Pemco Frit P-1090

Alternate Names: Frit 1090, Frit P1090

Description: Leadless borax frit for semi matte glazes

Oxide	Analysis	Formula
CaO	12.50%	0.50
K2O	3.40%	0.08
MgO	3.20%	0.18
Na2O	6.60%	0.24
B2O3	12.20%	0.39
Al2O3	7.10%	0.16
SiO2	55.10%	2.06
Oxide Weight		225.06
Formula Weight		225.06

Notes

Comment: Used as a component of a vellum-type matte glaze firing at Cone 3 to Cone 5. This glaze is good on dinnerware because it will not knife-mark in general usage.

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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.
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	9.3x10-6 (50-450C)
Frit Melting Range (C)	1420-1520F
I.F.P. (celsius)	607C

By Tony Hansen
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