Dexmet Corporation, a subsidiary of PPG Industries, engineers the MicroGrid® EM series of precision expanded metal foils to deliver high‑performance, repeatable solutions for electromagnetic interference (EMI) shielding and advanced structural‑electrical applications.

The continuous‑strand architecture produced through Dexmet’s controlled expansion process yields a mechanically robust, electrically uniform lattice that provides far more predictable conductivity than woven or knitted meshes, which inherently suffer from strand crossover variability and inconsistent contact resistance.

A superior alternative to woven wire, Dexmet’s precision‑expanded metals are optimized for applications requiring a stable, open‑area structure with tightly controlled dimensional tolerances. These engineered foils are deployed across a broad range of industries, including aerospace and wind energy for lightning strike protection (LSP), EMI and RF shielding for electronics and avionics, advanced primary and secondary battery electrode design, automotive bearings and bushings, and high‑efficiency air and hydraulic filtration systems.

All Dexmet expanded metals can be tailored to meet specific mechanical, electrical, and environmental performance parameters. Whether the requirement is EMI shielding effectiveness, surface conductivity for lightning strike dissipation, formability for composite layup, or porosity for fluid‑flow optimization, the metal‑foil expansion process is infinitely adjustable. Strand width, strand thickness, LWD/SWD geometry, and open‑area percentage can all be fine‑tuned to achieve precise performance targets.

Dexmet MicroGrid® expanded metal foils are available in a wide range of ductile metals—including aluminum, copper, nickel, titanium, and specialty alloys—and can also be manufactured using customer‑supplied or proprietary materials. This flexibility enables engineers to integrate MicroGrid® foils into next‑generation systems where weight, conductivity, corrosion resistance, and mechanical integrity must be simultaneously optimized.