Product Overview
Capacitor Insulation Paper is a high-performance insulating material developed for cover isolation, closure sealing and sleeve insulation of aluminum electrolytic capacitors. It delivers reliable insulating protection between capacitor cover plates and terminals, at aluminum-can sealing positions and inside outer insulation sleeves. Featuring high dielectric strength, excellent thermal stability and great electrolyte-resistant performance, the material reduces leakage risks and improves sealing reliability, enabling long-term stable capacitor operation under complex temperature-humidity working conditions.
Product Parameter
| Parameter Item | Specification |
| Product Type | Capacitor Insulation Paper |
| Product Categories | Cover Insulation Gasket, Sealing Liner Paper, Sleeve Insulation Paper |
| Thickness | 40-120 μm, customizable |
| Breakdown Voltage | ≥500 V |
| Insulation Resistance | High insulation level |
| Temperature Resistance | ≥125 ℃ |
| Oil Absorption | Moderate and controllable according to application requirements |
After-Sales Services
1. Quality guarantee against manufacturing defects under proper storage & processing conditions.
2. Round-the-clock technical support via WhatsApp, Email and other mainstream communication channels.
3. Timely response for quality feedback raised from your production site, with root-cause analysis and improvement suggestions.
4. Provide relevant batch test reports, third-party inspection documents and product approval files upon request.
5. Offer professional technical consultation for product selection, processing parameters and custom-made projects.
Application
| Application Field | Specific Use | Applicable Environment |
| Photovoltaic & Energy Storage | Insulation for DC-Link and energy-storage aluminum electrolytic capacitors | Outdoor PV stations, container-type energy-storage cabinets, high-temperature working conditions |
| High-Power Power Conversion | Insulation for DC filter capacitors inside converters and SVG devices | Wind power converters, motor drive equipment, heavy-duty industrial sites |
| New Energy Vehicle Electronics | Insulation for aluminum electrolytic capacitors used in on-board power units | Vehicle on-board charging systems, high-vibration and high-temperature automotive environments |
Packing&Shipping
Goods are orderly stacked on plastic pallets for forklift access, optimizing overall efficiency for warehouse storage and cargo loading operations. All carton-packed goods are securely wrapped with stretch film and reinforced by adhesive tapes and binding straps, offering comprehensive protection against dust, moisture and impact damage throughout the whole logistics cycle.
Each batch is marked with barcodes and batch-specific labels to clearly indicate product specifications and quantities, enabling full traceability for all stock-in and stock-out activities. Pallet-based packaging is well-suited for container transportation, securing product integrity for large-volume order deliveries.
FAQ
Q1: What is the maximum customizable thickness for this capacitor insulation paper?
A1: The available thickness range is 40 120 μm. Custom thickness within this scope can be offered according to your technical drawings and test requirements.
Q2: What is the continuous operating temperature of the insulation paper?
A2: Its temperature resistance reaches ≥125℃. Please avoid long term service beyond the rated temperature to maintain stable insulation performance.
Q3: Can the material resist the erosion of capacitor electrolyte?
A3: Yes. It is specially treated for electrolyte resistance, which effectively inhibits electrolyte penetration and climbing, suitable for aluminum electrolytic capacitor sealing structures.
Q4: Can you provide test reports for each batch?
A4: Batch-wise test reports are available upon request. Third-party inspection documents can also be applied for according to customer needs.
