Conductive rubber sheets

electrically conductive rubber sheets

In EMI shielding, this rubber in particular is used as a medium to provide electrical conductivity

The rubber is made conductive by incorporating small conductive metal particles throughout the material. It can provide an EMI-proof and watertight seal in narrow constructions.

Electrically conductive rubbers are typically used for EMI
applications. But they are also useful for EMP protection,
wave-guide applications and against static electricity.
The rubber can be filled with silver, nickel, silvered glass, silvered aluminium, or graphite (only for ESD). Commercial EMI applications often choose Nickel-graphite conductive rubber (Part number 5760) or Graphite conductive rubber (Part number 5755) from a costs point of view, while military and aerospace applications often call for silver plated aluminium (Part number 5750) to meet Mil-G-83528C specifications. In military or aerospace, fluorosilicone versions may also be used due to their chemical and fuel resistance.

As the material shields high frequencies, electrically conductive rubber shows a shielding effect of 60 dB at 30MHz ~ 10GHz. Due to its excellent conductivity, grounding, and EMI shielding effect, it is well suited for military communications equipment. The rubber can be manufactured in various shapes such as sheets, molded parts, die-cut, strips, o-rings, etc.


 Conductive adhesive information (Conductive PSA)
Property Unit Outcome Test method
Surface resistance Ω/sq <0.10 MIL-DTL-83528C
Adhesive strength G/25mm 850 ASTM D 3330
Conductive PSA - Acrylic + Ni -
Liner - Paper, Film -
Please note: Conductive adhesive is optional. By default, these Conductive rubber gaskets are supplied without adhesive.
Benefits
  • Excellent conductivity on the entire surface
  • Excellent electromagnetic shielding effect
  • Easy die-cutting, kiss-cutting and slitting
  • Temperature ranges of -60 to +185°C
    (under certain circumstances, tolerance can be up to 220°C

Electrically conductive rubber
is available as

Special materials (on request)

These conductive rubber sheets are also available in special materials for special applications for example applications with chemicals. Below is a list of special materials. For availability and delivery please email [email protected]

  • Silicone Carbon
  • Fluorosilicone Nickel Graphite
  • Silicone Nickel Graphite Flame Retardant
  • Silicone Silver Aluminium
  • Fluorosilicone Silver Aluminium
  • Fluorosilicone Nickel
  • Silver Plated Nickel
  • Silvered Glass
  • EPDM (thickness 1 mm)
  • Silver copper silicone conductive rubber

Conductive rubber 5750-S series cut according to customer drawing
Conductive rubber 5750-S series cut according to customer drawing
Conductive rubber 5750 series can be made as small as the tip of a pen
Conductive rubber 5750 series can be made as small as the tip of a pen
Custom sheet size on request
Custom sheet size on request

Technical properties
Part number 5750
silver plated aluminium
5755
Graphite
5760
Nickel graphite
Filler Ag/Al Graphite Ni-graphite
Base polymer Silicone Silicone Silicone
Width (mm) 610 x 660 430 x 450 610 x 660
Elongation, %, min. 90 50 50
Flame resistance, UL94 (horizontal) HB HB HB
Flame resistance, UL94 (vertical) V-0 V-0 V-0
Volume resistance, Ohm-cm
(expression of conductivity)
0.008 1.8 0.05
Surface Resistance, Ω/sq 2   3-5
Operating temp. +125 +160 +160
Range (°C) -55 -50 -55
Colour Dark tan Black Dark grey
Shore Hardness (A +/-5) ASTM D2240 65 60 60
Volume Resistivity (ohms) ASTM D991 0.005 2.2 0.04
Shore A (1 mm thickness) 73 71 70
Shore A (2 mm thickness) 70 75 60
Tensile strength. psi, min. 90 50 50
Cost $$$ $ $$
Conductivity *** * **
Shielding performance

Please note : These values are measured under laboratory conditions. Results may vary in other situations; please read our Guarantee.


What questions need to be answered to select the right material?
  1. What is the approximate shielding effectiveness you need to achieve for your application?
  2. What environment will this material be exposed to? Does the rubber need to be solvent or fuel resistant (fluorosilicone)?
  3. Are you looking for a semi-conductive/static dissipating material or is this a true EMI/RFI shielding application?

Silver plated aluminium (Dark tan) 5750
5750 silver plated aluminium
Ag/Al Silicone conductive rubber
(silver plated aluminium) 5750
Thickness (mm) 0.3, 0.5, 1.0, 1.2, 1.5, 1.7, 2.0, 2.5, 3.0 
Part number 5750-S
Graphite conductive rubber (black) 5755
5755 graphite
Graphite conductive rubber
(black) 5755
Thickness (mm) 1.0, 1.2, 1.5, 1.7, 2.0, 2.5, 3.0
Part number 5755-S
Ni-Graphite conductive rubber (dark gray) 5760
5760 nickel graphite
Ni-Graphite conductive rubber
(dark gray) 5760
Thickness (mm) 0.3, 0.5, 1.0, 1.2, 1.5, 1.7, 2.0, 2.5, 3.0
Part number 5760-S
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