Al-Zn Metallized Polypropylene Films for Capacitors

◆ Product Advantages
- Al-Zn Composite Coating with Outstanding Self-Healing Performance: Zinc-aluminum
  (Al-Zn) composite metallized polypropylene film uses dual-metal coating technology
  simultaneously vapor-depositing zinc and aluminum on a polypropylene (PP) base film.
  Compared to a single aluminum coating, the introduction of zinc significantly enhances
  the film's self-healing activity — when localized insulation breakdown occurs, zinc's
  low melting point causes the metal layer around the breakdown point to vaporize and
  clear rapidly, resulting in faster self-healing, a smaller self-healing area, and more
  complete insulation recovery after healing, greatly improving capacitor reliability and
  service life
- High Safety Margin with Gentle Failure Mode: The self-healing characteristics of Al-Zn
  composite coating allow capacitors to maintain basic working capability after multiple
  self-healing events under over-voltage stress (gradual capacitance decline rather than
  sudden failure), with gentle and predictable failure modes and higher safety, meeting
  the stringent requirements for capacitor failure modes in modern power electronics and
  home appliances
- Polypropylene Base Film with Excellent Insulation and Electrical Performance:
  Biaxially oriented polypropylene (BOPP) base film features low dielectric constant,
  extremely low dielectric loss (very low tanδ), high voltage withstand strength, and
  wide operating temperature range (-40°C to +105°C), providing excellent long-term
  electrical stability for capacitors
- Precisely Controllable Coating Sheet Resistance: Al-Zn dual-metal coating process
  precisely adjusts coating sheet resistance over a wide range — from low sheet
  resistance (high-current applications) to high sheet resistance (enhanced self-healing
  strength) — with custom production according to customer specifications, meeting
  specific requirements for different application scenarios
- Built-In Safety Margin Design: Film edges can be designed with different widths of
  safety margins (unmetallized areas) as required, effectively preventing edge discharge
  breakdown and improving capacitor end insulation reliability

◆ Key Selling Points
- Significantly Improved Overall Capacitor Performance: Capacitors manufactured using
  Al-Zn composite metallized film can achieve higher capacitance and longer service life
  at the same dimensions, or smaller size at the same performance requirements
- Wide Applicability to Multiple Capacitor Products: Suitable for various mainstream
  capacitor products including AC motor capacitors (CBB60, CBB61, CBB65), DC filter
  capacitors, power factor compensation capacitors, and EMI suppression capacitors
- Stable Raw Material Quality with High Batch Consistency: Using high-purity BOPP base
  film and high-purity metal targets with good coating thickness and sheet resistance
  uniformity, minimal inter-batch variation, suitable for large-volume continuous
  production by capacitor manufacturers
- Multiple Thickness Specifications Available: Base film thickness available from 2μm to
  over 20μm to meet different voltage rating and capacitance design requirements

◆ Primary Applications
- AC motor starting and running capacitors (CBB60/CBB61/CBB65 series)
- Low-voltage power compensation and PFC capacitors
- Home appliance capacitors (air conditioners, washing machines, refrigerators, fans)
- DC filter and DC-Link capacitors
- EMI/RFI electromagnetic interference suppression capacitors

Q: Which markets does the product mainly export to?

Our products are sold worldwide to 30+ countries and regions, including the United States, Germany, Japan, Spain, Italy, the United Kingdom, South Korea, Australia and Canada, etc.

Q: How to arrange the transportation of goods?

The main mode of transportation is by sea, which is convenient and efficient. If urgent delivery is required, we can also arrange air transportation through the Ningbo or Shanghai airports.

Q: What are the payment methods available?

During the quotation process, the trade terms (such as FOB, CIF, etc.) will be confirmed. For mass production, a 30% advance payment is usually required, and the remaining amount will be paid upon presentation of the copy of the bill of lading. The main payment method accepted is T/T, and L/C can also be negotiated for use.

Q: How to ensure product quality?

We implement full-process quality management. After each process, there is an inspection. The finished products are 100% subject to final inspection in accordance with customer requirements and international standards.

Q: What is the size of the company and its personnel structure?

The company currently has over 300 employees, among whom there are about 10 professional technicians.

Q: Do you support customized production?

Customized production is our core business. We can develop and manufacture according to the drawings or samples you provide.

Q: Are you a factory or a trading company?

We are a direct manufacturer with independent production capabilities. We also have an international sales department to provide a complete service from production to export.

Q: How soon can I receive a reply after making an inquiry?

We attach great importance to every inquiry. We will reply within 12 hours after receiving the quotation.