EMI Conductive Elastomer​

Good electrical conductivity and electromagnetic shielding performance

Conductive silicone shielding 

Conductive silicone rubber elastomer strips are made of silicone with metal powder filler. It is widely used because of its excellent EMI shielding effectiveness, environmental sealing, and long service life. Conductive filler is generally nickel graphite.

Electromagnetic interference (EMI), sometimes referred to as radio frequency interference (RFI).

Can be understood as a phenomenon in which one electromagnetic field interferes with another electromagnetic field, resulting in the destruction of one or both fields

It can solve the reliability problem of smart electronic equipment running in complex and harsh electro magnetic interference environments. 

It can be mass-produced according to the contours required by the customer, and the interface parts are bonded by a special process to make the interface performance consistent with other parts. And add double-sided tape on the back to meet the different application requirements of customers. 

To provide customers with environmental assessment failure performance and personalized counter measures and comprehensive solutions, with excellent stability performance, products are concentrated in communications equipment, aerospace, medical, electronics, machinery manufacturing, rail transportation, new energy and other industries. 

EMI shielding is a barrier against electromagnetic interference, essentially protecting the electronics of a device or system. Typically consisting of a metal shield that absorbs airborne interference, either around the sensitive electronics of the device to protect it from other devices, or around the transmission electronics in the device to prevent emissions.

EMI shielding is a barrier against electromagnetic interference, essentially protecting the electronics of a device or system. Typically consisting of a metal shield that absorbs airborne interference, either around the sensitive electronics of the device to protect it from other devices, or around the transmission electronics in the device to prevent emissions.

Silicone elastomers or silicone elastomerics most often refers to silicone-based polymers that have been vulcanized. To more intuitive and descriptive, often use the term “silicone rubber” . Silicone elastomers or silicone rubber materials are readily available, from 10 durometer Shore A (soft) to 70 durometer Shore A (firm).

Rubber is easily affected by heat, chemicals, fungus, ultraviolet light and ozone, affecting its service life. Silicone has higher heat resistance properties than natural rubber, allowing for more effective insulation. Silicone has a longer life expectancy than other elastomers.

Conductive fillers

Conductive fillers are mainly nickel graphite, silver glass, silver aluminum, silver copper. In addition to controlling EMI emissions and susceptibility to silicone gaskets, conductive gaskets also function as an environmental seal. With a certain percentage of compression, it is also rainproof (NEMA Class 3), high pressure washdown resistant (IP65, IP66, NEMA 4X) and resistant to water ingress (IP67, NEMA Class 6).

The Top silicone manufacturer, in china

with 16 years of experience

Available in standard sizes and shapes, 
extruded, molded and die-cut in any shape or size
as per design and requirements.

Related Information

 

Nickel-Graphite Filled Compounds – Electrically Conductive Elastomer – EMI/ESD
PDF#Material NameDescriptionDuro “A”Vol. Resist.
(Ohm-cm)
Common Applications
100C-2130Conductive Silicone, Nickel Graphite Filler300.3EMI Gaskets, UL 94 Rated, 36″ Wide Roll
101SNE-553Conductive Silicone, Nickel Graphite Filler300.125EMI Gaskets, Lowest Durometer, Sheets/Molded
102SNE-540Conductive Silicone, Nickel Graphite Filler400.03EMI Gaskets, Low Durometer, Sheets/Molded
103SNE-540-RReinforced Conductive Silicone, Nickel Graphite Filler400.004High Tensile Strength, X & Y Dimensional Stability, Continuous Sheet
104SNE-540-UL94V0Conductive Silicone, Nickel Graphite Filler400.5UL 94V-0 Flame Rated
105SNE-555Conductive Silicone, Nickel Graphite Filler550.05EMI Gaskets, Medium Durometer, Sheets/Molded
106SNEF-50Conductive Fluorosilicone, Nickel-Graphite Filler500.02Fuel Resistant EMI Gaskets, Sheets/Molded
107SNEF-60Conductive Fluorosilicone, Nickel-Graphite Filler600.04Fuel Resistant EMI Gaskets, Sheets/Molded
108SNE-556Conductive Silicone, Nickel Graphite Filler650.04EMI Gaskets, Firm Durometer, Sheets/Molded
109SNE-556-RReinforced Conductive Silicone, Nickel Graphite Filler650.007High Tensile Strength, X & Y Dimensional Stability, Continuous Sheet
110SNE-560-UL94V0Conductive Silicone, Nickel Graphite Filler600.3UL 94V-0 Flame Rated

 

Nickel-Coated Aluminum Filled Compounds – Electrically Conductive Galvanic Corrosion Resistant Elastomer – EMI/ESD
PDF#Material NameDescriptionDuro “A”Vol. Resist.
(Ohm-cm)
Common Applications
115SNA-568Conductive Silicone, Nickel-Coated Aluminum Filler680.08EMI Gaskets, Superior Galvanic Protection
116SNAF-572Conductive Fluorosilicone, Nickel-Coated Aluminum Filler720.03EMI Gaskets, Superior Galvanic Protection, Additional Fuel Resistance

 

Carbon Filled Compounds – Electrically Conductive Elastomer – ESD
PDF#Material NameDescriptionDuro “A”Vol. Resist.
(Ohm-cm)
Common Applications
121SE65-CONConductive Silicone, Carbon Filler655ESD Gaskets, ESD Pad, Sheets/Roll
122SCR7020-CONConductive Neoprene, Carbon Filler7015,000ESD Pad, ESD Gaskets, Medium Temperature Molding Compound

 

Material Properties of Silicone Rubber

>Long Term Compression Set Resistance

Unlike most organic elastomers, silicone maintains its resiliency over a broad temperature range and resists taking a permanent compression set. 

>Electrical Conductivity

Silicone Rubber can be blended with nickel-graphite or silver plated aluminum particles for electrically conductive gaskets that provide EMI (electro-magnetic interference) Shielding for electronic communication equipment. Conductive silicone is available in sheets or custom molded gaskets.

>FDA Regulations

Silicone Rubber can be compounded by using ingredients that meet FDA regulations for properties such as high tear strength and flexing using platinum based catalysts. 

>Flame Retardant Capabilities

Silicone Rubber can be compounded to be flame retardant and achieve UL94V0, UL94V1 and UL94HF1 certifications. Even when silicone rubber burns under extreme temperatures, the by-products are non-toxic and any residual ash continues to provide electrical insulation properties.

>Electro-Static Discharge (ESD)

Solid silicone rubber can be blended with semi-conductive carbon for ESD properties. Further, closed silicone will accept a surface coating of conductive silicone for soft gaskets and pads with ESD grounding properties.

>Thermal Conductivity

Silicone Rubber can be blended with ceramic powders such as alumina and boron nitride for thermal interface pads that help to dissipate heat from power generating devices in electronics. 

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