HONG YE SILICONE Electronic Potting Silicone for Space Tethered Systems is a high-performance two-component Addition Curing Silicone, also known as Electronic Potting Compound, Silicone Encapsulant and electronic potting gel, tailored for space tethered systems. Crafted from high-purity Silicone raw materials, it integrates excellent radiation resistance, extreme temperature adaptability, insulation, thermal conductivity and flame retardancy, cures into a solid protective layer after adding curing agent. With strong adhesion to PC, PMMA, PCB and metals (aluminum, copper, stainless steel), it adapts to vacuum space environments, protects core components from cosmic radiation and temperature shocks, ensures stable operation, and has customizable parameters to meet global space equipment procurement demands.
Product Overview
Our Electronic Potting Silicone is specialized for space tethered systems, designed for encapsulation, sealing, filling and pressure protection of their core electronic components, control modules and tether connection units. As a leading manufacturer of liquid silicone and addition curing silicone, we optimize the formula for space environment adaptability, enhancing radiation resistance, vacuum compatibility and anti-thermal shock performance. It outperforms epoxy potting resin in flexibility and space durability, cures at room or elevated temperatures, and ensures reliable protection for space tethered system components, extending service life and reducing space maintenance risks for aerospace manufacturers.
Key Features & Advantages
- Superior Space Environment Adaptability: Excellent cosmic radiation resistance, vacuum compatibility and anti-ozone performance, no volatile substances released in vacuum, adapting to harsh space working conditions of space tethered systems.
- Extreme Temperature Stability: Operates stably from -60℃ to 220℃, withstanding drastic temperature shocks in space (day-night cycle), absorbing internal stress caused by temperature cycles to protect components and welding gold wires.
- High Insulation & Flame Retardancy: Excellent insulation performance (volume resistivity ≥1.0×10¹⁶ Ω·cm), isolating circuits and preventing short circuits in space; flame-retardant design enhances equipment safety in closed space environments.
- Low Volatility & Strong Adhesion: Ultra-low volatile content, no harmful substances released to avoid contaminating space equipment; strong adhesion to PC, PMMA, PCB and various metals, ensuring tight sealing and no peeling in long-term space operation.
- Flexible Curing & Customizability: Addition-curing formula, supporting room-temperature or heated curing (full curing in 24 hours); as a professional Silicone Potting Compound manufacturer, we can customize hardness, viscosity and operation time to match different space tethered system models.
How to Use
- Pre-Mix Preparation: Thoroughly stir Component A to evenly distribute settled fillers, and shake Component B vigorously to ensure uniformity, avoiding stratification which affects adhesion and radiation resistance.
- Precision Mixing: Strictly follow the recommended weight ratio of Component A to B, stirring slowly and evenly for 2-3 minutes to avoid introducing air bubbles that affect sealing performance in vacuum.
- Degassing: After mixing, place the adhesive in a vacuum container at 0.01MPa for 3 minutes to eliminate air bubbles, ensuring full penetration into tiny gaps of space tethered system components.
- Curing: Pour the degassed mixture into component housings; cure at room temperature or heated to accelerate, enter the next process after basic curing, and ensure 24 hours full curing. Note: Environment temperature and humidity have a significant impact on curing speed.
Application Scenarios
This specialized silicone Potting Compound is exclusively for space tethered systems, including low-earth orbit (LEO) tethered satellites, space tether deployment systems, space tether control modules and aerospace electronic components. It is suitable for encapsulation, sealing and filling of their core electronic components, PCB boards and connection units, ensuring stable operation in vacuum, radiation and extreme temperature space environments. It reduces equipment failure rates, lowers space mission risks, and is compatible with Rapid prototyping silicone to accelerate R&D of new space tethered system products. Technical Specifications
Curing Type: Addition-Curing; Mix Ratio (A:B): Customizable (per requirements); Appearance: Liquid (both A and B components); Viscosity: Customizable; Hardness (Shore A): Customizable; Operating Temperature Range: -60℃ to 220℃; Dielectric Strength: ≥25 kV/mm; Volume Resistivity: ≥1.0×10¹⁶ Ω·cm; Curing Time: 24 hours (room temperature), accelerated via heating; Bonding Substrates: PC, PMMA, PCB, CPU, aluminum, copper, stainless steel; Space Adaptability: Radiation-resistant, vacuum-compatible, ozone-resistant. Hardness, viscosity and operation time can be fully customized.
Certifications & Compliance
Our Electronic Potting Silicone complies with international aerospace and industrial standards: ISO 9001 (strict quality control), CE Certification (European safety standards), EU RoHS Directive (hazardous substance-free), meeting global space tethered system safety and environmental protection requirements, gaining recognition from global aerospace procurement partners.
Customization Options
We offer aerospace-grade tailored solutions: custom formulations (adjust hardness, viscosity, radiation resistance and curing speed), space environment adaptability optimization, and flexible packaging options to meet large-scale production and small-batch customization needs of space tethered system manufacturers.
Production Process & Quality Control
We implement a 5-step strict quality control process: raw material purification (high-purity silicone screening), precision formulation (automated mixing for consistent silicone potting compound), performance testing (radiation resistance, insulation, temperature stability, adhesion), curing verification, and sealed packaging. Our facility has a monthly capacity of over 500 tons, supporting large global space tethered system orders.
FAQ
Q: Is it suitable for long-term space tethered system operation?
A: Yes, it has excellent radiation resistance and vacuum compatibility, adapting to long-term space operation without performance degradation. Q: Can it withstand extreme temperature shocks in space?
A: Yes, it operates stably from -60℃ to 220℃, withstanding drastic space temperature fluctuations.
Q: What is the curing time?
A: 24 hours at room temperature, which can be accelerated by heating.
Q: What is the shelf life?
A: 12 months when stored sealed in a cool, dry place.
Q: How to handle stratified colloid?
A: Stir evenly before use, which will not affect product performance.
Shenzhen Hong Ye Jie Technology Co., Ltd
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