bumps, maybe the most damage to the fiber.
Don Hunt
Tommy Humphries on sat 27 apr 02
you obviously have never fired a fiber kiln coated with ITC...shrinkage is
no problem.
Tommy
----- Original Message -----
From: "don hunt"
> If the fiber is fired to its rating it absolutely will shrink.
>
don hunt on sat 27 apr 02
If the fiber is fired to its rating it absolutely will shrink.
Tommy Humphries wrote:
> After spraying on the ITC the fiber will not shrink...at least not as f=
ast.
> And the coating is a part of the fiber not just a layer on the surface.
>
> I sprayed a modular kiln about 3 years ago, it wasn't new, but it had n=
ever
> been fired over 1000=BA C. so the fiber was still soft and fluffy. I j=
ust
> noticed that the fiber was starting to develop a gap where the walls me=
et
> the ceiling...about .25". Need to soak some thin fiber bats in ITC and =
stuff
> them in the gap, shouldn't be a problem again.
>
> Tommy
>
> ----- Original Message -----
> From: "don hunt"
>
> > I wonder if it wouldn't be better to fire the kiln first and get the
> > shrinkage out of the fiber before spraying it. It looks to me that t=
he
> > fiber shrinks away from the itc. Aside from cost several thin layers
> > adding up to a tough shell looks like it will be most resistant to
> > accident bumps, maybe the most damage to the fiber.
> >
> > Don Hunt
>
> _______________________________________________________________________=
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Julie Milazzo on sun 28 apr 02
Wow! Thank you for all the great responses! The kiln
had actually been fired once, before it was shipped
out, so I feel pretty comfortable using itc on it
before I fire it again. It sounds like a good product,
and like some of the complaints about it may have come
from not wetting the fiber enough first. I probably
would have watered it too sparingly as well, if I
hadn't gotten such thorough answers from you all.
Thanks, and I'll keep you posted! Jules
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don hunt on sun 28 apr 02
I do have a 36 cf fiber downdraft I built last year. It was coated with 3
or 4
coats of itc before it was ever fired. The manufacturers info SAYS it
shrinks.
And indeed it does. The cross installed modules in the roof (10 inches
thick)
shrink much less than the 3 layers making up the walls, but the hot face (40
by 48
inches) have shrunk half an inch all the way around. Think about it, the
manufacturer doesn't fire the material to cone 10, it obviously is going to
have
some shrinkage, it is a ceramic material.
I wouldn't be so bold as to say what someone I never met hasn't done, but
perhaps
you never built a fiber kiln.
Tommy Humphries wrote:
> you obviously have never fired a fiber kiln coated with ITC...shrinkage is
> no problem.
>
> Tommy
>
> ----- Original Message -----
> From: "don hunt"
>
> > If the fiber is fired to its rating it absolutely will shrink.
> >
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Tommy Humphries on sun 28 apr 02
Don, sorry I riled you up...I didn't mean any offense!
I have only my experience to rely on here, so if it is different from
yours...so be it. :^)
We took delivery of 3 fiber kilns each approximately 200 cf. all modular=
,
with 6" ceilings and 4" walls. Sprayed 2 with ITC before first
firing...they stayed tight for 2 years of 6 firings a week to ^6. The
remaining kiln began to show separation after 3 months...developed 1/2"
fissures at the roof/wall joints. I filled all the cracks with new fiber
and sprayed the kiln with 2 THIN coats of ITC and it lasted over 3 years
longer, with no further separation. The ultimate demise of these kilns wa=
s
from heat fatigue in the suspension system of the modules, the metal
crystallized and broke, leading me to conclude that the modules were not
rated for 2300=BA.
The kiln that is now starting to show some shrinkage signs, has now been
coated for 3 years, and is rated by the manufacturer (moretti forni) at
1400=BA C. This kiln has been fired to ^6 on average 3 times a week for =
the
last 3 years.
It has been my experience that properly compressed modules, coated with 2
light coats of ITC, and fired within the specs of the material should las=
t
years before showing signs of failure.
You have me on one point...I have never completely built a fiber kiln by
myself, at least not on this scale (I won't count the Raku kilns I have
built...). But I have had the job of maintaining the ones I used, both go=
od
ones and bad (and the bad ones were real stinkers!). I do hope to build =
on
in the not too distant future, so I might want to pick your brain a bit w=
hen
I do!
Tommy
----- Original Message -----
From: "don hunt"
> I wouldn't be so bold as to say what someone I never met hasn't done, b=
ut
perhaps
> you never built a fiber kiln.
>
> Tommy Humphries wrote:
>
> > you obviously have never fired a fiber kiln coated with ITC...shrinka=
ge
is
> > no problem.
> >
> > Tommy
> >
> > ----- Original Message -----
> > From: "don hunt"
> >
> > > If the fiber is fired to its rating it absolutely will shrink.
> > >
> >
> >
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