what is the backing? Is it adhesive or does need to glued to surface?

It needs to be glued to the surface with resin.

Can this be used as an emi (electromagnetic interference) shield ? what is the electrical resistance ?

Yes, carbon fiber can be used as an EMI (Electromagnetic Interference) shield to some extent. Carbon fiber is an electrically conductive material, but its effectiveness as an EMI shield depends on various factors such as the specific carbon fiber composite used, its thickness, and the frequency range of the electromagnetic radiation you are trying to shield against. Carbon fiber composites can offer some level of EMI shielding due to their conductive properties, but they may not provide as high a level of shielding as other materials specifically designed for EMI protection, such as metal foils or conductive coatings. To improve the EMI shielding effectiveness of carbon fiber, additional measures like incorporating conductive additives or using hybrid structures with other shielding materials may be necessary. It is important to carefully consider the specific requirements of your application and consult with experts in the field to determine the most suitable shielding solution.

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Jecery 6.5ft x 12" Carbon Fiber Fabric Roll Pure Fabric Carbon Fiber Sheet 2 x 2 Twill Weave 3k/220g for Cars for Structural Reinforcement on Concrete Walls, Basements, Boats (1 Roll)

Product ID: 498919533

Details

Brand
Jecery
Color
Black
Item dimensions L x W x H
12.4 x 1.57 x
Material
carbon fiber
Shape
Rectangular

📏6.5ft x 12in precise size

🧵2x2 twill weave, 220g/m²

⚙️3k tow, 0.25mm thin & strong

24556CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Reinforce smarter, not harder — the carbon fiber roll that means business.

TAILORED FOR PRECISION - Generous 6.5ft length and 12-inch width roll fits diverse projects without waste.
ENGINEERED WEAVE STRENGTH - 2x2 twill pattern ensures balanced bi-directional tensile strength for superior durability.
LIGHTWEIGHT YET RESILIENT - At just 0.25mm thickness and 220g/m² weight, it delivers maximum reinforcement with minimal bulk.
CORROSION CHEMICAL RESISTANT - High carbon content fabric resists acids, alkalis, and harsh environments for lasting performance.
VERSATILE STRUCTURAL REINFORCEMENT - Perfect for automotive upgrades, concrete wall strengthening, boat repairs, and more—be the pro who upgrades with confidence.

Jecery’s 6.5ft x 12in carbon fiber fabric roll features a premium 2x2 twill weave with 3k tow and 220g/m² weight, delivering lightweight yet robust structural reinforcement. Its corrosion-resistant, flexible design is ideal for automotive, marine, and construction applications, providing professional-grade strength and durability in a convenient roll.

Specifications

ASIN	B0BCNQXN7D
Best Sellers Rank	#17,159 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Carbon Fiber Sheets
Brand Name	Jecery
Color	Black
Customer Reviews	4.7 4.7 out of 5 stars (321)
Grade Rating	Industrial
Item Diameter	12 Inches
Item Dimensions	12.4 x 1.57 x 1.57 inches
Item Form	Roll
Item Shape	Rectangular
Item Thickness	0.25 Millimeters
Item Weight	0.41 Pounds
Manufacturer	Jecery
Material	carbon fiber
Model Number	KH-Jecery-873
Number of Items	1
Part Number	KH-Jecery-873
Unit Count	1 Count

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24556CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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