Pyralux® Bonding Films

Pyralux® Coverlays, Bondplys & Sheet Adhesives

DuPont™ Pyralux® bonding films have been a standard in the flex circuit industry for over 30 years.

Coverlays consist of DuPont™ Kapton® polyimide film coated on one side with acrylic adhesive, using Pyralux® LF or FR, epoxy adhesive, or fluropolymer adhesive.

Bondplys are coated on both sides with acrylic adhesive, using Pyralux® LF or FR.

Adhesives are provided as ‘B-stage’ films coated onto release paper.

Bonding films are available with either acrylic adhesive, using Pyralux® LF or FR, or epoxy adhesive, which is available under the Nikaflex® brand name. DuPont also offers a photoimagable dry film coverlay known as Pyralux® PC.

Pyralux® Coverlays

Pyralux® FR - DuPont™ Pyralux® FR coverlay composites are constructed of DuPont™ Kapton® polyimide film, coated on one side with a proprietary B-staged modified acrylic adhesive.

Pyralux® LF - DuPont™ Pyralux® LF coverlay composites are constructed of DuPont™ Kapton® polyimide film, coated on one side with a proprietary B-staged modified acrylic adhesive. 

Pyralux® LF-B - DuPont™ Pyralux® LF-B is a black polyimide acrylic coverlay made with DuPont™ Kapton® B polyimide film ideal for products where a uniform, aesthetically pleasing appearance is desired.

Pyralux® PC - DuPont™ Pyralux® PC 1000 is a modified acrylic flexible photoimagable dry film coverlay used for single and double sided applications that require fine line resolution along with bend and crease flexibility.

Pyralux® HXC -DuPont™ Pyralux® HXC is DuPont™ Kapton® MBC black polyimide film coated with epoxy ideal for products where uniform matte black appearance is desired. 

Pyralux® Bondplys

Pyralux® FR - DuPont™ Pyralux® bondply composites are constructed of DuPont™ Kapton® polyimide film coated on both sides with a proprietary B-staged modified acrylic adhesive. 

Pyralux® LF - DuPont™ Pyralux® bondply composites are constructed of DuPont™ Kapton® polyimide film coated on both sides with a proprietary B-staged modified acrylic adhesive.

Pyralux® TK - 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® Sheet Adhesives

Pyralux® FR - DuPont™ Pyralux® FR sheet adhesive is a proprietary B-staged modified acrylic adhesive coated on release paper. 

Pyralux® LF - DuPont™ Pyralux® LF sheet adhesive is a proprietary B-staged modified acrylic adhesive coated on release paper.

Pyralux® LG - DuPont™ Pyralux® LG is an acrylic impregnated glass fabric composite heat sink bonding and stiffener applications.

DUPONT PRODUCTS & SERVICES

  • Pyralux® TK

    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® LF

    DuPont™ Pyralux® LF products are acrylic-based copper clad laminates, coverlays, bondplys and sheet adhesives and have been the industry standard in high reliability applications in the consumer electronics industry for over 35 years with a proven record of consistency and dependability.

  • Pyralux® AP

    DuPont™ Pyralux® AP is an all polyimide double sided copper clad laminate that has excellent thermal, chemical and mechanical properties ideal for use in high reliability flex and multilayer flex circuitry.

  • Pyralux® JT

    Pyralux® JT Coverfilm and Bonding Material is a polyamideimide-based technology for use in rigid-flex applications or higher temperature flex applications.

  • Pyralux® LF-B

    DuPont™ Pyralux® LF-B is DuPont™ Kapton® B black polyimide film coated with acrylic ideal for products here uniform matte black appearance is desired.

  • Pyralux® HXC

    DuPont™ Pyralux® HXC is DuPont™ Kapton® MBC black polyimide film coated with epoxy ideal for products where uniform matte black appearance is desired.

  • Pyralux® FR

    DuPont™ Pyralux® FR products are acrylic-based flame retardant copper clad laminates, coverlays, bonpdplys and sheet adhesives for products requiring UL rating.

  • Pyralux® AC

    DuPont™ Pyralux® AC is an all polyimide single sided copper clad laminate ideal for applications that require thin, light and high density circuitry along with chip-on-flex attachment.

  • Pyralux® PC

    DuPont™ Pyralux® PC 1000 is a modified acrylic flexible photoimagable dry film coverlay used for single and double sided applications that require fine line resolution along with bend and crease flexibility.

  • Pyralux® LG

    DuPont™ Pyralux® LG is an acrylic impregnated glass fabric composite heat sink bonding and stiffener applications.

  • Pyralux® APR

    DuPont™ Pyralux® APR is an all polyimide double sided resistor laminate ideal for advanced applications in military, aerospace, automotive and consumer electronics markets, where reliable embedded resistor technology, temperature tolerance, and robust processing are required.