Would this be effective for shielding the magnetic fields from a breaker box?

Only if you can COMPLETLY surround the box with the shield or measure the EM field to determine the field direction and enclose the box with a closed loop normal to the field direction

Can i use this foil for core material and concentrating magnetic flux?

Yes, magnetic flux does concentrate in the material due to its high permeability. But, if you are making a laminated core or tape-wound toroidal core this will not be correct because the foil does not have an insulating coating to isolate each lamination. So, you will have eddy current losses. The frequency for 100% skin depth of this .010" thick Foil would be 300-400Hz. We make and sell custom toroidal and rod cores in our factory. Please contact us directly for more information. If you have more questions please contact us directly.

Can I use this on analytical balances for the laboratory to avoid stirrer bar magnetic interference?

Hello, Our material is used for shielding low level magnetic fields. The best shields are ones that completely surround the item to be protected. What type of shield are you making? thanks,

What is the % attenuation?

tough to answer without knowing whether the locsl strength is low enough to avoid saturation of the MuMetal. there is plenty of info online to help you with this assuming you have access to a Gaussmeter

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MuMETAL® Magnetic Shielding Foil .010" Thick 8" x 12" Sheet

MuMETAL® Magnetic Shielding Foil .010" Thick 8" x 12" Sheet

Product ID: 70445671

Details

Brand
MUMETAL
Color
Silver
Item Diameter
20.32
Material
MuMETAL
Shape
Rectangular

📏8" x 12" generous coverage

🔬80% Nickel alloy for max permeability

🛡️0.010" thick flexible shield

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MOP$1590

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Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Shield your tech, silence the noise — stay ahead in the electromagnetic game!

EFFORTLESS INSTALLATION - Adhesive-friendly surface for quick, secure mounting without hassle.
FLEXIBLE CUSTOMIZABLE - Easily cut with scissors to fit any device or component size.
PRECISION SHIELDING POWER - Full magnetic anneal ensures peak EMI protection for sensitive electronics.
PREMIUM ALLOY COMPOSITION - 80% Nickel, 5% Molybdenum, 15% Iron blend engineered for superior low-frequency magnetic shielding.
OPTIMIZED FOR LOW INTENSITY FIELDS - Designed to block low-frequency H-fields up to 1kHz AC or static DC, perfect for delicate electronics.

MuMETAL® Magnetic Shielding Foil is a premium 0.010" thick, 8" x 12" flexible sheet made from a high-permeability nickel-based alloy. Fully annealed for maximum magnetic shielding, it effectively protects sensitive electronics from low-frequency electromagnetic interference up to 1kHz AC or static DC. Easy to cut and mount, this commercial-grade foil is ideal for professionals seeking reliable EMI protection in compact, customizable form.

Specifications

ASIN	B017ABLYRO
Best Sellers Rank	#402,978 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9,824 in Industrial Materials
Brand Name	MUMETAL
Color	Silver
Customer Reviews	4.1 4.1 out of 5 stars (36)
Grade Rating	Commercial
Item Diameter	20.32 Centimeters
Item Form	Sheet
Item Shape	Rectangular
Item Thickness	10 Mils
Manufacturer	Magnetic Shield Corporation
Material	MuMETAL
Model Number	MU010-8-12
Number of Items	1
Part Number	MU010-8-12
UPC	741533874927

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