Martin Howard on thu 22 feb 01
Jeff asks:- how to pass frits through the sieve?
I used to sieve everything separately, but found that was a waste of time.
Mix all the ingredients and add some water to keep down dust.
Sieve them together first through a 60 mesh, then 100 and finally, if
needed, a 120.
Put the sieve on two supports across a wide tub and ladle the mixture from
your bucket, keeping them close together to cut down on splashing.
I use a simple washing up brush for this. Several have come from the kitchen
to end up in the Pottery :-)
Different brushes for different materials.
Sometimes a flexible flat spatula works well to smash the little lumps of
frit and press them through the sieve mesh.
It does take time, so have a good CD or Radio program on.
Martin Howard
Webb's Cottage Pottery
Woolpits Road, Great Saling
BRAINTREE, Essex CM7 5DZ
England
martin@webbscottage.co.uk
Charles on thu 22 feb 01
WOW, reading through the processes used by people to sieve has got me
wondering if maybe I should do more to my glazes. My process is as follows.
Mix 20K batch of glaze in large Rubbermaid tub. Place 3 gal (rough estimate)
warm water to another tub. PUT ON RESPIRATOR. Unceremoniously dump glaze
powder into water immediately blunge with Jiffy Mixer attached to a
hammerdrill. Pour through 80 mesh screen back into original tub. Use kitchen
brush to both break up and press lumps through the screen. Then I add water
to make it the proper consistency. Works very well. Almost all of my glazes
use frits..never had any particular problem with frits except for their
tendency to settle. I find a little Bentonite blunged into the water before
I add the dry mix helps a lot. Then I'll toss in a couple tablespoons of
Epsom salts too.
Charles Hughes
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