Product Overview
Our Electronic Potting for Toroidal Cores is a professional Silicone Encapsulant developed specifically for the encapsulation, sealing and protection of toroidal cores. As a leading manufacturer of electronic Potting Compound and silicone raw materials, we optimize the formula for the magnetic shielding, high insulation and anti-deformation requirements of toroidal cores, focusing on uniform encapsulation, adhesion to toroidal cores/windings and low shrinkage. Compared with ordinary potting compounds, it has better magnetic shielding performance, stronger adhesion to ferrite/iron toroidal cores and copper windings, and can absorb internal stress caused by high-temperature operation and vibration, effectively protecting toroidal cores and pins, reducing failure rates and extending service life for procurement partners.
Key Features & Advantages
- Superior Insulation & Magnetic Shielding: Excellent dielectric properties, ultra-strong insulation performance and effective magnetic shielding, effectively isolating toroidal cores and windings from external electrical and magnetic interference, preventing short circuits and core damage, ensuring stable magnetic performance and reliable operation, meeting the strict insulation requirements of toroidal cores.
- Wide Temperature Adaptability & Heat Dissipation: High temperature resistance (-60℃ to 220℃) and good thermal conductivity, can quickly dissipate heat generated by toroidal core operation, operate stably in extreme temperature environments, absorb internal stress caused by high-temperature cycles, and protect toroidal cores and windings from damage or deformation.
- Strong Adhesion & Sealing: Excellent adhesion to toroidal cores (ferrite, iron), copper windings, PCB, aluminum, stainless steel, PC and PMMA, forming a tight and uniform seal, effectively achieving waterproof, moisture-proof, dust-proof and anti-corrosion effects, avoiding core oxidation and magnetic performance degradation caused by moisture or dust.
- Anti-Deformation & Easy Operation: Two-component liquid design, low curing shrinkage, no deformation to toroidal core structures after curing; simple mixing ratio, easy to stir evenly, suitable for uniform pouring around toroidal cores; supports room temperature or heat curing, full curing in 24 hours, optional vacuum degassing, improving production efficiency for batch production of toroidal cores.
- 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 toroidal core materials, ensuring consistent product quality and stable magnetic performance.
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 toroidal cores and coil windings.
- 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, heat dissipation and sealing performance, and prevent damage to delicate toroidal core structures.
- 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 precise and uniform pouring around toroidal cores.
- Curing: Pour the degassed potting compound around the toroidal core 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 toroidal cores. It is widely applied in high-precision electronic devices, including power supplies, transformers, inductors, automotive electronics, industrial control devices and communication equipment. It provides reliable insulation, heat dissipation and anti-vibration protection for toroidal cores, reducing failure rates caused by moisture, dust, corrosion and vibration, 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 toroidal core encapsulation); Hardness (Shore A): Customizable; Operating Temperature: -60℃ to 220℃; Dielectric Strength: ≥25 kV/mm; Volume Resistivity: ≥1.0×10¹⁶ Ω·cm; Adhesion: Excellent (toroidal cores, copper windings, PCB); 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 Toroidal Cores complies with international electronic, safety and environmental protection standards: ISO 9001 (strict quality control), CE Certification, EU RoHS Directive, meeting global toroidal core production requirements, trusted by global electronic component manufacturers and procurement partners.
Customization Options
We provide toroidal core-specific tailored solutions: custom formulations (adjust viscosity, hardness, curing speed, insulation and magnetic shielding), adhesion optimization for toroidal cores and coil windings, and flexible parameter adjustment, meeting small-batch customization and large-scale production needs of different electronic industries, adapting to various toroidal core sizes and 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 toroidal cores, 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 toroidal cores?
A: Yes, it can be customized to match different toroidal core sizes and materials (ferrite, iron), with good compatibility and adhesion to cores and windings.
Q: What’s the mixing ratio?
A: Customizable weight ratio, easy to operate and adjust.
Q: Will it affect the magnetic performance of toroidal cores?
A: No, it has low magnetic interference and good magnetic shielding, ensuring stable magnetic performance.
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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