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Specialized silicone compounds offering superior chemical resistance, dielectric insulation, and thermal stability for demanding PCB environments.
Addressing harsh real-world chemical exposure mechanisms in compact, high-power density consumer devices.
Modern smart wearables, hearables, and handheld IoT devices are continuously exposed to human sebum, hand lotions, fatty acids, and aerosolized cooking oils. Standard dimethyl silicones swell upon contact with non-polar hydrocarbons, triggering delamination, dendritic growth, and parasitic leakage currents on high-density interconnect (HDI) PCBA substrates.
By integrating trifluoropropyl side-chains onto the polysiloxane polymer backbone, our fluorosilicone hybrid coatings achieve exceptional surface energy minimization. This chemical architecture repels low-surface-tension oils, motor fuels, and organic solvents while maintaining thermal flexibility from -50°C to +200°C.
Formulated to satisfy rigorous international reliability standards including IPC-CC-830C, MIL-I-46058C, and UL 94 V-0 flame retardancy, our oil-resistant silicone systems ensure long-term dielectric breakdown resistance (>18 kV/mm) without imparting mechanical stress onto delicate 0201 passives or fine-pitch BGA packages.
Conformal coatings in consumer electronics serve as the frontline defense against environmental degradation. While traditional acrylics, polyurethanes, and epoxies each offer distinct characteristics, they often falter under coupled thermal-mechanical-chemical fatigue.
Acrylics dissolve readily when exposed to organic solvents and aromatic oils. Rigid epoxies induce severe CTE mismatch stresses during rapid thermal cycling, leading to micro-cracking at solder joints. Conventional polyurethanes exhibit moisture reversion under elevated humidity.
Songxi's oil-resistant silicone chemistry resolves these trade-offs through an optimized siloxane network that maintains high elasticity (elongation >120%), ultra-low modulus, and an unyielding molecular barrier against mineral oils, cooking greases, and skin lipids.
| Properties | Oil Resistant Silicone | Standard Silicone | Acrylic Resins | Polyurethane (PU) |
|---|---|---|---|---|
| Hydrocarbon & Oil Resistance | Exceptional (Fluorinated) | Moderate (Prone to swell) | Poor (Dissolves) | Good |
| Operating Temperature | -50°C to +200°C | -50°C to +200°C | -40°C to +125°C | -40°C to +130°C |
| Dielectric Strength (kV/mm) | > 18.0 | > 16.0 | > 15.0 | > 15.0 |
| Stress on SMT Solder Joints | Ultra-Low Modulus | Ultra-Low Modulus | Moderate | High (Rigid) |
| Moisture & Corrosion Barrier | Superior (IPX8) | Excellent | Fair | Good |
Precision-engineered protection tailored to modern miniaturized architectures and severe operating profiles.
Direct contact with human skin subjects wearables and hearable PCBAs to a corrosive mixture of sweat, sebum, cosmetics, and earwax lipids. Oil-resistant silicone forms a thin, conformal barrier over sensor modules and microphone ports, preventing conductive path bridging and corrosion without dampening acoustic sensitivity.
Electronic control boards in smart ovens, range hoods, induction cooktops, and blenders operate in hot, aerosolized grease and steam environments. Our fluorinated silicone conformal coating resists long-term hydrocarbon absorption, eliminating short circuits caused by carbonized grease films.
High-power mobile gaming hardware suffers from localized thermal hotspots coupled with continuous finger oils and sweat ingress. Songxi's coating delivers dual-cure rapid turnaround, ensuring complete coverage underneath high-density BGA packages while resisting thermal degradation.
Outdoor imaging devices and quadcopters encounter lubricating oils from brushless motor bearings, exhaust residues, and humid rain. The elastomeric matrix cushions internal flight controller PCBAs against high-frequency vibration while repelling mechanical lubricants.
Gallium Nitride (GaN) and Silicon Carbide (SiC) power adapters generate elevated thermal flux in micro-form factors. Oil-resistant silicone potting and conformal coatings offer superior thermal dissipation, UL 94 V-0 flame quenching, and protection from potting oil seepage.
In-cabin touch displays, wireless charging pads, and HUD electronic modules face dashboard plasticizer outgassing, vinyl cleaning chemicals, and drink spills. Our specialized coatings ensure optical clarity, stable dielectric values, and zero signal attenuation.
Songxi Technology is a high-tech enterprise specializing in the R&D, production, and sales of electronic adhesives. Based on silicone, polyurethane, acrylic, and epoxy systems, we provide reliable bonding, sealing, and protection solutions for power electronics, optoelectronics, new energy, automotive, and aerospace industries.
We are committed to becoming a trusted provider of functional polymer material solutions for the electronics industry. Through continuous innovation and application development, we promote the localization of high-end electronic adhesives and help intelligent devices achieve greater stability and durability.
Full-spectrum polymer synthesis, formulation tuning, and precision potting solutions for global high-tech markets.
Songxi's business covers three functional areas: adhesive & sealing, potting & protection, and thermal interface materials. Our product portfolio includes PCBA fixing adhesives, UV adhesives, sealants, thermal conductive potting compounds, thermal greases, pads, two-component thermal gels, EMI shielding sealants, and reactive hot melt adhesives.
Our products serve power batteries, photovoltaic modules, drones, automotive electronics, 5G communications, and LED lighting. We provide both standard products and customized solutions for applications such as BMS conformal coating, IGBT thermal filling, and power battery structural bonding, supported by extensive technical experience and application expertise.
Led by a Ph.D. in Polymer Materials from Sichuan University, Songxi's R&D team has nearly twenty years of silicone application experience and has participated in over 100 product development projects. We maintain cooperation with research institutions including Chenguang Chemical Research Institute, Sichuan University, and Beijing Institute of Technology.
Certified with ISO9001, Songxi operates a comprehensive management system covering procurement, production, inspection, and after-sales service. Our products comply with RoHS and REACH requirements, with SGS verification and UL 94 V-0 flame retardant certification, ensuring consistent quality and reliable delivery.
Ensuring uniform film thickness, pinhole-free coverage, and zero keep-out zone migration across high-speed SMT assembly lines.
Engineered with rheology modifiers for clean atomized spray deposition. Songxi's formulations achieve a crisp edge-definition with zero overspray, protecting delicate connector interfaces and optical sensors without requiring labor-intensive manual masking tape.
Primary UV initiation enables tack-free surface curing in less than 30 seconds under 365/395 nm LED irradiation, facilitating instant inline handling. Secondary ambient moisture curing penetrates shaded shadow zones beneath BGAs, QFNs, and tall electrolytic capacitors.
Equipped with a vivid optical brightening agent under 375 nm blacklight inspection. Enables automated optical inspection (AOI) systems to immediately identify film thickness deviations, voids, bridging, or edge-coverage defects in high-volume production lines.
Precision manufacturing, cleanroom compounding, and high-frequency analytical validation for oil-resistant polymeric coatings.
