Pyralux® TK

Pyralux® TK Copper Clad Laminate and Bonding Film System

DuPont™ Pyralux® TK is a fluoropolymer/polyimide composite double sided copper clad laminate and bondply ideal for high speed digital and high frequency flexible circuit applications.

Pyralux® TK Copper Clad Laminate and Bonding Film System

Pyralux® TK laminate and bondply films are designed for high speed flex applications, including microstrip and stripline controlled impedance constructions.
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Specifically formulated with DuPont™ Teflon® fluoropolymer film and Kapton® polyimide film for high speed digital and high frequency flexible circuit applications. Its use in flex interconnect applications provide exceptional electrical performance.


• Certified to IPC 4203A/13
• Available in dielectric thicknesses of 2, 3, and 4 mils
• Available in copper thicknesses of 12, 18 and 35 microns
• Available in copper types RA, ED




DuPont™ Pyralux® TK bondply composites are constructed of DuPont™ Kapton® polyimide film coated on both sides with a fluoropolymer adhesive. Bondply is used to encapsulate two etched details for environmental protection and electrical insulation. Using bondply can eliminate a layer of Kapton® and a layer of adhesive in low count multilayer constructions.

Bondply Features:

• No tack for ease of registration
• Excellent encapsulation ability
• Available in thicknesses of 3, 4, and 5.5 mils
• Certified to IPC 4203A/5


  • VIDEO: Get to Know Pyralux® TK

    The convergence of flex and high-frequency. Take your circuit designs to new heights with increased speed and flexibility.


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