How Can Waterproof Ic Cards Be Guaranteed To Be Waterproof?

As an important information carrier in the IoT era, IC cards are widely used in various fields, including transportation, security, and water, electricity, and gas management. Their waterproof performance directly impacts their stability and lifespan. As a professional IC card supplier, Shenzhen Jianhe Chengda Technology, leveraging 16 years of R&D and production experience, has established a comprehensive waterproofing system, encompassing material selection, process innovation, and quality control testing, to ensure reliable operation in complex environments, including humid and underwater environments.

Common IC Card Types and Waterproofing Requirements

Common IC cards include contact IC cards (such as bank chip cards), contactless IC cards (such as bus cards and access control cards), dual-interface IC cards (combining contact and contactless functions), NFC cards, and RFID tags. IC cards used in swimming pools, water parks, and outdoor inspection environments have even higher waterproofing requirements, requiring them to meet IP67/IP68 protection standards to prevent moisture from penetrating the chip and causing data loss or short circuits.

Jianhe Chengda's Waterproof Performance Guarantee

1. Material Selection: Blocking Water Intrusion at the Source

Using high-temperature, corrosion-resistant, and environmentally friendly PVC, ABS, or PETG substrates, combined with waterproof ink printing, ensures a smooth and dense card surface. For demanding applications, polycarbonate (PC) is selected for its weather resistance, which can withstand long-term immersion and temperature fluctuations.

2. Process Innovation: Sealing Technology Builds a Strong Protective Barrier

Leveraging a comprehensive "printing-lamination-encapsulation-die-cutting" production line, ultrasonic welding and epoxy resin vacuum infusion are used to seamlessly seal the chip module and card substrate. The antenna coil of the contactless IC card adopts an embedded design, eliminating the gap risks associated with traditional adhesive bonding. The chip contacts of the contact IC card are protected against moisture intrusion through gold plating and waterproof rubber gaskets.

3. Rigorous Testing: Reliability Verified by Simulating Extreme Environments

Each batch of products undergoes multiple waterproofing tests: an 8-meter water pressure immersion test (no water seepage for 24 hours), a high-low temperature cycling test (-20°C to 70°C ambient temperature), and a friction and wear test (verifying the adhesion of the surface waterproof coating). Relying on a professional testing laboratory, we ensure 100% compliance with waterproofing standards for all products before they leave the factory.

Jianhe Chengda: A Trusted IC Card Supplier

As a leading domestic IC card supplier, Jianhe Chengda boasts a 5,000-square-meter standardized workshop equipped with multiple fully automated production lines for NFC cards and RFID tags, with a monthly production capacity exceeding 8 million IC cards and 10 million tags. Our products serve over 2,000 customers in industries such as transportation, anti-counterfeiting and traceability, and archive management, with exports to over 100 countries and regions. From material selection to customized design, we offer IP65 to IP68 waterproofing solutions tailored to customer environments (such as swimming pools, outdoor spaces, and underwater equipment), balancing durability with cost optimization.

Conclusion

If you have any questions about IC card waterproofing, material selection, or customization requirements, please contact the customer service staff of Shenzhen Jianhe Chengda Technology Co., Ltd. We will provide comprehensive support, from chip selection and process design to sample testing, tailored to your specific application scenario (such as humid environments or underwater operations), to recommend IC card products that combine waterproofing and cost-effectiveness.