Al Metallized Polypropylene Films for Capacitors
Home / Products / Metallized Film for Capacitors / Al Metallized Polypropylene Films for Capacitors
  • Product Details
  • FAQ
  • Contact Us

◆ Product Advantages
- Pure Aluminum Metallized Coating with Stable and Reliable Electrical Performance:
  Single aluminum (Al) metallized polypropylene film vapor-deposits a pure aluminum
  metal layer on one side of high-purity BOPP base film. The aluminum coating has high
  electrical conductivity and good chemical stability, maintaining stable electrical
  performance across a wide range of voltages and frequencies — a classic foundational
  material for manufacturing various metallized film capacitors
- Excellent Self-Healing Performance: Pure aluminum coating can self-evaporate the fault
  point through thermal vaporization upon localized dielectric breakdown, restoring
  insulation performance and endowing capacitors with self-healing characteristics,
  effectively preventing local defects from expanding into catastrophic failures and
  improving overall capacitor reliability and service life
- BOPP Base Film with Outstanding Dielectric Performance: Biaxially oriented
  polypropylene (BOPP) base film features excellent dielectric constant (approximately
  2.2), extremely low dielectric dissipation factor (tanδ typically below 0.0003), high
  insulation resistance, and high breakdown field strength, ensuring low-loss and high-
  efficiency capacitor operation
- Wide Operating Temperature Range: BOPP base film combined with aluminum coating
  maintains stable electrical film performance across a wide temperature range from
  -40°C to +105°C, meeting temperature specification requirements of industrial-grade
  and home appliance-grade capacitors
- Precisely Controlled Coating Sheet Resistance: Mature aluminum coating process
  precisely controls sheet resistance in the range of 2Ω/□ to 20Ω/□, meeting specific
  design requirements of different capacitors for coating resistance values — low sheet
  resistance for high-current applications, high sheet resistance for enhanced self-
  healing effect

◆ Key Selling Points
- High Cost-Effectiveness for Large-Scale Production: Compared to Al-Zn composite
  coating film, single aluminum film manufacturing processes are mature and stable with
  relatively lower raw material costs, particularly suitable for cost-sensitive large-
  volume home appliance capacitor production
- Extremely Wide Application Range Covering Mainstream Capacitor Categories: Single
  aluminum metallized polypropylene film is the core raw material for manufacturing
  various mainstream film capacitors including CBB60, CBB61, CBB65, and CBB21, with
  large market demand and strong universality
- Excellent Batch Consistency for Stable Factory Continuous Production: Aluminum vapor
  deposition process parameters are easy to control with good inter-batch consistency of
  coating thickness, sheet resistance, and film thickness, suitable for high-speed
  continuous production lines at capacitor manufacturers
- Multiple Base Film Thickness and Width Specifications: Base film thickness from 2.5μm
  to 20μm with width customizable to customer requirements, meeting material
  requirements of different capacitor winding machines and design parameters

◆ Primary Applications
- CBB60 series washing machine and pump motor capacitors
- CBB61 series fan and ventilation fan capacitors
- CBB65 series air conditioner, refrigerator, and lighting capacitors
- CBB21 series low-voltage DC filter and signal coupling capacitors
- Power compensation and power factor correction (PFC) capacitors


Thickness of base film

Thickness W/MV (μm) 4 5 6 7 8 9 10 12 15

Tolerance (%)
±8 ±7

Note: Other thicknesses are available upon request.

Haven’t Found The Products You Want?
Contact Us
With 30 years of dedicated research and manufacturing of thin-film capacitors, we welcome you to contact us to obtain product information, technical support and customized solutions.
Get A Quote
About Us
Anhui Juan Kuang Electric Co., Ltd.

Anhui Juan Kuang Electric Co., Ltd. Against the backdrop of the rapid development of the electronic information and new‑energy industries, film capacitors serve as core basic components. Their performance directly determines the reliability and energy‑efficiency level of downstream end‑products. In this sector, Anhui JuanKuang Electric Co., Ltd. has built up expertise over more than 30 years. Through professionalism and innovation, it has established itself as a capable player in the film‑capacitor industry.

Established in 1995, Anhui JuanKuang Electric Co., Ltd. specializes in the R&D and manufacturing of a full range of film capacitors. For over 30 years, the company has stayed focused on its core business. It avoids blind expansion and rejects careless production. Embracing the philosophy of “manufacturing quality capacitors with craftsmanship” across every production process, it has become a model of steady growth within the industry.

Certificate Of Honor
  • TUV-CBB65
  • UL
  • UL-For-Compressor
  • VDE
  • VDE
  • Anhui Yuanguang Electric Appliance‑Environmental Management System Certificate
  • GB/T 4787.1‑2021 – Voltage‑Sharing Capacitors for High‑Voltage Alternating‑Current Circuit‑Breakers
  • GB/T 17702‑2021‑Power Electronic Capacitors
  • GB/T 28543‑2021‑Noise Measurement Method on Power Capacitors
  • GB/T 11026.8‑2025‑Electrical insulating materials—Thermal endurance properties—Part 8: Determination of thermal endurance indices (TI and RTI) of an insulating material using the fixed time frame method
  • NB/T 10451‑2020‑Insulating liquids‑Unused polyisobutene
  • NB/T 10452‑2020‑Insulating liquids‑Epoxidized soybean oil for metallized film capacitors
News