e-Sil 300 Series

Conductive Nickel-Graphite Silicone

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e-Sil 300 series is composed of a silicone elastomer filled with Nickel plated Graphite particles exhibiting high electrical conductivity, providing highly effective shielding and offering excellent moisture sealing. These excellent performance coupled with enhanced environmental resistance with non or very slight deterioration of conductivity and shielding effectiveness in adverse environment enable wide range of commercial and military applications. Both e-Sil 367 and e-Sil 366 are high performance materials, in high and low hardness.
Good tensile and tear strength.  e-sil 300
Very good compression set to maintain sealing force over verylong period of time.
Effective over a wide range of temperatures.
Good sealing under moderate closing force.
Improved mechanical properties enables molding of complicated geometry and delicate parts.
The material provides cost effective production solutions.
Available in sheets in every thickness and custom die-cut parts with or without pressure sensitive adhesive.
Available as custom molded parts.
Physical Properties Typical Values  Test Method
Grade Name e-Sil 366 e-Sil 367  
Elastomer binder Silicone     
Conductive filler Nickel Plated Graphite Particles   
Color Beige    
Operational Temperature, °C (-45) to (+150)   
Hardness, Shore A, ± 7 60 70  ASTM D-2240
Tensile Strength, Mpa (psi), ±1.5 2.5 2.8  ASTM D-412
Elongation, %, Min 250 225  ASTM D-412
Tear Strength kN/m (lb/in) , ±6.0 11.0 14.0  ASTM D-624
Specific Gravity, gr/cm3, ±0.30 1.5 2.0  ASTM D-792
Compression Set, 70hr@100°C, Max 25% 30%  ASTM D-395
Volume Resistivity, Ω-cm 0.047 0.018 Mil-DTL-83528
Shielding Effectivness    
H-Field, 100 kHz, dB 90 90  SAE ARP1705
E-Field, 100 MHz-10GHz, dB 125 125 Mil-DTL-83528B
E-Field, 400 MHz-10GHz, dB 125 125 Mil-DTL-83528B
Plane Wave, 2 GHz, dB 115 115 Mil-DTL-83528B
Plane Wave, 10GHz, dB 115 115 Mil-DTL-83528B

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.