EMI Magnetic Shielding Alloys Supplier | Custom Fabricated Shields | MuMETAL® Science Research and Education
WORLDWIDE MANUFACTURER and  DISTRIBUTOR Since 1941   Magnetic Shield Corporation, a division of Perfection Mica Company, is the premier supplier of custom magnetic shielding alloys and custom Built shields.

high attenuation MAGNETIC SHIELDING

Co-NETIC® Sheet

Perfection Annealed Sheet

Co-NETIC® Foil

Co-NETIC®  Perfection Annealed Foil

Co-NETIC® AA Perfection Annealed Sheet & Foil
Co-NETIC® AA alloy is used where high attenuation is desired. Available as fully annealed, ready for use in shielding applications, sheets are used for flat shields such as covers, panels, doors, plates, or walls and flat surfaces. Typically, no further annealing is required. In fact, we do not recommend re-anneal as this may cause structural degradation. Our Perfection Annealed Sheet & Foil has been fully annealed to exacting specifications in a quality controlled annealing environment which builds grain structure, an important mechanical property required for ultimate shielding performance.

Perfection Annealed sheet
is available in stock gauges from 0.014" to 0.062" thickness [0,36mm to 1,57mm]. Our Co-NETIC® Sheet is also available Stress Annealed by request. Co-NETIC® AA Perfection Foil stock is fully annealed and available in gauges from 0.002" to 0.010" thickness [0,05mm to 0,25mm]. Foil provides effective shielding with minimum fabrication, avoiding expensive tooling and extended deliveries. Thus, our foil has become the preferred material for many production, prototype and laboratory evaluation projects.

Co-NETIC® AA Stress Annealed Sheet is used where further processing is required. Available as stress annealed or partially annealed for ease of machinability, it is used for fabricated shields such as enclosures.
Learn More - Co-NETIC® Products 

Typical applications include:
• shielding hand-held devices
field-sensitive components
printed circuit boards
signal leads
power cables

Co-NETIC® Alloy Is Recognized Worldwide
To provide our manufacturing, OEM, design and research customers the best magnetic shields, we have refined our proprietary brand of Co-NETIC® alloy and our AA Perfection Annealing process over the last few decades. Co-NETIC® has been used in many demanding applications and is one of the most recognized and specified brands of magnetic shielding alloy worldwide - thousands of solutions have been designed and millions of shields have been produced using Co-NETIC® shielding alloy.
And, starting with our shielding alloys is easy – many users explore the effects of magnetic shielding through use of our Magnetic Shielding Lab Kits; quickly prototyping, experimenting and testing solutions for their magnetic interference problems. Our Sample Kits contain Co-NETIC® materials.
Learn More - Evaluation Lab Kits

SPECIAL NOTE: When space is limited, and to save on costs, our Co-NETIC® B Alloy can be used. This alloy is a cross between Co-NETIC® and NETIC® and generally provides properties of both. In certain applications Co-NETIC® B may be used, but only when high initial permeability and highest attenuation are not necessary.
Learn More - Co-NETIC® B Products

Shielding Calculations | Alloy Material Selection

Whether you want to learn shielding theory, shielding calculations, or the differences between our shielding alloys, we can help. We are all affected by, and becoming acutely aware, of the affects electromagnetic interference has on safety and compliance. Each day we receive unique inquiries from OEM, design, electrical engineers, high-tech professionals, inventors, scientists, and buying professionals - many with limited knowledge of how magnetic shielding materials can be used to avoid unwanted interference.
Learn More - Technical Resources and Tools
Certifications | Specifications
Physical and chemical certification of Co-NETIC® may be provided upon request with your order. RoHS, DFARs, military, aerospace, industrial and OEM certifications are also available. Co-NETIC® alloy does conform to specifications 1J79, 79, ASTM A-753, Alloy 4 and MIL N-14411C, Composition 1.
Learn more - Technical Data

Co-NETIC® Brochure
High Attenuation Magnetic
Shielding Performance
Magnetic Shield Corp. Brochure

Magnetic Shield Corporation
Leading the way since 1941

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