Boyd on fri 16 may 97
Bisque-fix-it Say that 10 times.
Anyone know of a commercial product or something I can concoct to patch a
crack in the bottom of a cone 08 bisque pot soon to be glaze fired? Clay
is cone 6-10 stoneware. Thanks, it's a LARGE pot.
Boyd
Iron River MI
Brooks Burgess on sat 17 may 97
At 07:44 AM 5/16/97 EDT, you wrote:
>----------------------------Original message----------------------------
>Bisque-fix-it Say that 10 times.
>
>Anyone know of a commercial product or something I can concoct to patch a
>crack in the bottom of a cone 08 bisque pot soon to be glaze fired? Clay
>is cone 6-10 stoneware. Thanks, it's a LARGE pot.
>
>Boyd
>Iron River MI
>
>you might try Bray Patch. Sold in Ceramics Monthly. Good luck.
Brooks
The Slack-DeBrock Family on sat 17 may 97
A recipe I have for bisque patch is: Ball Clay 20, Grolleg kaolin 50,
Potash 30. Mix and apply when creamy. Brush on and burnish with finger.
Hope it works!Joan Slack-DeBrock/River Run Pottery
P.O.Box 95
McNaughton, WI 54543
715-277-2773
riverrun@newnorth.net
Sandra Dwiggins on sat 17 may 97
I've tried this Apt-II stuff for high fire. You mix the material with some
crushed bisque and fill the crack. It works, but I wouldn't use it
anywhere that is visible on the pot--the bottom is fine.
You can get this from Axner...and probably several other places.
Sandy
TC on sat 17 may 97
How about Apt II? It comes in hi and low fire formulae. Think Axner stocks
it. Never used it for bisque --just on greenware and it's swell-- though
the instructions say it can.
TC in Mich
Karen Gringhuis on sat 17 may 97
Graham Marks in Alfred NY 607-587-9401 office or 607-478-8178
markets s product which may suit your needs. I've not used it
but I hear it works. Karen Gringhuis Or write him at
29 W. University Alfred NY 14802
Bob Chance on sat 17 may 97
My favorite bisque patch consists of equal parts calcined Kaolin and 100
mesh Kyanite mixed with equal parts liquid sodium silicate and white
(Elmer's) glue until the consistency of putty. Apply and sand when dry.
You can glaze over it.
Bob Chance
http://www.furman.edu/~chance/chance.html
Vince Pitelka on sat 17 may 97
>Anyone know of a commercial product or something I can concoct to patch a
>crack in the bottom of a cone 08 bisque pot soon to be glaze fired? Clay
>is cone 6-10 stoneware. Thanks, it's a LARGE pot.
Boyd -
I suppose this depends on what kind of pot it is. If there is any intention
of this pot being a food vessel, forget it. Take it outside, utter a sacred
incantation, throw it up in the air, and stand back - the classic
"twice-thrown" pot. Normally I do not believe in fixing defective pots, but
when Adelaide Alsop Robineau fired the "Scrab Vase" for the first time, it
was badly cracked, and she mixed up some repair compound (does anyone know
what repair compound?) and fixed it. The result is one of the finest pieces
of Art Nouveau ceramics ever created. So if this pot is very special to
you, and is not a food vessel, it may well be worth fixing.
If you want to completely seal the crack, so that the piece will hold water,
my favorite fix-it compound is AP Green Greenpatch-421. This is an air-set
refractory cement normally used for kiln repair, but I have used it for
repairing sculpture many times. It develops good dry strength, and once it
is dry-set it can be glazed. It also can be tinted with stains, but only to
make it darker than it is already, and as is it reduction-fires to a rich
brown. Since the crack in your piece is in the bottom the color of the
repair is probably not a concern. To be absolutely sure of a good repair if
you DO want a water-tight fix, as in a large vase, re-bisque the pot, and
check for any hairline cracks along the joint, and re-patch these with more
Greenpatch-421 before glazing and glaze-firing..
There are a number of commercial menders on the market, such as Braypatch
(from the Archie Bray Foundation), and others listed in ceramics catalogs,
but I am not familiar with the use of these products.
- Vince
Vince Pitelka - vpitelka@DeKalb.net
Phone - home 615/597-5376, work 615/597-6801
Appalachian Center for Crafts
1560 Craft Center Drive, Smithville TN 37166
Fay & Ralph Loewenthal on sun 18 may 97
-------------------
Dear all, we have had this before. At the time somebody posted this none
commercial recipe, which works great for me. Just take some fireclay and =
sodium
silicate and mix it into a nice mix like mortar. Hope this helps Ralph in a
balmy PE SA
Robert S. Bruch on sun 18 may 97
I am getting into this discussion on the late side,
but how do any of these bisque-patch formulas work
when it comes to glazing. My experience has been that
many of them need some sort of 'slip' to cover them
as a pure glaze will often run off the patched area.
Do they work as well in the green state?
--
Bob Bruch rsb8@po.cwru.edu
JULIE ATWOOD on thu 22 may 97
> Boyd -
> I suppose this depends on what kind of pot it is. If there is any intention
> of this pot being a food vessel, forget it. Take it outside, utter a sacred
> incantation, throw it up in the air, and stand back - the classic
> "twice-thrown" pot. Normally I do not believe in fixing defective pots, but
Oh-oh...sacred incantation? Gee, I do everything but that. Or does a
good strong swear word count?
Good golly, with all the things to think about, now I have to come up
with a sacred incantation. ;) Heheheh...
Boyd on thu 22 may 97
Julie -
An ancient fire side incantation once heard by Chief Seattles wife:
Iamreal,Iamreal,Iamreal
Boyd, In Iron River MI, sitting next to a very large chard pile, sipping
coffee under the first warm rays of morning sun.
| |
|
