Die-Cut Materials: Detailed Explanation of Copper Duct Tape

What is Copper Duct Tape?

Copper duct tape is a type of metal tape primarily used for electromagnetic shielding. It can be classified into two types: electrical signal shielding and magnetic signal shielding. Electrical signal shielding mainly relies on the excellent conductivity of copper itself, whereas magnetic shielding requires the conductive substance "nickel" on the adhesive side of the copper duct tape to achieve magnetic shielding. Therefore, it is widely used in mobile phones, laptops, and other digital products.

Classification of Copper Duct Tape

Copper duct tape is divided into single-sided adhesive and double-sided adhesive.

Single-sided adhesive copper duct tape can be further divided into single-conductive and double-conductive copper duct tape. Single-conductive copper duct tape means that the adhesive side is not conductive, only the other side of copper is conductive, hence it is called single-conductive (conductive on one side only). Double-conductive copper duct tape means that both the adhesive side and the other side of copper are conductive, making it double-conductive (conductive on both sides).

Double-sided adhesive copper duct tape is often used to create more expensive composite materials with other materials. The adhesive side of copper duct tape can also be either conductive or non-conductive.

Characteristics of Copper Duct Tape

Copper has a low surface oxygen characteristic, allowing it to adhere to various substrates like metals and insulating materials, with a wide range of temperature uses. It is mainly used for electromagnetic shielding and anti-static purposes. By placing conductive copper foil on the substrate and combining it with metal base materials, it provides excellent conductivity and electromagnetic shielding effects.
The purity of copper duct tape is above 99.95%, and its function is to eliminate electromagnetic interference (EMI), isolate the harm of electromagnetic waves to the human body, and prevent unnecessary voltage and current from affecting functionality.
Copper duct tape has a good effect on discharging static electricity after grounding objects. It has strong adhesion and good conductivity.

Applications of Copper Duct Tape

Copper duct tape is mainly used for shielding and protecting computer monitors and peripheral cables, as well as in the manufacturing process of transformers. It is also widely used for sealing pipeline joints in household appliances such as central air conditioning, range hoods, refrigerators, and water heaters, providing durable protection and anti-corrosion.

Additionally, copper duct tape is used in precise electronic products, computer equipment, and electrical wires and cables. In high-frequency signal transmission, it effectively isolates electromagnetic wave interference. Its excellent high-temperature resistance also prevents spontaneous combustion in high-temperature environments, providing safer and more reliable protection for equipment.

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