DOWSIL™ 3140 RTV Coating: Providing Reliable Protection for Precision Electronics, Meeting Stringent Industry Standards​

Dow Inc. highlighted the exceptional performance of its DOWSIL™ 3140 RTV Coating in the field of precision electronics protection. This one-part, translucent, room-temperature-vulcanizing (RTV) silicone coating not only offers good flowability but also carries key certifications including UL 94 V-1 flame resistance, IPC-CC-830, and military specifications Mil-I-46058C and MIL-A-46146, providing a trusted solution for demanding electronic applications.

As modern electronic devices become increasingly miniaturized and complex, circuit boards and components face challenges such as moisture, corrosion, vibration, thermal stress, and potential flame risks. The DOWSIL™ 3140 RTV Coating is specifically designed to address these challenges. The flexible silicone elastomer layer formed after curing effectively protects sensitive components, enhancing the long-term reliability and service life of the end products.

• Superior Flame Resistance:

  UL 94 V-1 certification provides an added level of fire safety for electronic equipment, particularly suited for power supplies, adapters, automotive electronics, and other safety-critical scenarios.

• Compliance with Industry Standards:

  Meets IPC-CC-830 (for Conformal Coating of Printed Board Assemblies) and military specifications, ensuring suitability for high-reliability sectors like aerospace, defense, and industrial control.

• Excellent Processability:

  Good flow and self-leveling characteristics allow it to easily cover complex board layouts and fine pins/solder joints, forming a uniform, bubble-free protective layer. It is suitable for various application methods including brushing, flowing, or syringe/needle dispensing.

• Facilitates Quality Inspection:

  The inclusion of a UV indicator supports manual or automated ultraviolet light inspection, ensuring coating coverage completeness and consistency, thereby improving the efficiency and reliability of production quality control.

• Eco-Friendly & Efficient:

  One-part, solvent-free formulation cures at room temperature without requiring ovens, simplifying production processes, reducing energy consumption, and aligning with modern green manufacturing principles.

• Printed Circuit Board Protection:

  Provides excellent moisture, corrosion, and ion contamination protection for rigid and flexible circuit boards, enhancing their stability in harsh environments like high humidity and dust.

• Sensitive Component Protection:

  Ideal for shielding corrosion-prone electronic components, improving coverage on precision pins and solder joints, and used for thin-section encapsulation and pin sealing, effectively mitigating mechanical stress and thermal cycle shock.

• High-Reliability Electronic Assembly:

  Its compliance with military and industry standards makes it an essential protective material in critical systems such as aerospace avionics, automotive engine control units, and industrial sensors.

Dow is committed to delivering value to customers through innovative silicone technology. The DOWSIL™ 3140 RTV Coating perfectly embodies this commitment, helping manufacturers enhance product performance and reliability while optimizing production processes and meeting stringent industry regulatory requirements.