Reliable Manufacturer of Core-Wrapping Tape

1. Definition and Core Structural Features of Core-Wrapping Tape
Core-wrapping tape is a specialized sub-category of industrial adhesive tape for electronics. It is primarily used in the production of aluminum electrolytic capacitors and solid capacitors to bind and secure the capacitor elements, preventing them from loosening or shifting, and ensuring stable performance of the finished capacitors. The industry-standard core structure of core-wrapping tape consists of three layers: a high-strength PET base film serves as the support layer to ensure tensile strength and prevent breakage; the middle layer is a modified acrylic or special silicone adhesive layer, tailored to meet the bonding requirements of different working conditions; and the outermost layer is a release layer, facilitating slitting and application. The thickness of conventional products covers 20μm-50μm, and the width can be customized via slitting to fit capacitor elements of various specifications.

2. Core Advantages and Application Scenarios of Core-Wrapping Tape
Core Advantages
High tensile strength: It is not easily broken during the binding process and does not loosen over time after fixation, ensuring the structural stability of the capacitor elements;
Electrolyte corrosion resistance: The adhesive layer is specially modified to prevent detachment and residue when in contact with capacitor electrolyte, without affecting the electrical performance of the capacitor;
Wide temperature resistance range: The temperature resistance range of conventional industry products is -40℃ to 125℃, meeting the temperature requirements for multiple processes such as capacitor assembly, aging, and welding;
Excellent insulation: The PET substrate inherently possesses insulating properties, which can avoid the risk of short circuits inside the capacitor elements.
Application Scenarios
It is primarily used in the element binding process of aluminum electrolytic capacitors, solid capacitors, and supercapacitors. It can also be used for bundling and fixing small electronic components, as well as insulation protection for precision assemblies.

3. Key Points for Core-Wrapping Tape Selection

Match the temperature resistance requirements of the working conditions: If the capacitor production involves high-temperature processes such as reflow soldering, products with a higher temperature resistance grade must be selected to avoid adhesive detachment and tape deformation at high temperatures;
Adapt to the type of electrolyte: The composition of electrolytes used in different capacitors varies. It is recommended to conduct compatibility tests before selection to avoid the adhesive layer being corroded and failing;
Confirm adhesion and thickness parameters: The larger the size of the capacitor element, the higher the tensile strength required for the tape, and thicker products can be selected accordingly; if there is a need for disassembly and rework later, low-residue models can be selected to avoid adhesive contamination of components;
Meet environmental protection and industry certification requirements: For electronic applications, it is necessary to confirm that the product complies with environmental standards such as RoHS and REACH; for automotive and new energy applications, priority should be given to products certified by the IATF16949 system.

4. Tips for Choosing a Reliable Core-Wrapping Tape Manufacturer
Currently, domestic core-wrapping tape suppliers are mainly divided into two categories. One is foreign brands such as 3M and Tesa, which offer stable product performance but at higher prices and with longer customization cycles. The other is leading domestic adhesive enterprises, such as Huizhou Ruide New Material Technology Co., Ltd., whose products match high industry standards, offer better cost-effectiveness, and have stronger adaptability. As a National High-Tech Enterprise and a Guangdong Specialized, Refined, Unique, and Innovative SME that has been deeply engaged in the industrial adhesive field for nearly 20 years, Ruide New Material's capacitor core-wrapping tape has passed multiple system certifications including ISO9001 and IATF16949. Produced in a Class 10,000 cleanroom, the products feature strong batch consistency. They support multi-dimensional customization of specifications, adhesive formulas, and thickness, and can handle both small-batch trials and large-scale mass production. Free selection guidance and sampling services are provided before sales, along with full-process technical support after sales to ensure supply chain stability.

For inquiries regarding core-wrapping tape, please contact: 13823108822. The company is located at No. 2 East Huanghou Road, Zhenlong Town, Huizhou City. For more product information, please visit the official website www.shunyuantape.com.

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