CN
Electromagnetic shielding material
Silver-Aluminum Conductive Elastomer
Guanxu® GER-B02GM is a military-grade electromagnetic shielding elastomer formulated with a silicone rubber matrix filled with a high loading of silver-coated aluminum powder. Engineered to withstand the highest levels of electromagnetic pulse (EMP) threats, it delivers exceptional EMI shielding effectiveness while maintaining robust environmental sealing capabilities. This material is specifically designed for use in corrosive environments, offering excellent salt spray resistance, and simultaneously provides both EMI shielding and environmental sealing.
Key Features

Excellent electromagnetic interference (EMI) shielding performance

Superior resistance to electromagnetic pulse (EMP)

Outstanding thermal stability over a wide temperature range

Suitable for harsh, corrosive environments with proven salt fog resistance

Market Applications
Key Applications
Enclosure Shielding & Environmental Sealing: Used as gaskets for EMI shielding and moisture/vapor sealing in electronic enclosures.
Cable & Connector Applications: Extruded profiles serve as EMI shielding gaskets for connector housings and shielded compartments.
Custom Die-Cut Sheets: Sheet stock can be die-cut into complex shapes for EMI gaskets and compression seals on flanges, providing both electromagnetic shielding and environmental sealing under pressure.
Military-Grade (Type B) Solutions: Compliant with military specifications; ideal for EMI sealing elastomers in demanding defense and aerospace applications.
Molded Components: The compound can be compression or transfer molded into O-rings, custom-shaped seals, connector gaskets, and other precision elastomeric parts requiring combined EMI shielding and environmental protection.
Product Models
ItemUnitTypical ValueTest Standard
Base / Filler--Silicone rubber / Silver-coated aluminum powder--
Volume ResistivityΩ·cm≤0.008MIL-DTL-83528
Volume Resistivity after Thermal AgingΩ·cm≤0.01MIL-DTL-83528
Shielding EffectivenessdB≥80 @100MHz (E场)GJB 8820
≥95 @500MHz (E场)
≥100 @1GHz (平面波)
≥85 @2GHz (平面波)
≥85 @10GHz (平面波)
Densityg/cm³2.0±0.26GB/T 533
HardnessShore A65±7GB/T 531.1
Tensile StrengthMPa≥1.4GB/T 528
Elongation at Break%≥100GB/T 528
Tear StrengthkN/m≥5.3GB/T 529
Compression Set%≤32GB/T 7759.1
Operating Temperature-55~160--
Flame Rating--HBUL94