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Optimized for high refractive index stability, dielectric isolation, active optical coupling, and total barrier protection in harsh liquid-cooled AI data centers.
As hyperscale data centers accelerate the migration toward 800G, 1.6T, and Co-Packaged Optics (CPO), structural bonding and barrier materials face unprecedented environmental stresses.
Next-gen AI servers employ single-phase and two-phase dielectric immersion fluids (PAO, synthetic hydrocarbons, and fluorinated liquids). Traditional sealants swell and lose adhesion; our modified fluorosilicone matrix guarantees zero volume expansion and zero plasticizer leaching.
Optical coupling efficiency between laser diodes (EML/VCSEL), silicon photonics waveguides, and fiber arrays demands nanometer-level alignment stability. Ultra-low linear shrinkage (<0.1%) prevents beam deviation under thermal cycling from -40°C to +125°C.
Volatile siloxanes can condense onto laser facets, micro-lenses, and photodiode windows, causing catastrophic optical power attenuation. Our formulations comply with NASA SP-R-0022A and ASTM E595 standards (CVCM < 0.05%, TML < 0.1%).
Modern optoelectronic transceivers are transitioning from discrete hermetic metallic TO-can packaging toward non-hermetic, highly integrated micro-optical architectures. In pluggable transceivers (QSFP-DD, OSFP) and Co-Packaged Optics (CPO), optical paths operate alongside high-power DSP chips dissipating up to 30W per module.
Under these thermal thresholds, conventional epoxy or standard RTV silicone sealants either suffer from brittle cracking under thermal shock or release condensable low-molecular-weight D3-D10 cyclic siloxanes. When exposed to immersion cooling oils, standard elastomers absorb hydrocarbon chains, swelling by up to 40% and catastrophic optical axis misalignment.
Songxi Technology's oil-resistant optical coupling silicone addresses these engineering bottlenecks by crosslinking fluorinated alkyl side groups into the siloxane backbone. This creates an impermeable steric barrier against synthetic dielectric coolants while preserving the elastic modulus required to buffer CTE mismatches between InP, Silicon, Kovar, and ceramic substrates.
| Performance Metric | Standard Silicone | Songxi Oil-Resistant Optical Grade |
|---|---|---|
| PAO Oil Swelling (1000h @ 85°C) | > 25.0% Volume | < 1.2% Volume Change |
| Total Mass Loss (ASTM E595 TML) | > 1.50% | < 0.08% |
| Collected Volatiles (CVCM) | > 0.30% | < 0.02% |
| Linear Curing Shrinkage | 1.5% - 3.0% | < 0.15% (Sub-micron safe) |
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.
Delivering advanced material formulations tailored to challenging electronics and optoelectronic environments.
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.
Explore our full line of industrial-grade potting gels, optical adhesives, and moisture/oil resistant sealants engineered for demanding optoelectronic and electronic assemblies.
Songxi adheres to integrity and quality throughout material selection, production, and delivery, turning reliability into a competitive advantage and earning long-term customer trust through professional service and continuous improvement across global markets.