Laur Silicone

Silicone Properties
The first practical silicone rubbers were introduced in the mid 1940’s. Since then continual improvements have been made. Today a broad range of physical properties are available including:

Useful temperature range
-175 ºF to 500+ ºF
Hardness, Shore A
20 to 90
Tensile Strength, psi
up to 1,600
Elongation, %
up to 1,000
Tear Resistance, ppi
up to 300
Compression Set, %
down to 8
Specific Gravity
1.0 to 2.1
Volume Resistivity, Ohm-cm
1015 to 1017
Electric Strength, volt/mil
600 to 650
Dielectric Constant (60 cps)
3.0 to 3.5

In addition to these properties silicone rubber also offers: long service life, inertness, and good chemical, weather, flame, and radiation resistance.

We at Laur Silicone are proud to have played a part in these improvements, and remain committed to further progress.