Industrial control equipment operates for a long time in complex environments such as high temperature, high humidity, heavy dust and corrosive gases. As the core control unit, the conformal coating protection and soldering quality of circuit boards directly determine the stability, service life and operation and maintenance costs of the equipment.

  In response to common industry pain points such as conformal coating and soldering defects, and combined with our core products (conformal coating, flux), we provide targeted solutions to help industrial control enterprises reduce failure risks and improve product reliability.

  I. Analysis of Core Pain Points of Circuit Boards in the Industrial Control Sector

(I) Pain Points of Conformal Coating

The harsh environment in industrial control scenarios easily leads to the failure of circuit board protection. The core pain points are as follows:The coating is prone to cracking and peeling, failing to effectively block the invasion of moisture and salt spray; there are dead zones in coating application, allowing moisture to intrude from uncoated areas and cause corrosion; poor compatibility between flux residues and conformal coating results in coating delamination, blistering, and even short circuits; incomplete curing or inappropriate thickness of the coating makes it susceptible to cracking under long-term high and low temperature cycles; difficult rework, with components and pads easily damaged during disassembly, increasing after-sales costs.

II. Targeted Solutions (Based on Our Conformal Coatings and Flux Products)

Relying on our technological accumulation from long-term development in the electronic chemical industry, we have addressed the above pain points. Focusing on "adaptation to industrial control scenarios, simplified application processes, and improved protection and soldering reliability", we have integrated the advantages of our conformal coating and flux products to form a full-process practical solution.

(I) Conformal Coating Protection Solutions

Our series of conformal coating products (including polyurethane, rubber system, silicone, UV cure and other types) are specially developed for harsh industrial control environments. Combined with a standardized application process, they thoroughly solve the problem of protection failure:

1. Scenario-adapted product selection: According to the operating environment of industrial control equipment, we provide corresponding types of conformal coatings to meet the needs of different working conditions. For general scenarios, we prioritize fast-drying and easy-rework properties; for harsh environments, we focus on corrosion resistance and temperature resistance. All products comply with environmental protection standards to support green production.

2. Solving coating application pain points: Adopting high-quality film-forming technology, the coating fluid features excellent fluidity, can penetrate into component gaps and other hard-to-reach areas, forming a uniform and dense protective film with no coating dead zones. It is highly compatible with our flux products and can be applied directly after soldering without complex cleaning, simplifying the construction process.

3. Optimized curing and rework: The coating cures rapidly at room or low temperature with strong adhesion after curing, resisting high-low temperature cycles and vibration shocks to prevent coating cracking. Acrylic conformal coatings can be easily removed with special solvents, reducing rework difficulty and cost to meet later maintenance needs.

4. Enhanced process control: We provide supporting standardized construction guidance with clear full-process operation specifications, and recommend matching professional coating and testing equipment to ensure uniform coating and traceable quality, avoiding protection failure caused by improper application.

(II) Soldering Solutions with Flux

Our company’s flux series (no-clean, lead-free, halogen-free) features optimized formulations for the soldering requirements of industrial control circuit boards, solving soldering defects at the source and improving soldering reliability:

1. Eliminating soldering defects: Adopting no-clean flux with suitable activity level, it delivers excellent wettability, effectively removes oxide layers, improves solder fluidity, and significantly reduces the probability of cold solder joints, missing solder and bridging. With extremely low post-soldering residue, it requires no extra cleaning and avoids corrosion and short-circuit issues.

2. Adapting to industrial control processes: Supports lead-free soldering, is compatible with various industrial control PCB materials, and allows optimization of soldering temperature profiles based on board characteristics. Paired with special tools, it reduces solder joint quality problems; dedicated processes can be adopted for high-density layouts to enhance soldering quality.

3. Balancing environmental protection and safety: Halogen-free, low-odor and non-flammable, the products meet environmental and safe production requirements in the industrial control sector. Precise coating volume control avoids various soldering risks caused by excessive application.

4. Reducing control costs: The flux features stable viscosity with no frequent need for thinner replenishment. We provide supporting process parameter guidance to help enterprises establish standardized soldering processes, reduce defect rates caused by process instability, and shorten rework time.

III. Core Advantages of the Solution

1. Strong compatibility: Our conformal coatings and fluxes are synergistically matched, requiring no additional process adjustments. They can directly connect the soldering and coating processes, simplifying workflows and improving efficiency.

2. High reliability: The products have passed rigorous industrial environment tests, which can significantly extend the service life of circuit boards and reduce equipment failure rates.

3. Excellent cost-effectiveness: Simplified construction processes, lower rework rates and operation & maintenance costs achieve low-cost, high-protection and high-reliability performance.

4. Customized services: Our company independently develops core raw material resins. We can customize exclusive products and construction solutions according to customers’ specific application scenarios and PCB design features.

IV. Conclusion

The conformal coating protection and soldering quality of circuit boards in the industrial control sector are core guarantees for stable equipment operation. With professional products, standardized processes and customized services, our company accurately solves industry pain points, helps industrial control enterprises improve product reliability and reduce operation & maintenance costs, and safeguards the safe operation of equipment in various industrial control scenarios.