Product Overview
Our Electronic Potting Silicone for Solar Inverters, also called encapsulation silicone, electronic silicone or electronic silicone rubber, is a professional low-viscosity two-component room-temperature vulcanizing potting material, a key part of HONG YE SILICONE’s full silicone product matrix. Model HY-9325 is tailored for solar inverters—core equipment of photovoltaic systems, designed to solve inverter pain points: outdoor UV radiation, temperature extremes, rain erosion and circuit insulation risks. It forms a dense protective layer after curing, ensuring long-term stable operation of inverter internal components, far exceeding ordinary Electronic Potting Compound in photovoltaic scene adaptability. Product Features & Advantages
1. Solar inverter-specific outdoor durability: Excellent UV resistance and weather aging resistance, no yellowing or cracking after long-term outdoor exposure, adapting to harsh photovoltaic field environments (high temperature, strong radiation, rain).
2. Superior insulation & safety: Volume resistivity ≥1.0×10¹⁶ Ω·cm, dielectric strength ≥25 kv/mm, effectively preventing high-voltage leakage in solar inverters; UL94-V1 flame retardancy eliminates fire risks, ensuring safe operation of photovoltaic systems.
3. Reliable waterproof & adhesion: Forms a seamless waterproof seal, resisting rain and moisture erosion; excellent adhesion to PC, PP, ABS, PVC and metals, firmly fixing inverter circuit boards and components without peeling.
4. Easy operation & production-friendly: 1:1 weight mixing ratio (easy to measure), low viscosity (500±100 cps) with good fluidity; optional deaeration at 0.08MPa for 3 minutes ensures bubble-free potting, suitable for automated solar inverter production lines.
5. Customizable & cost-saving: Cured hardness (25±2 Shore A), viscosity and operation time (30-120min) can be customized to match inverter sizes; mixed glue is used at one time to avoid waste, reducing procurement and production costs.
Technical Specifications (Model HY-9325)
This product is a two-component potting silicone for solar inverters: Component A and B are both viscous liquids, Component A has a viscosity of 500±100 cps. Mixing ratio is 1:1 by weight, operable time 30-120 minutes, initial curing time 3-5 minutes, full curing time 24 hours (affected by ambient temperature and humidity). After curing, it reaches Shore A hardness 25±2, thermal conductivity ≥0.2 W(m·K), dielectric strength ≥25 kv/mm, dielectric constant 3.0～3.3 (1.2MHz), volume resistivity ≥1.0×10¹⁶ Ω·cm, UL94-V1 flame retardancy. Other models and customizable parameters are available on request.
How to Use
1. Preparation: Fully stir Component A in its container to mix settled black pigment evenly; shake Component B thoroughly to ensure uniform material composition without stratification, critical for inverter outdoor protection performance.
2. Mixing: Blend Component A and B strictly according to 1:1 weight ratio, stir thoroughly to guarantee consistent insulation, waterproof and curing performance for solar inverter components.
3. Deaeration (Optional): After mixing evenly, place the mixed liquid into a vacuum container and deaerate for 3 minutes under 0.08MPa to remove air bubbles, avoiding circuit short circuits caused by bubbles.
4. Potting & Curing: Pour the treated silicone onto solar inverter circuit boards and components; cure at room temperature, proceed to the next process after initial curing, and ensure 24 hours for full curing to achieve optimal outdoor protection.
Application Scenarios
Widely used for potting, insulation, waterproofing and sealing fixing of solar inverter internal components, including inverter circuit boards, power modules and electronic accessories. It is also suitable for outdoor LED display potting and other photovoltaic auxiliary equipment protection, applied in residential, commercial and industrial photovoltaic power generation systems. It protects solar inverters from outdoor harsh environments, reduces failure rates, extends service life, ensures stable power conversion, and lowers after-sales costs for inverter manufacturers.
Certifications and Compliance
HONG YE SILICONE holds ISO9001 quality management system certification, CE and UL certifications. Our Electronic Potting Silicone for Solar Inverters (HY-9325) fully complies with EU ROHS environmental directives, UL94-V1 flame retardant standards and international photovoltaic electronic material standards, meeting the strict requirements of global solar inverter markets for outdoor durability and safety, facilitating smooth import and reliable application in international photovoltaic projects.
Customization Options
We provide professional OEM customization services focused on solar inverter needs. According to customers’ inverter types (on-grid, off-grid) and regional photovoltaic environments (high temperature, strong UV), we can customize key parameters such as cured hardness, viscosity, operable time and curing speed, optimizing outdoor adaptability to meet personalized bulk procurement needs of solar inverter manufacturers.
Production Process
The product undergoes strict multi-link quality control: high-quality outdoor-grade Silicone raw materials inspection → precise formula mixing (optimized for solar inverter UV resistance and insulation) → automated production and filling → pre-production sample outdoor environment testing → full inspection of finished products before shipment. Our professional QC team monitors the whole process, ensuring consistent protection performance of each batch for solar inverters. FAQ
Q1: What packaging specifications are available? A1: Iron drums (5kg, 20kg, 25kg, 200kg) and plastic drums (20kg/barrel), suitable for small-batch inverter testing and large-batch mass production.
Q2: What is the shelf life and storage method? A2: 1-year shelf life; store in sealed containers in a cool, dry place; stratified colloid can be stirred evenly before use, no impact on performance.
Q3: Is it suitable for outdoor solar inverters in high-temperature areas? A3: Yes, it has excellent high-temperature resistance and UV resistance, adapting to high-temperature photovoltaic fields, no performance degradation or cracking.
Q4: Is it a hazardous material for transportation? A4: Non-hazardous, can be transported as general chemicals, complying with international transportation standards for photovoltaic production materials.
Q5: Can it prevent inverter circuit short circuits? A5: Yes, it has high insulation (volume resistivity ≥1.0×10¹⁶ Ω·cm) and bubble-free potting effect, effectively isolating circuits and avoiding short circuits caused by moisture or dust.
Shenzhen Hong Ye Jie Technology Co., Ltd
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