Conductive ESD Foam Insert Black Die Cut Anti Static EVA Foam Inner Packaging

This conductive ESD foam insert is manufactured from carbon-loaded black EVA foam with a permanently conductive formulation, delivering a volume resistivity of 10e3 to 10e6 ohm.cm across the entire sheet. Unlike surface-coated antistatic materials that lose performance when cut, the conductive properties of this foam remain fully effective after die cutting, CNC routing, or water jet profiling, which makes it the preferred inner packaging cushion for PCB boards, IC trays, hard drives, and other static-sensitive components during domestic and international shipping.

Each conductive foam insert is precision die cut to match customer drawings, producing clean edges without conductive dust contamination. The closed-cell structure absorbs mechanical shock, isolates vibration, and resists moisture, while the black conductive layer safely drains electrostatic charges away from the protected components. For electronics manufacturers and EMS companies that demand repeatable ESD protection, this insert offers a dependable balance of mechanical cushioning and electrical performance.

• Permanent conductive protection: carbon-impregnated EVA foam delivers stable volume resistivity of 10e3 to 10e6 ohm.cm, independent of environmental humidity, and remains conductive after cutting and aging.
• Precision die-cut inserts: custom shapes are produced by CNC die cutting and rotary cutting according to customer 2D or 3D drawings, with dimensional tolerance controlled within 1 mm for reliable nesting of components.
• Superior shock absorption: the independent closed-cell structure provides excellent cushioning and damping performance, protecting fragile electronic parts from impact and vibration in transit.
• Clean and non-contaminating: low sloughing foam does not stain components, leaves no conductive residue, and will not corrode PCBs, connectors, or metal housings.
• Wide thickness range: available from 2 mm to 200 mm in density grades from 60 to 100 kg per cubic meter, letting packaging engineers tune stiffness and compression set for the specific product weight.
• Easy secondary processing: the material can be laminated, adhesive backed, skived, or thermoformed, and it cuts cleanly with standard tooling for quick prototyping and mass production.

Conductive ESD foam inserts are widely used as inner packaging cushions for sensitive electronics. Typical applications include PCB board separation layers inside shipping cartons, IC tray covers and component wells, hard disk drive packaging, connector and relay trays, optical module carriers, and protective nests for precision instruments. The foam is also shaped into corner guards and edge cushions for display panels and automotive electronic control units, where both electrostatic discharge control and mechanical protection are mandatory.

Because the material meets the general ESD control requirements referenced by IEC 61340-5-1 style protection programs, it suits clean room staging, kitting lines, and export packing stations where multiple handling steps expose components to triboelectric charging.

We supply standard sheets and fully customized inserts. Customers only need to send the product drawing, the component dimensions, or a sample unit, and our engineering team will propose the cell layout, wall thickness, and foam density. Prototypes are normally delivered within 5 to 7 working days, and production tooling changes are kept minimal so that small batch orders remain economical. Custom size, custom shape, logo printing, and adhesive backing are all available on request.

Inserts are packed in film-lined cartons with palletizing to prevent deformation during ocean freight, and each lot is inspected for dimensional accuracy, density, and surface resistance before shipment. Our factory is experienced in export packing for electronics components, and we keep the packaging details simple and recyclable to reduce landed cost. Every order is supported by a quality report covering volume resistivity and physical dimensions, and our sales engineers are available to answer questions about material selection, ESD standards, and transit testing. Please contact us with your component list or drawing to receive a quotation and free material samples.