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Pemco Frit Pb-740

Alternate Names: Frit Pb740

Description: High zinc frit for matte glazes cone 06-4

Oxide Analysis Formula
Na2O 1.20% 0.04
PbO 56.80% 0.49
ZnO 20.00% 0.47
Al2O3 2.00% 0.04
SiO2 20.00% 0.64
Oxide Weight 192.48
Formula Weight 192.48

Related Information

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Materials 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.
Materials Hommel Frit 573
Typecodes Leaded Frit
Frits can contain 1% or 80% PbO so this category can be misleading, check the chemistry to find out.
Typecodes Frit
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.

Data

Co-efficient of Linear Expansion 6.70
Co-efficient of Linear Expansion 6.7 x 10-6 (40-450C)
Frit Softening Point 1600F
Frit Melting Range (C) 1560-1650F
I.F.P. (celsius) 580C
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