Expert in Comprehensive PCBA Full-Process Services
Three-Protective Coating Spraying Service
Why is conformal coating necessary?
Unprotected PCBA assemblies exposed to complex environments are susceptible to the following factors, which can lead to early failures:
Moisture and condensation: cause circuit leakage, short circuits, and metal migration (dendrite growth).
Salt spray and chemical gases: corrode component leads and PCB copper traces, leading to open circuits or parameter drift.
Dust and impurities: can cause localized overheating or electrical short circuits.
Mechanical Vibration and Stress: May Lead to Fatigue Cracking of Solder Joints in Large Components.
Mold growth: Impairs insulation performance in humid and hot environments.
2. What can our coating solutions do?
By precisely applying a specialized three-proof coating, a dense, transparent, and robust protective film is formed, enabling:
Outstanding environmental isolation: moisture-proof, mildew-resistant, and salt-spray-resistant, significantly extending the product’s service life in humid and contaminated environments.
Robust electrical protection: provides high dielectric strength to prevent tracking and arcing, and can also serve as an earthquake-resistant cushioning layer.
Comprehensive process compatibility: protects solder joints, traces, and components from physical damage during subsequent assembly processes, such as potting and transportation.
Industry-certified compliance: Assisting products in meeting the stringent PCBA protection-rating requirements of sectors such as automotive electronics and rail transit.
3. Typical Application Industries
Automotive electronics: engine control unit (ECU), on-board charger, sensors.
Industrial Control: Outdoor Communication Base Stations, Industrial Automation Controllers, Variable Frequency Drives, and Instruments & Meters.
New Energy and Power: photovoltaic inverters, energy storage system BMS, and charging pile modules.
Specialized equipment: security surveillance, outdoor LED displays, and medical devices.
Consumer Electronics: Used in core boards for smart home and wearable devices that demand high reliability.
4. Our Core Service Advantages
Seamless Process Integration: As your one-stop provider for “SMT + DIP + Conformal Coating,” we eliminate the risks of PCBA handling and communication costs associated with cross-factory transfers, ensure unified quality accountability across the entire process, and shorten overall lead times.
Technology and Expertise: Our engineering team has in-depth expertise in the compatibility of conformal coatings with various materials and components, enabling effective resolution of common process issues such as coating creep, bubble formation, and orange-peel defects.
Customization and Flexibility: We offer rapid small-batch prototyping and can flexibly adjust production-line configurations to match your desired output, seamlessly transitioning from pilot runs to full-scale mass production.
Let Te Yi Electronics’ professional three-proof coating services be the assurance of your products’ stable operation in harsh environments.
A professional EMS (Electronic Manufacturing Service) company dedicated to providing customers with end-to-end manufacturing services, including SMT, DIP, post-soldering, assembly, adjustment, complete-unit testing, and finished-product packaging and shipment.
No.19 ,CHUANG YE 1ST RD,NINGBO,FREE TRADE ZONE(WEST),R.P.O.C