EMI/RFI shielding in electronics
See also: Lighting, Water and Telecommunications · Mobility · Industrial Manufacturing and Chemicals
What it is
EMI/RFI (Electromagnetic Interference / Radio Frequency Interference) shielding foams are reticulated PU foams (fully open cells) metallized or impregnated with conductive particles, used as conductive seals between components of electronic enclosures. The function is dual: mechanically sealing enclosure joints (preventing dust and humidity ingress) and forming a continuous conductive path that blocks electromagnetic interference emission and reception. Critical applications: server and datacenter enclosures, telecommunications equipment (5G base stations), military electronics, medical devices sensitive to EMI (MRI, monitoring equipment), aerospace equipment, automotive electronics (especially in EVs with high electronic density). Growing market strongly driven by 5G, industrial IoT and electronic densification in electric vehicles.
Why it matters
For electronics manufacturers and EMS, emi/rfi shielding foams is a decision simultaneously impacting unit cost, field failure rate, regulatory certification and production cycle time. Wrong material costs cents per unit and hundreds of millions in accumulated recall. Right material delivers years of operation without failure even in aggressive environments.
Current drivers. Miniaturization and power density grow in all segments — each generation packs more function per cm², generating more heat and more contamination vulnerability. Regulation of electronics in specific environments (medical ISO 13485, automotive IATF 16949, aerospace AS9100) gets stricter. And industrial electrification (5G, EVs, Industry 4.0, IoT) created new consumer segments in accelerated expansion.
What to evaluate
Unlock What to evaluate on EMI/RFI shielding in electronics.
Quick one-time registration — permanent access to all technical content in the portal.
Market
Unlock Market on EMI/RFI shielding in electronics.
Quick one-time registration — permanent access to all technical content in the portal.
Value proposition
Unlock Value proposition on EMI/RFI shielding in electronics.
Quick one-time registration — permanent access to all technical content in the portal.
Talk to a Chemtier specialist
We bring chemistry to your shop floor: technical system recommendations, supply and process support.
Related applications
PCB and electronic components potting compounds
2K rigid PU potting · 2K flexible PU potting
TPU cable jacketing
Polyester TPU · Polyether TPU
PU conformal coatings for electronics
Solvent-based thin PU coating · Waterborne PU coating
Electronic device housings in TPU
Injected TPU (flexible housings) · PU reaction injection molding (RIM)