KIMBLE EN-1® GLASS - HERMETIC SEAL

Kimble Glass Company has not produced EN-1® glass in over a decade, but now our supplier has been licensed by Kimble Glass of Vinland, New Jersey to produce this excellent Hermetic sealing glass. Under the close supervision of Kimble, our supplier will melt EN-1® Glass to meet the ASTM F105-72 standard for Type 58 Borosilicate Sealing Glass. We will customize our melt to meet customer demand with exacting specifications in size ranging from .010" to .125" diameters. Contact us at sales@glassdynamicsllc.com.

Kovar Sealing Glass: Kimble EN-1®
Glass Code: Kimble EN-1®
EN-1
Type
Borosilicate
Color
Clear
Principal Use
Kovar Sealing
Thermal Expansion
Multiply by 10-7 cm/cm/°C
0 -300°C
47.0
Thermal Contraction
25°C. to Setting Point
64.0
Working Point
Log Viscosity = 4
1115° C
Softening Point
ASTM-C-338
716° C
Annealing Point
ASTM-C-336
482° C
Strain Point
ASTM-C-336
437° C
Density-Annealed gm/cc
2.27
Log10 of Volume Resistivity ohm/cm
250°C
5.1
350°C
7.2
Dielectric Properties (1MHz 25°C)
Dielectric Constant
5.1
Loss Factor %
1.3
Refractive Index
1.48

 

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