Dafu

When your application demands a combination of heat resistance, transparency, and toughness, Polyphenylsulfone (PPSU) film stands out as a superior engineering material. Foshan Dafu New Material Co., Ltd. offers premium DFPPSU film designed to meet rigorous industrial standards.

According to the latest technical data sheet (TDS), Dafu’s PPSU film boasts a glass transition temperature (Tg) of 220°C​ and a Relative Temperature Index (RTI) of 180°C, ensuring dimensional stability under high thermal stress. Unlike many high-performance polymers, this film maintains an impressive light transmittance of 85.5%, making it ideal for sight glasses, display windows, and optical sensors.

Key advantages include:

• Robust Mechanical Properties:​ With a tensile strength up to 68 MPa (MD) and elongation at break of 125%, it resists cracking and impact.
• Excellent Electrical Insulation:​ Featuring a dielectric strength of 45 kV/mm and volume resistivity of 10¹³ Ω·m, it is perfect for flexible printed circuits and insulation barriers.
• Inherently Safe:​ The film is halogen-free, exhibits low moisture absorption (0.6%), and meets stringent flammability requirements.

Available in thicknesses from 25µm to 500µm and widths up to 1050mm, Dafu’s PPSU film is versatile for processing. Whether you need a transparent high-heat barrier or a durable flexible substrate, PPSU delivers reliability where standard films fail.