e-Therm 150

Thermaly Conductive Insulating Rubbers

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e-Therm 150 is a silicone rubber filled with conductive fillers and reinforced with fiberglass. This low cost material is ideal for transferring heat from electronic components while providing electrical insulation from heat sinks, where cost is also an important factor.
High thermal conductivity.  e-Therm150
High dielectric strength.
High thermal resistance and stability.
Thermal performance improves with age.
Effective over a wide range of temperature.
Reinforcement keeps also thin sheets resistant to tear.
Greaseless, non-flowing, non-cracking, one component material.
Flame retardant.
Chemical resistance for process cleaning agents.
Available in sheets or custom die-cut parts.
Standard thicknesses: 0.23, 0.30, 0.45, 0.80 mm.
Available also with pressure sensitive adhesive.
Physical Properties Typical Values Test Method
Elastomer binder Silicone   
Color Gray  
Operational Temperature, °C (-60) to (+180)  
Hardness, Shore A 82±5 ASTM D-2240
Tensile Strength, psi (Mpa) 2800 (19.3) ASTM D-412
Elongation, % 50 ASTM D-412
Tear Strength lb/in (kN/m) 310 (54) ASTM D-624
Volume Change in Water 24hr@25°C +0.2% ASTM D-471
Specific Gravity, gr/cm3 1.7 ASTM D-792
UL Flammability Rating V-0 UL94
Heat Aging after 70hr @ 200°C   ASTM D-573
Hardness Change, points 0  
Tensile Strength Change, %  +15  
Elongation Change, % -4  
Thermal Conductivity, W/m-K 1.0 ASTM D-5470
Thermal Impedance, 0.23mm 0.30mm 0.45mm 0.80mm ASTM D-5470
°C-in2/W 0.35 0.35 0.47 0.70 1.24  
Voltage Breakdown, 0.23mm 0.30mm 0.45mm 0.80mm ASTM D-149
KV 2.5 4 10 15  
Dielectric Constant @ 10KHz 5 ASTM D-150

NOTICE: The information contained herein is true to the best of our knowledge. However, since varied condition of potential use are beyond our control, users should make their own tests and evaluation to determine the suitability of our products in any specific situation and use. These products are sold without warranty, either expressed or implied, of fitness for a particular purpose or otherwise, except to the extent otherwise stated on Alvas quotation, order confirmation or invoice. We disclaim any liability incurred in connection with the use of information contained herein, or otherwise. All risks of such are assumed by the user.