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Pemco Frit Pb-2C52

Alternate Names: Frit Pb2C52

Description: All-fritted opaque leaded glaze

Oxide Analysis Formula
CaO 7.50% 0.50
K2O 1.60% 0.06
MgO 0.50% 0.05
Na2O 1.80% 0.11
PbO 16.50% 0.28
ZrO2 5.00% 0.15
B2O3 3.60% 0.19
Al2O3 8.10% 0.30
SiO2 55.50% 3.47
Oxide Weight 376.26
Formula Weight 376.26

Notes

With an 8% addition of clay fires in the range Cone 01 - Cone 6.

Related Information

Links

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.
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 5.80
Co-efficient of Linear Expansion 5.8 x 10-6 (50-450C)
Frit Softening Point 1720F
Frit Melting Range (C) 1680-1800F
I.F.P. (celsius) 633C
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