Omnidirectional Conductive Sponge

All-round conductive sponge is a material produced by the foaming technology of polymer polyurethane composite materials. It is typically made from conductive fabric, base materials, antistatic agents, and conductive fillers. The base materials mainly include modified polyethylene, polyethylene, polyurethane, and other polymer materials. The all-round conductive sponge undergoes special processing techniques to make its surface or interior conductive, effectively conducting electric current or electromagnetic signals.

Omnidirectional conductive sponge is a special type of electromagnetic shielding material that can provide continuous conductive paths in three dimensions. Compared to traditional conductive sponges, all-round conductive sponge has higher safety and reliability, corrosion resistance, good bending durability, and superior electromagnetic shielding performance. These characteristics make the demand for all-round conductive sponge very strong in fields such as automotive electronics, consumer electronics, aerospace, and national defense and military industry.

What are the advantages of conductive sponge in electromagnetic shielding?

Excellent Conductivity and EMI Shielding Performance: Conductive sponge, through special processing, has conductive properties on its surface or inside, effectively conducting electric current or electromagnetic signals, and is widely used in electronic devices to prevent electromagnetic interference (EMI) and other related electromagnetic wave interference.

Uniform Foam Pore Size: Conductive sponge, produced using foaming technology, has a uniform pore size distribution, which helps maintain the overall performance and stability of the material.

Soft and Elastic: Conductive sponge is soft and elastic, providing good cushioning and protective effects.

Corrosion Resistance: Due to its material composition and special processing techniques, conductive sponge typically has good corrosion resistance, capable of withstanding the erosion of acids, alkalis, and other chemical substances.

Unaffected by Temperature and Humidity: The conductivity of conductive sponge is stable and not easily influenced by changes in temperature and humidity.

High Reliability and Safety: Omnidirectional conductive sponge has high reliability and safety, corrosion resistance, good bending durability, and superior electromagnetic shielding performance, which is in strong demand in fields such as automotive electronics, consumer electronics, aerospace, and national defense.

Low Closure Force and Good Resilience: Omnidirectional conductive sponge has low closure force and good resilience, can be customized in shape/size, and complies with ROHS environmental standards.

High Shielding Effectiveness: The shielding effectiveness of omnidirectional conductive sponge can reach 60-90dB, with a surface resistance of 0.2Ω/sq, meeting the technical requirements of electromagnetic compatibility in industries such as EMI/RFI electronics, communications, military, aerospace, and medical instruments.

Wide Operating Frequency Range: Omnidirectional conductive sponge covers a wide range of operating frequencies, from 14KHz to 10GHz, providing effective electromagnetic shielding.

The performance characteristics of all-round conductive sponge include:

Excellent electrical conductivity: The all-round conductive sponge has excellent electrical conductivity, which allows it to effectively conduct electric current and electromagnetic signals.

Uniform foam pore size: The all-round conductive sponge, produced using foaming technology, has a uniform pore size distribution that helps maintain the overall performance and stability of the material.

Soft and elastic: The all-round conductive sponge is soft and elastic, providing good cushioning and protective effects.

Corrosion resistance: The all-round conductive sponge typically has good corrosion resistance and can withstand the erosion of acids, alkalis, and other chemical substances.

Not affected by temperature and humidity: The electrical conductivity of the all-round conductive sponge is stable and not easily influenced by changes in temperature and humidity.

Conductive Sponge Production

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Hongty Insulation – Omnidirectional conductive sponge

Conductive Foam and Omnidirectional Conductive Sponge

The manufacturing process of all-round conductive sponge includes steps such as foaming, filling, surface treatment, molding, and cutting. Foaming is the core step in the preparation of the all-round conductive sponge and plays a decisive role in the quality and performance of the finished product. The shielding effectiveness and physical properties of the all-round conductive sponge make it an ideal choice in the field of electromagnetic shielding, especially in applications that require high shielding effectiveness and stability.

Technical indicators: shielding efficiency ≥ 70dB, compression rate of 10-40%, surface resistance ≤ 0.03Ω, abrasion resistance ≥ 1 million times, the operating temperature of -55 ~ +160 ℃, with a small impedance, corrosion resistance, oxidation resistance, and good compatibility with the metal contact surfaces, the ordering of products of the flame retardant level up to UL94-V0.