Improved Dimensional Stability on 3mil Pyralux® TK 

Based on customer feedback, DuPont has improved the dimensional stability of the 3mil version of Pyralux® TK to enable easier registration and processing during multilayer TK lamination.

Pyralux® TK consists of Teflon® on either side of Kapton® film offered in 2, 3 and 4 mil constructions.  The new 3mil construction will have dielectric constant and loss tangent consistent with other Pyralux® TK constructions making it easier for both fabricators and designers to work with the material.

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.  It is formulated with DuPont™ Teflon® fluoropolymer film and Kapton® polyimide film for high speed digital and high frequency flexible circuit applications.  It provides exceptional electrical performance in flex interconnect applications.