Expanded metal foils for EMI shielding.

Featured Product from Dexmet Corporation

Dexmet EMI Shielding Materials Provide Open Area Maximum Protection
The Dexmet MicroGrid® EM series of expanded metal foils (EMFs) are versatile, effective materials for shielding against electromagnetic interference (EMI). EMFs are formed from solid metal foil in a proven, economical “slit-and-stretch” process. They are electrically continuous and, unlike knit or woven meshes, exhibit consistent and predictable conductivity.

Thin, strong, flexible and lightweight, EMFs will not fray or unravel, and conform readily to complex surfaces, making them well-suited to composite manufacturing processes.

Standard configurations include copper, aluminum, nickel and Monel meshes at .002 and .003″ thick (50 and 75µm). Dexmet can readily produce custom types using other metals and foil thicknesses, including Cu and Al types down to .001″ (25µm). The open area of the mesh can be precision-tailored to meet user requirements for weight, resistivity, formability and shielding effectiveness.


  • Shielded enclosures
  • Gaskets
  • Ventilation screens
  • Cable shielding
  • Laminated structures
  • Cockpit electronics


See why some of the world's most recognizable companies turn to Dexmet when developing applications with expanded materials. learn more

The Dexmet Blog 
The latest in engineering and manufacturing news, trends and insights straight from the Dexmet experts.

Dexmet Corporation manufactures precision expanded metals, foils and polymers with exacting mechanical and electrical properties to meet very tight conductivity, weight and dimensional tolerances. The company maintains a continuous commitment to quality control and process improvement, including SPC implementation. Ongoing innovations include our unique, strand annealing furnace, as well as a host of other, highly specialized, proprietary equipment.

Dexmet’s solid customer base is predicated upon its reputation as the premier, quality supplier of precision-expanded metal foils. Many of our customers are among the world’s most recognized brands. When they need quality expanded material for their end products and applications they come to Dexmet. We welcome you to the family of Dexmet customers.

The Dexmet Quality System is ISO 9001:2008 certified. The company subscribes to the standard’s requisite features, including documentation and record-keeping, while it also maintains a flexible stance toward evolving standards and innovative ideas from our customers and employees. Thus, whenever a better way emerges to reduce cost, reduce scrap, improve quality, improve customer service and make it easier for our employees to produce your product with the smallest possible product variation, Dexmet’s Quality System is poised to incorporate these benefits.

The Dexmet Quality System is driven by the needs of our customers. We have adopted many suggestions from our customers and will continue to do so. It is this teamwork that makes us better.