Bruce Girrell on tue 8 jun 99
Frank Gaydos wrote:
> I wonder why it did not work in my kiln? Maybe because I only
> fired to cone 04?
> I followed the directions and applied thinly, but ended up chipping my
> shelves as usual.
I'm not sure what I expected ITC100 to look like, but I never expected it to
be so _gritty_. I mixed as directed and used a Critter sprayer for
application. The gun did clog from time to time, but I was always able to
re-establish flow without disassembling the sprayer.
At first I applied a thin coat to my shelves as directed, but after the
stuff dried it just looked too thin, so I applied a second, very liberal,
coat using a paintbrush. I used the shelves for a raku firing and when I was
done I had numerous little spots of glaze from glaze bubbles bursting plus
one fairly large crescent from glaze running to the bottom of a pot.
I needed to use a hammer and mason's chisel to chip the glaze off, but it
did come off pretty easily. What I found, though, was that the ITC coating
was sacrificed with the glaze. There was no damage to the shelf underneath,
but the ITC had been removed with the glaze, especially in the area of the
big run. Not a big problem. I dabbed the affected areas with some of the
leftover ITC.
So....
It works, but not the way I had imagined. This stuff ain't Teflon for your
kiln furniture.
Bruce Girrell
in muggy Northern Michigan, where I couldn't do a thing right yesterday.
Pieces broke in the kiln. Ones that didn't break, I dropped and broke. Ones
that I didn't drop, didn't reduce properly. The regulator's pressure gauge
died. I cut half the pieces for a plaster mold I was making an inch short.
Dadoed two others on the wrong side. Shut off the gas at 3:00 PM and went to
see a movie.
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