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Hommel Frit 442

Description: Leadless calcium magnesium borosilicate frit

Oxide Analysis Formula Tolerance
CaO 12.72% 0.51
K2O 3.29% 0.08
MgO 3.04% 0.17
Na2O 6.53% 0.24
B2O3 11.63% 0.38
Al2O3 7.12% 0.16
SiO2 55.67% 2.09
Oxide Weight 226.03
Formula Weight 226.03

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.
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 7.90
Co-efficient of Linear Expansion 7.9 x 10-6
Frit Softening Point 1550F
Frit Melting Range (C) 1550F
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