|Monthly Tech-Tip |
Description: Lead bisilicate frit
Frits are made by melting mixes of raw materials, quenching the melt in water, grinding the pebbles into a powder. Frits have chemistries raw materials cannot.
BPS Lead Bisilicate
An alumina lead bisilicate from Hammond Lead Products in Indiana. The data sheet claims it is safe and insoluble in stomach acid.
Frits can contain 1% or 80% PbO so this category can be misleading, check the chemistry to find out.
A frit is the powdered form a man-made glass. Frits are premelted, then ground to a glass. They have tightly controlled chemistries, they are available for glazes of all types.
|Frit Softening Point||820C M|
|Density (Specific Gravity)||4.50|
|By Tony Hansen|
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