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over fired clayu

updated tue 11 jan 11

 

Lesley Alexander on mon 10 jan 11


Planning a tile job that could use pre-made tiles, but they come in low fir=
e
clay. Bailey says they tested them also at ^5 and ^6 and they came out ok i=
f
properly supported. My question is, are these over-fired tiles too brittle
for long term use? Has anyone any experience with over-fired items? Lesley

John Goode on mon 10 jan 11


I would never use factory bisque at hi fire temps.
John Goode

On Mon, Jan 10, 2011 at 9:03 AM, Lesley Alexander wrote=
:

> Planning a tile job that could use pre-made tiles, but they come in low
> fire
> clay. Bailey says they tested them also at ^5 and ^6 and they came out ok
> if
> properly supported. My question is, are these over-fired tiles too brittl=
e
> for long term use? Has anyone any experience with over-fired items? Lesl=
ey
>

Steve Mills on tue 11 jan 11


Dear Lesley
That depends on what they are intended for!
Either way, get four and progressively over-fire them. That way you'll know=
f=3D
or certain.=3D20
After all, nobody else fires your kiln the way you do, so any advice you ge=
t=3D
from us here is not the absolute answer!!

Steve M


Steve Mills
Bath
UK
Sent from my Itouch

On 10 Jan 2011, at 15:03, Lesley Alexander wrote:

> Planning a tile job that could use pre-made tiles, but they come in low f=
i=3D
re
> clay. Bailey says they tested them also at ^5 and ^6 and they came out ok=
i=3D
f
> properly supported. My question is, are these over-fired tiles too brittl=
e=3D

> for long term use? Has anyone any experience with over-fired items? Lesl=
e=3D
y