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Mo-Sci Corporation GL1681

Mo-Sci Corporation GL1681 is a compliant (viscous) sealing glass is white colored in powder form.

Product Type: Sealant

Application Area: Sensors, Solar Cell

Compatible Substrates & Surfaces: Ceramic, Glass, Metal

Chemical Family: Mixtures & Blends

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Identification & Functionality

Chemical Family
Product Type

Features & Benefits

Labeling Claims
Ready-to-Use Product Features

Applications & Uses

Application Area
Compatible Substrates & Surfaces
Plastics & Elastomers End Uses
Applications
  • Operational Temperature: up to 850 °C
  • The typical application of GL1681 sealing glass is to seal ceramics and metals at high temperatures. Common applications of sealing glass include: solid oxide fuel cells (SOFCs), solar cells, sodium ion batteries, high-temperature sensors, and other sealing, bonding, or coating applications.

Properties

Physical Form
Chemical Properties
ValueUnitsTest Method / Conditions
Boron oxide (B2O3) (by weight)32.37 - 39.57%
Barium oxide (BaO) (by weight)31.69 - 38.73%
Silica (SiO2) (by weight)13.5 - 17.5%
Strontium oxide (SrO) (by weight)4.76 - 7.14%
Alumina (Al2O3) (by weight)4.68 - 7.02%
Calcium oxide (CaO) (by weight)2.58 - 3.86%
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity3.2g/cm³
Glass Transition Temperature624 ± 10°C
Softening Temperature (Td)660 ± 10°C
Coefficient of Thermal Expansion (50 - 500 °C)8.0 x 10-6°C

Technical Details & Test Data

Recommended Firing Conditions
  • Ramp to 850 °C and hold for 2 to 4 hours.
  • Heating or cooling rate: 3 to 10 °C/min