Thermal / RF Shielding

Name: Thermal / RF Shielding
Brand: Darcoid
Availability: PreOrder

Elastomers by default are poor conductors of heat and electrical charge. For applications requiring thermal transfer such as heat sinks, or blocking of RF interference, please access Darcoid’s library of specially created thermal and RF shielding compounds.

Specs

Pressure Low, Medium, High

Dynamic Service Speed Low

Seal Directionality Bidirectional

Manufacturing Method Stamping, Cutting

Common Modifications Different formulations for thermal or conductivity modification

Catalog Standards N/A

Customizable Yes

Comparative Cost $$$

Special Applications

Face seal gaskets for RF and conductive elastomer requirements. Parker Chomerics brand provide flexible, effective and reliable EMI shielding and thermal interface solutions.

More Information

Elastomers modified for conductivity

Normally considered as non conductive, metals can be incorporated to modify electrical and thermal transfer properties of the elastomer. This enables the seal element to provide double duty managing RF, EDI, and thermal interfaces. Engage with Darcoid's technical team so we can understand your requirements and provide the best possible solution.

Thermal & RF Shielding FAQs

Can one gasket provide both EMI shielding and environmental sealing?

Yes. Electrically conductive elastomers combine an elastomer binder with conductive particles, allowing the gasket to maintain electrical contact across an enclosure seam while also providing an environmental sealing function. This approach is used in electronics, aerospace and defense, industrial equipment, medical devices, telecommunications, and other applications requiring both enclosure protection and EMI control.

How do I choose a conductive elastomer material?

Selection involves both the elastomer binder and conductive filler. The binder influences temperature capability, fluid compatibility, weather resistance and mechanical behavior, while the conductive filler influences shielding performance, corrosion compatibility, weight, and cost. Housing material and the operating environment should therefore be considered along with required shielding effectiveness.

Why is gasket compression so important for EMI shielding?

A conductive gasket must create a reliable electrical path across the mating interface while remaining within its acceptable mechanical deflection range. Too little compression can create high-resistance gaps and reduce shielding; too much compression or gland overfill can damage the gasket. Flange stiffness, fastener spacing, groove dimensions, tolerances, and gasket geometry are all part of the EMI seal design.