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Schott GM39923 Dental Glass

Category Ceramic , Glass , Oxide , Silicon Oxide
Manufacturer Schott North America
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
Remarks: Ba- and F-containing, low refractive glassApplication: CompositeAdvantagesGreater variety of composition and refractive indiciesOutstanding transparencyBest radiopacitiesInformation Provided by SCHOTT North America, Inc.
Physical Properties Metric English Comments
Density 2.80 g/cc
0.101 lb/in³
Thermal Properties Metric English Comments
CTE, linear 5.00 µm/m-°C

@Temperature -30.0 - 70.0 °C
2.78 µin/in-°F

@Temperature -22.0 - 158 °F
Transformation Temperature, Tg 590 °C
1090 °F
ISO 7884-8
Optical Properties Metric English Comments
Refractive Index 1.52
1.52
n<sub>d</sub>
Component Elements Properties Metric English Comments
Al2O3 10 %
10 %
B2O3 10 %
10 %
BaO 25 %
25 %
Fluorine, F 2.0 %
2.0 %
SiO2 55 %
55 %
Descriptive Properties Value Comments
Hydrolytic Resistance Class 1
DIN ISO 719
Radiopacity (digital method) 560
ISO 4049
Radiopacity as thickness of aluminium equal to 2-mm thick glass material 4.2 (210%)
ISO 4049
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