Foils/Sheets/Cable Shields

MuMETAL® Foil

High-Permeability Foil for Maximum Magnetic Shielding

Ultra-thin, fully annealed. Ideal for shielding low-frequency magnetic fields where space and flexibility are critical.

Used in medical, laboratory, audio, aerospace, and industrial applications for precision electromagnetic shielding.

Flexible Shielding for Complex Applications

MuMETAL® Foil is our highest-performance shielding material, fully annealed for maximum initial permeability and attenuation. Designed for versatility, it provides a "ready-to-use" solution for low-frequency magnetic environments, including DC and 50/60 Hz fields.

Benefits

Why Choose MuMETAL® Foil?

No Re-Annealing Required

Unlike standard sheets, our foil is magnetically optimized and ready to perform immediately, unless subjected to heavy forming or welding.

High Shielding Efficiency

Offers extremely low coercivity and the highest permeability available in a flexible form.

Versatile Application

Thin enough to wrap, layer, or line confined spaces; easily adheres to flat or curved surfaces.

Protective Packaging

All foils are precision-rolled and boxed to prevent contamination or deformation during transit.

Standard MuMETAL® Foil Sizes

Available per linear foot. Contact us for volume discounts.

MuMETAL® Foil
Item #	Thickness	Width
MU002-8	0.002 in	8.00 in
MU004-8	0.004 in	8.00 in
MU006-8	0.006 in	8.00 in
MU008-8	0.008 in	8.00 in
MU010-8	0.010 in	8.00 in
MU004-12	0.004 in	12.00 in
MU006-12	0.006 in	12.00 in
MU008-12	0.008 in	12.00 in
MU010-12	0.010 in	12.00 in

Technical Properties & Use Cases

MuMETAL® Foil is the industry standard for experimental setups, transformer cores, and cable shielding where space constraints demand ultra-thin materials.

Material

High-nickel alloy with a smooth, uniform finish.

Stability

Reliable performance under ambient conditions.

Layering

Can be easily nested in multiple layers to exponentially increase attenuation.

Frequently Asked Questions

: No. Unless you perform severe forming or heliarc welding, re-annealing is not necessary.

Trusted in Critical Applications

From MRI rooms and magnetometers to audiophile-grade electronics and aerospace shielding, MuMETAL® Foil is trusted globally for performance in high-sensitivity environments.