search  current discussion  categories  glazes - specific colors 

green patch

updated mon 9 apr 01

 

Gail Dapogny on fri 6 apr 01


I was asking at one of the talks about repairing kiln walls where bricks
(semi-soft?) are loosening or even dislodging. Was told to get Green
Patch. Does anyone know what the formula is (for mixing some up on your
own) or what a suitable similar repair material would be? This is for a
cone 10/Reduction gas kiln.
Thanks.....Gail

Gail Dapogny
1154 Olden Road
Ann Arbor, MI 48103-3005
(734) 665-9816
gdapogny@umich.edu

Dannon Rhudy on sat 7 apr 01


....... bricks
>(semi-soft?) are loosening or even dislodging. Was told to get Green
>Patch. Does anyone know ... the formula ... or what a suitable similar
repair material would be? This is for a
>cone 10/Reduction gas kiln....

Gail, there are other possibilities for repairs inside the kiln.
However, the only one I've used that has worked without
failure is Greenpatch. It is a high-temp cement, impregnated
with fiber. It comes in 50 lb. or 1 gallon sizes, and is
worth the money. Get the smaller size unless you have a
huge amount of repair. It does not keep well, though there
are ways to retard the air-hardening of it (discovered this
the hard way, and wasted quite a bit, myself). The salesman
who sent the stuff originally failed to tell me that it had a
shelf-life (short) and when I called him to ask about it later
he laughed, said "you should have known". I'll find another
to buy from next time. Meanwhile, I have found what appears
to be a good way to preserve it for a while. Of course it
took diligent research - i.e., I asked Vince Pitelka - and
found that it is a water based material, so keeping the top
damp and the container sealed will keep it a while.

And Mel says Trowel-eze is good, too - but I've not used it.
And I don't know it's shelf life.

regards

Dannon Rhudy