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Frit Welte FR 2025

Description: Lead borate frit

Oxide Analysis Formula Tolerance
CaO 9.27% 0.53
PbO 32.78% 0.47
Al2O3 5.62% 0.18
B2O3 11.50% 0.53
SiO2 40.83% 2.18
Oxide Weight 320.41
Formula Weight 320.41

Related Information

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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 69.3 x10-7 (20-400C)
Glass Transition Temperature 550C
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