Pemco Frit PC-4X63

Description: Low flux high boron/silica low expansion frit

Oxide	Analysis	Formula
Li2O	1.50%	0.67
K2O	0.10%	0.01
Al2O3	7.00%	0.91
Na2O	1.50%	0.32
SiO2	69.90%	15.39
B2O3	20.00%	3.80
Oxide Weight		1,322.91
Formula Weight		1,322.91

Notes

Suggested recipe cone 03 gas firing:
Frit 93%
Ball Clay 7
Black Glaze Stain 5
CMC 0.2

It appears the melting temperature of 1350C is overstated, it obviously melts earlier.

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	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	3.7 x 10-6
Frit Melting Range (C)	1350C

By Tony Hansen
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