Product Overview
Our Electronic Potting for Aluminum Electrolytics is a professional Silicone Encapsulant developed specifically for the encapsulation, sealing and protection of aluminum electrolytic capacitors. As a leading manufacturer of electronic Potting Compound and silicone raw materials, we optimize the formula for the high reliability and heat dissipation requirements of aluminum electrolytics, focusing on insulation, heat resistance, adhesion to aluminum and stability. Compared with ordinary potting compounds, it has better thermal stability, stronger adhesion to aluminum shells and PCB, and can absorb internal stress caused by high-temperature cycles, effectively protecting aluminum electrolytic capacitor cores and pins, reducing failure rates and extending service life for procurement partners.
Key Features & Advantages
- Superior Insulation & Safety: Excellent dielectric properties, strong insulation performance, effectively isolating aluminum electrolytic capacitors from external electrical interference, preventing short circuits and leakage, avoiding electrolyte leakage risks, ensuring the stable operation of electronic components, meeting the strict insulation requirements of aluminum electrolytics.
- Wide Temperature Adaptability: High temperature resistance (-60℃ to 220℃) and excellent low-temperature performance, can operate stably in extreme temperature environments, absorb internal stress caused by high-temperature cycles, and protect aluminum electrolytic capacitor cores, pins and electrolytes from damage.
- Strong Adhesion & Sealing: Excellent adhesion to aluminum electrolytic capacitor shells, PCB, aluminum, copper, stainless steel, PC and PMMA, forming a tight seal, effectively achieving waterproof, moisture-proof, dust-proof and anti-corrosion effects, preventing electrolyte leakage, extending the service life of aluminum electrolytics.
- Easy Operation & Fast Curing: Two-component liquid design, simple mixing ratio, easy to stir evenly; supports room temperature or heat curing, full curing in 24 hours, optional vacuum degassing, improving production efficiency for batch production of aluminum electrolytic capacitors.
- High Stability & Environmental Protection: Low volatility, high strength, no harmful substances, complying with EU RoHS and international environmental standards; no stratification or performance degradation after long-term storage, compatible with aluminum electrolytic electrolyte, ensuring consistent product quality.
How to Use (Step-by-Step Guide)
- Pre-Mixing Preparation: Fully stir Component A to mix the settled filler evenly, and shake Component B thoroughly to ensure uniform consistency, avoiding affecting the curing effect and adhesion to aluminum electrolytic shells.
- Mixing: Mix Component A and Component B according to the specified weight ratio (customizable), stir slowly and evenly to avoid generating air bubbles, which will affect the insulation and sealing performance, and prevent electrolyte leakage.
- Degassing (Optional): Put the mixed potting compound into a vacuum container, degas at 0.01MPa for 3 minutes to completely eliminate air bubbles, then it can be used for pouring.
- Curing: Pour the degassed potting compound into the aluminum electrolytic capacitor packaging mold, place it at room temperature for curing or heat to accelerate curing; after basic curing, proceed to the next process, and full curing takes 24 hours. Note: Environment temperature and humidity significantly affect curing speed.
Application Scenarios
This specialized electronic potting compound is mainly used for the encapsulation, sealing, filling and pressure protection of aluminum electrolytic capacitors. It is widely applied in high-precision electronic devices, including consumer electronics, automotive electronics, industrial control equipment, power supply devices, home appliances and communication devices. It provides reliable insulation, heat dissipation and protection for aluminum electrolytics, reducing failure rates caused by moisture, dust, corrosion and electrolyte leakage, improving product stability, and helping procurement partners reduce production costs and enhance product competitiveness.
Technical Specifications
Type: Addition-Curing Silicone; Mix Ratio (A:B): Customizable (weight ratio); Appearance: Liquid (both components); Viscosity: Customizable (suitable for aluminum electrolytic encapsulation); Hardness (Shore A): Customizable; Operating Temperature: -60℃ to 220℃; Dielectric Strength: ≥25 kV/mm; Volume Resistivity: ≥1.0×10¹⁶ Ω·cm; Adhesion: Excellent (aluminum, PCB, metal); Volatility: Minimal; Curing Time: 24 hours (room temperature, heat-accelerated optional); Degassing Condition: 0.01MPa for 3 minutes; Compliance: EU RoHS; Shelf Life: 12 months (sealed storage); Customizable models available.
Certifications & Compliance
Our Electronic Potting for Aluminum Electrolytics complies with international electronic, safety and environmental protection standards: ISO 9001 (strict quality control), CE Certification, EU RoHS Directive, meeting global aluminum electrolytic capacitor production requirements, trusted by global electronic component manufacturers and procurement partners.
Customization Options
We provide aluminum electrolytic-specific tailored solutions: custom formulations (adjust viscosity, hardness, curing speed, insulation and thermal conductivity), adhesion optimization for aluminum capacitor shells, and flexible parameter adjustment, meeting small-batch customization and large-scale production needs of different electronic industries, adapting to various aluminum electrolytic capacitor specifications.
Production Process & Quality Control
We implement a 5-step strict quality control process: high-purity silicone raw materials screening, precision automated formulation mixing, performance testing (insulation, adhesion to aluminum, temperature resistance), curing verification, and sealed packaging. Our monthly capacity exceeds 500 tons, supporting stable supply for global orders. The product is non-hazardous, transportable as general chemicals, and has a 12-month shelf life when sealed and stored properly.
FAQ
Q: Is it suitable for all types of aluminum electrolytic capacitors?
A: Yes, it can be customized to match different aluminum electrolytic specifications, with good compatibility and adhesion to aluminum shells.
Q: What’s the mixing ratio?
A: Customizable weight ratio, easy to operate and adjust.
Q: Will it damage aluminum electrolytic cores or cause electrolyte leakage?
A: No, it has low shrinkage and no exotherm during curing, compatible with electrolytes, avoiding damage and leakage.
Q: What’s the curing time?
A: 24 hours at room temperature, heat-accelerated optional.
Q: Shelf life?
A: 12 months when sealed and stored properly, stratification does not affect performance after stirring.
Shenzhen Hong Ye Jie Technology Co., Ltd
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