What is the EMC role of conductive adhesive in the structural sealing of edge computing boxes?

For edge computing box structure sealing, conductive adhesive is often used instead of conductive foam. When applied to narrow gaps or irregularly shaped areas, the conductive adhesive cures to form a continuous conductive elastomer. Its main EMC functions are:

1. Filling gaps to achieve low-impedance electrical connections; shielding effectiveness up to 50dB at 1GHz;

2. Environmental sealing for waterproofing and dustproofing;

3. Grounding and voltage equalization to prevent static electricity accumulation. The conductive adhesive has a volume resistivity of <0.05Ω·cm and a shear strength of >1MPa.

A typical application is the application of conductive silver paste at the junction of the LCD screen and the front panel. After curing, the resistance is <1Ω. The radiated emission of the edge box decreases by 8dB from 30-300MHz. Using Etymotic single-component conductive silicone, with a dispensing width of 1mm and a compression weight of 20%, it exhibits stable performance at -40℃ to 125℃ and withstands a 96-hour salt spray test.