Dafu

Struggling to find an engineering plastic film that survives extreme heat while maintaining flawless electrical insulation? Meet DAFU PPO Film—the high-performance solution engineered for the next generation of electronics.

Unlike standard polycarbonate films, our Polyphenylene Oxide (PPO) film​ delivers a rare combination of 182°C heat deflection​ and ultra-low dielectric loss, making it the gold standard for high-frequency communication devices and precision motors.

Why Choose DAFU PPO Film?

Based on our lab-tested technical data, here is why engineers specify DAFU PPO:

Extreme Thermal Stability​

With a Heat Deflection Temperature (HDT) of 182°C​ (tested at 1.82MPa), this film outperforms most standard plastics, ensuring structural integrity in high-temperature processes like soldering and reflow.

Superior Electrical Insulation​

Featuring a Volume Resistivity of 10¹⁶ Ω·cm​ and a low Dielectric Constant of 2.8, it is ideal for high-frequency signal transmission and high-voltage insulation.

Exceptional Mechanical Rigidity​

High tensile modulus (1791 MPa MD / 1551 MPa TD) prevents warping, ensuring dimensional stability during precision die-cutting and assembly.

Near-Zero Moisture Absorption​

At only 0.06%​ water absorption (ASTM D570), it maintains stable electrical and mechanical properties even in humid environments.

Versatile Surface Finishes​

Available in Polished/Polished, Polished/Matte, or Matte/Matte​ textures to suit various lamination, printing, and bonding requirements.

Technical Specifications (TDS)

Note: Data above is based on 0.1mm thickness lab testing. Values may vary by gauge. For reference only.

Target Applications

DAFU PPO Film excels where standard films fail:

1. 5G Communication & High-Frequency Devices:​ Low dielectric constant minimizes signal loss in base stations and antennas.
2. Automotive & EV Systems:​ High heat resistance for sensors, battery insulation, and motor slot liners.
3. Precision Motors:​ Used as phase insulation paper and slot insulation due to high rigidity and heat resistance.
4. Aerospace & Defense:​ Reliable performance in extreme thermal cycling environments.
5. High-End Consumer Electronics:​ Internal insulation for high-wattage fast-charging adapters and laptops.

Quality Assurance & Manufacturing

Produced by Foshan DAFU New Material Co., Ltd., a leader in specialty polymer films. We ensure:

• Consistent Thickness Tolerance​ across rolls up to 1100mm wide.
• Clean Room Compatible​ processing for dust-sensitive applications.
• Custom Slitting​ services to match your production line requirements.

Frequently Asked Questions (FAQ)

Q: How does PPO film compare to Polyimide (PI) film?​

A: PPO offers similar heat resistance to mid-range PI but with significantly lower moisture absorption and a much more competitive cost, making it ideal for mass-market electronics.

Q: Is this film suitable for laser cutting?​

A: Yes, the low thermal shrinkage (MD 1.0%, TD 0.5% @200°C) makes it stable for laser processing and die-cutting.

Q: Can I get samples for testing?​

A: Absolutely. We provide free A4-sized samples for qualified B2B inquiries.