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Schott GM31685 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
Download PDF	Schott GM31685 Dental Glass.pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

Remarks: Low refractive index glass ceramicApplication: CompositeAdvantagesGreater variety of composition and refractive indiciesOutstanding transparencyBest radiopacitiesInformation Provided by SCHOTT North America, Inc.

Physical Properties	Metric	English	Comments
Density	2.60 g/cc	0.0939 lb/inÂ³

Thermal Properties	Metric	English	Comments
CTE, linear	1.00 Âµm/m-Â°C @Temperature -30.0 - 70.0 Â°C	0.556 Âµin/in-Â°F @Temperature -22.0 - 158 Â°F
Transformation Temperature, Tg	800 Â°C	1470 Â°F	ISO 7884-8

Optical Properties	Metric	English	Comments
Refractive Index	1.53	1.53	n<sub>d</sub>

Component Elements Properties	Metric	English
Al2O3	20 %	20 %
K2O	1.0 %	1.0 %
MgO	5.0 %	5.0 %
SiO2	60 %	60 %
ZrO2	5.0 %	5.0 %

Descriptive Properties	Value	Comments
Hydrolytic Resistance	Class 1	DIN ISO 719
Li2O (%)	5
Radiopacity (digital method)	170	ISO 4049
Radiopacity as thickness of aluminium equal to 2-mm thick glass material	1.5 (75%)	ISO 4049
Ta2O5 (%)	1
ZnO (%)	1

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