On June 18, 2004, FAW Car Co., Ltd. initiated a recall for the Mazda 6 CA7230AT sedan manufactured by FAW Group between December 26, 2002, and March 25, 2004. This action was taken to address a potential safety issue identified in these vehicles. The core problem lies in the insufficient gap between the fuel tank insulation device and the exhaust pipe. During operation, rising temperatures from both the fuel and the surrounding area can cause increased pressure within the fuel tank. As a result, the fuel tank may expand more than expected, reducing its structural stiffness.
This thermal expansion can lead to excessive heat transfer between the insulation and the exhaust system, causing the fuel tank’s surface temperature to exceed safe limits. In extreme cases, this could result in partial deformation or even localized melting of the fuel tank. To resolve this, FAW will implement three key measures: adding insulation pads to the fuel tank, replacing the existing insulation jacket with an improved version, and incorporating short glass fibers into the insulation material to enhance heat resistance.
Although no defects have been reported in the Chinese market so far, the issue was identified through laboratory testing conducted by Mazda Motor Corporation of Japan. In order to ensure that Chinese Mazda 6 customers receive the same level of service as their international counterparts, FAW Car Co., Ltd. submitted a recall report to the General Administration of Quality Supervision, Inspection and Quarantine on June 17, 2004. The recall was then launched in coordination with Mazda Japan on June 18, 2004.
All affected Mazda 6 owners will be contacted directly by FAW Car (Mazda) service centers to schedule free repair services. FAW has also expressed its sincere apologies for any inconvenience this may have caused to customers. For more information, car owners can visit the official websites listed to check recall announcements and details about authorized service providers. This proactive approach demonstrates FAW's commitment to customer safety and satisfaction.
UV conformal adhesive is an adhesive that can cure quickly under ultraviolet irradiation. It is mainly used to protect electronic components from moisture, dust and chemical substances.It can be used for protection of circuit boards.
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Characteristics of UV curable conformal coating：
1.Fast curing: Under ultraviolet irradiation, it can be quickly cured in a short time to improve production efficiency.
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2.Good protective performance: It can effectively prevent moisture, dust and chemical substances from damaging electronic components and extend the service life of electronic equipment.
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3.High transparency: It has good transparency after curing and does not affect the appearance and marking of electronic components.
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4.High and low temperature resistance: It can still maintain stable performance in different temperature environments.
5.Environmental protection: generally does not contain harmful solvents and meets environmental protection requirements.
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Application
1. Consumer Electronics
- ​Devices: Smartphones, wearables, tablets, laptops, and IoT devices.
- ​Purpose: Protect PCBs from moisture, dust, and chemical exposure in compact, high-density designs.
- ​Advantage: Fast curing (<1 minute) supports high-volume production.
​2. Automotive Electronics
- ​Components: Engine control units (ECUs), sensors, infotainment systems, EV battery management systems (BMS), and ADAS modules.
- ​Purpose: Shield against temperature extremes, vibration, humidity, and automotive fluids (e.g., oils, fuels).
- ​Advantage: Low thermal stress prevents damage to heat-sensitive parts.
​3. Aerospace and Defense
- ​Applications: Avionics, radar systems, satellite electronics, and communication modules.
- ​Purpose: Ensure reliability in extreme environments (high altitude, radiation, thermal cycling).
- ​Advantage: Meets stringent MIL-STD and IPC standards for durability.
​4. Medical Devices
- ​Examples: Implantable devices, diagnostic equipment, wearable monitors, and surgical tools.
- ​Purpose: Protect against bodily fluids, sterilization processes (e.g., autoclaving), and biocompatibility requirements.
- ​Advantage: Low-VOC formulations comply with FDA and ISO 13485 standards.
​5. Industrial Electronics
- ​Applications: Motor drives, robotics, power supplies, and automation controllers.
- ​Purpose: Resist dust, chemicals, and humidity in harsh factory or outdoor environments.
- ​Advantage: High dielectric strength prevents short circuits in high-voltage systems.
​6. LED Lighting
- ​Use Cases: PCB protection in LED drivers, streetlights, and horticultural lighting systems.
- ​Purpose: Guard against thermal stress, humidity, and UV/IR exposure.
- ​Advantage: Transparent coatings maintain light output efficiency.
​7. Telecommunications
- ​Components: 5G infrastructure, base stations, routers, and fiber-optic modules.
- ​Purpose: Ensure signal integrity and protect against environmental corrosion.
- ​Advantage: Thin, uniform coatings minimize signal interference.
​8. Military and Ruggedized Systems
- ​Examples: Battlefield communication devices, unmanned vehicles, and missile guidance systems.
- ​Purpose: Enhance survivability under shock, vibration, and extreme temperatures.
- ​Advantage: Rapid field repairs using portable UV lamps.
​9. IoT and Smart Devices
- ​Applications: Smart home sensors, agricultural monitors, and asset-tracking systems.
- ​Purpose: Enable long-term reliability in diverse environmental conditions.
- ​Advantage: Selective coating reduces material waste in small-scale designs.
​10. Renewable Energy Systems
- ​Components: Solar inverters, wind turbine controllers, and battery storage systems.
- ​Purpose: Protect against outdoor exposure, temperature fluctuations, and salt spray.
- ​Advantage: UV resistance prevents yellowing or degradation over time.
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