Allyson May on tue 13 dec 05
I put color on my horsehair pots with Ferric chloride. This is sold at =
Radio Shack as PCB etchant. It is very nasty stuff so you should read =
all precautionary information and follow it!! Ferric can be painted on =
burnished bisqueware and then fired as you normally fire your horsehair =
pieces. An even coat in patterns or stripes is what you want. Heavy =
coat will produce a darker reddish color, lighter coat is more yellow =
orange. Kiln should be very well ventilated. I fire in a propane raku =
kiln outside. I wear a respirator when checking the temp or looking in =
the peeps. Remove the piece from the kiln and add the horsehair as =
usual. Ferric can also be sprayed on the hot piece after it is removed =
from the kiln. The hotter the piece the darker and more red the color =
of the ferric. The cooler the piece the more yellow the color of the =
Ferric. If you spray Ferric you must get away from all metals so the =
drift will not contact them. Ferric eats metal. Also wear a respirator =
and cover all exposed skin and your eyes. The Ferric also gives the =
piece a very slight but beautiful iridescent sheen. This method of =
spraying can also be used over white crackle raku just before setting it =
in the reduction bin. Hope this helps.
Peace,
Allyson May
Stoney Creek Pottery
AMay4@msn.com
Al Strauss on sun 25 dec 05
I have had some very good results spraying with RIO as it comes out of the
kiln, before applying horsehair. I get a nice reddish-pink hue on white
stoneware.
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