HONG YE SILICONE Hydrophobic Silicone Oil (201 Methyl Silicone Oil) is a professional moisture-proof material, a core Silicone raw material engineered for PCB moisture protection. This colorless transparent oily liquid features 10–1000 CS viscosity, 0.930–0.975 density (25℃), 1.390–1.410 refractive index, and flash point 155–300℃. With excellent hydrophobicity, electrical insulation, and wide temperature adaptability (-50～180℃), it effectively protects PCBs from moisture damage, meeting the rigorous demands of global PCB manufacturers and electronic component purchasers.Electronic Encapsulation Adhesive, Silicone Potting Compound, Addition Curing Silicone, RTV 2 Silicone Rubber, Silicone Encapsulant, Potting Compound.
Product Overview
Our Hydrophobic Silicone Oil is a specialized 201 methyl silicone product designed exclusively for PCB moisture protection—critical for PCBs requiring long-term moisture resistance, electrical insulation, and stable performance. As a leading manufacturer of industrial-grade silicone materials, including liquid silicone and Silicone Potting Compound, we optimize this formula to address the unique challenges of PCB moisture protection: strong water repellency, compatibility with PCB substrates, and no damage to sensitive electronic components. Unlike ordinary silicone oils, it boasts excellent hydrophobic performance, low volatility, and physiological inertness, making it ideal for PCB moisture-proof treatment and electronic insulation. Technical Specifications
This Hydrophobic Silicone Oil is a colorless transparent oily liquid with stable physical and chemical properties. At 25℃, its viscosity ranges from 10–1000 CS, density and specific gravity are both 0.930–0.975, and refractive index is 1.390–1.410. It has a flash point (open cup) of 155–300℃, freezing point of -50℃ to -60℃, and can be used long-term at -50～180℃. It is non-toxic, odorless, and has excellent hydrophobicity and electrical insulation. All parameters (viscosity, flash point, density) are customizable to match different PCB moisture protection requirements.
Product Features & Advantages
- Superior Hydrophobicity: Strong water repellency, forming a protective film on PCB surfaces to isolate moisture, prevent short circuits and component corrosion caused by humidity.
- Excellent Electrical Insulation: High insulation performance, ensuring PCB electrical safety, avoiding leakage and short circuits, and protecting sensitive electronic components.
- Wide Temperature Adaptability: Works long-term at -50～180℃, no solidification at low temperatures and no volatilization at high temperatures, adapting to various PCB working environments.
- High Stability & Inertness: Non-toxic, odorless, with good chemical stability and weather resistance, no reaction with PCB materials, ensuring long-term moisture protection effect.
- Low Volatility & Durability: Minimal volatilization, long service life, reducing PCB maintenance frequency and replacement costs for purchasers.
- Multi-Functional & Versatile: Besides PCB moisture protection, it can also be used as insulation oil, lubricating oil, and mold release agent, improving procurement efficiency.
How to Use (Step-by-Step)
- Pre-Use Preparation: Ensure the PCB surface is clean, dry, and free of dust, oil stains, or impurities to ensure the hydrophobic film adheres firmly.
- Oil Application: Apply the Hydrophobic Silicone Oil evenly on the PCB surface by spraying or brushing, ensuring full coverage of the PCB and components without excess oil.
- Drying & Solidification: Place the treated PCB in a well-ventilated area to dry naturally, or heat slightly (≤80℃) to accelerate the formation of the hydrophobic protective film.
- Storage of Unused Oil: Seal the unused silicone oil tightly, store in a ventilated, dry place, and transport as non-dangerous goods.
Application Scenarios
This Hydrophobic Silicone Oil is specifically tailored for PCB moisture protection, widely used in PCB boards, electronic components, and electronic equipment that need moisture resistance. It also serves as insulation oil, lubricating oil, damping oil, defoamer, and mold release agent, applicable to electronic manufacturing, industrial equipment, and other fields. For purchasers, this translates to reduced PCB damage caused by moisture, lower maintenance costs, improved product reliability, and extended service life of electronic equipment in the global PCB and electronic markets.
Customization Options
We offer flexible customization services for PCB moisture protection needs: adjust viscosity (10–1000 CS), flash point, and density to match different PCB sizes and moisture protection requirements; optimize hydrophobicity for high-humidity environments; and provide customized packaging (200kg iron drums or other specifications) to meet large-scale procurement needs. OEM services are supported to meet personalized PCB and electronic equipment moisture protection needs.
Certifications & Compliance
Our Hydrophobic Silicone Oil adheres to international electronic and silicone industry standards, holding ISO9001 quality certification, CE, and RoHS compliance. It meets strict safety and environmental requirements for PCB manufacturing, with stable batch consistency, non-toxic and eco-friendly, and is widely recognized by global PCB and electronic industry clients.
FAQ
Q: Can this hydrophobic silicone oil be used for high-humidity environment PCB moisture protection?
A: Yes. It has superior hydrophobicity, forming a dense protective film on PCB surfaces, effectively isolating moisture and adapting to high-humidity working environments.
Q: Will it affect the electrical performance of PCBs?
A: No. It has excellent electrical insulation, will not cause short circuits, and does not affect the normal electrical performance of PCBs and electronic components.
Q: What is the packaging specification and transportation standard?
A: It is packaged in 200kg iron drums, classified as non-dangerous goods, and can be transported and stored according to general chemical standards.
Q: Can the viscosity be adjusted for different PCB processing needs?
A: Yes. We can customize the viscosity between 10–1000 CS to match different PCB processing methods (spraying, brushing) and moisture protection requirements.
Shenzhen Hong Ye Jie Technology Co., Ltd
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