marci Boskie's Mama =^..^= on sun 19 mar 06
Gillie wrote:
>Can you supply liquid gold for enamelling?
>I would like a gloss and a matt finish if possible.
>I understand the firing temperature could be between 200 and 750 degrees =
>centrigrade.
>Perhaps you could let me have contact details of an outlet in UK. I am =
>in the South West.
>Thanks
Held of Harrogate http://www.held.co.uk/ is a
major supplier in the UK of overglaze materials and will have Liquid Bright
gold ( basically a low gold content shiny gold metallic luster ...
For some reason, their online catalog doesnt have an easy way to
search for gold... You have to go to the search box, type in GOLD and
scroll past the gold decals and other stuff to find the Liquid bright
and Burnish golds....
They have both 8 and 12% Bright Gold , Liquid Burnishing gold which
they call Silk Matt gold ( 11% gold content ) which will give a
satiny finished gold ( as opposed to the Liquid Bright which is very
shiny and brassy ) .... and they also have Burnishing Gold ( which we call
Roman gold in the US) which is a 24% gold content and is usually in a
paste form that must be thinned down to use ( with turpentine or lemon oil) .
Liquid bright and Silk Matt ( liquid burnish ) can be used right out of
the bottle but may sometimes need to be poured out onto a tile to
thicken a bit. Use a good brush dedicated only to gold work . ( The brush
can either be cleaned with lemon oil or can be suspended inside a bottle
or test tube with a little lavender oil in the bottom ( not touching
the bristles.. which will keep the brush soft ) . Bright gold will fire
very shiny on a shiny glaze but will fire matt on a matt glaze or over
fired china paint...Liquid burnish will fire matt on a shiny glaze.
Burnish gold ( Roman gold) will fire matt but it needs to be burnished
after removal from the kiln. ( This is easily done with a damp cloth and
baking soda ) . It will result in a rich , satiny gold finish ...
There is a good article on gold use on our PPIO website
http://www.ppio.com , go to the library page, then to "Gold "..( also , the
author of that book , Gene Patterson , has an excellent expanded version of
the article in his book:" A book for the Curious Painter" which contains a
lot of great information about overglaze work :
http://www.ppio.com/Genepatterson.html
As for firing temps: It will depend on how soft the glaze youre working
over is. We generally work on a range of glazes from bone china ( soft) to
commercially fired porcelain ( hard) ...and for a soft glaze , you would
fire in the range of a cone 018 ( about 700 C ) to an 015 cone ( about 800
C) for a hard glaze.
Feel free to email me if you have more questions
Marci Blattenberger Boskie's Mama =^..^=
http://www.marciblattenberger.com
marci@ppio.com
Porcelain Painters International Online http://www.ppio.com
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