Pyralux® FR

  • Home
  • Pyralux® FR flame retardant acrylic-based copper-clad laminate

Pyralux® FR flame retardant acrylic-based copper-clad laminate


Pyralux® FR flame retardant acrylic-based copper-clad laminate features Kapton® polyimide film bonded to copper foil on one or both sides using a proprietary flame‑retardant, C‑staged modified acrylic adhesive. The laminate is available with rolled‑annealed (RA) or electrodeposited (ED) copper foil, including double‑treated copper foil to eliminate surface preparation steps prior to resist or coverlay lamination. Pyralux® FR supports balanced and unbalanced constructions and is designed to provide reliable bonding and efficient processing for flame‑retardant circuit designs.

Features & Benefits

  • Flame retardant modified acrylic adhesive composition
  • Excellent bond strength supporting high reliability
  • Able to withstand multiple lamination cycles
  • Balanced and unbalanced constructions available
  • No refrigeration required for storage

Applications

  • Single sided and double-sided flexible circuits requiring flame retardancy
  • Multilayer flexible circuit constructions

Pyralux® FR Technical Documents

View by:
✕
✕
To access secured content from DuPont Please Sign In or Sign Up below

    Laminate Product Selector

    Click here to access the Laminate Product Selector

    Pyralux® FR Product Series Properties

    Property Group Property Name Value Test Method
    Dielectric Dielectric Constant (Dk) 10GHz 3 ASTM D2520 / IPC-TM-650 2.5.5.3
    Dielectric Constant (Dk) 1MHz 3.6 ASTM D2520 / IPC-TM-650 2.5.5.3
    Dielectric Strength (V/μm)   ASTM D149
    Loss Tangent (Df) 10GHz 0.02 ASTM D2520 / IPC-TM-650 2.5.5.3
    Loss Tangent (Df) 1MHz 0.03 ASTM D2520 / IPC-TM-650 2.5.5.3
    Electrical / Insulation Surface Resistance (Ω) >1x10^15 IPC-TM-650 2.5.17
    Volume Resistivity (Ω・cm) >1x10^15 IPC-TM-650 2.5.17
    Mechanical Elongation at Break (%)   IPC-TM-650 2.4.19
    Tensile Modulus (Gpa)   IPC-TM-650 2.4.19

    Pyralux® FR Product Properties

    Property Name Form Factor Package Adhesive Type Copper Thickness (μm) Copper Thickness (oz) Copper Type Dielectric Thickness (μm) Dielectric Thickness (mil) Adhesive Thickness (μm) Adhesive Thickness (mil)
    FR7012R Single-sided FCCL Sheet Acrylic 18 0.50 RA 13.0 0.50 13.0 0.5
    FR7062R Single-sided FCCL Sheet Acrylic 18 0.50 RA 13.0 0.50 25.0 1.0
    FR7004R Single-sided FCCL Sheet Acrylic 18 0.50 RA 25.0 1.00 13.0 0.5
    FR7002R Single-sided FCCL Sheet Acrylic 35 1.00 RA 13.0 0.50 13.0 0.5
    FR9110R Single-sided FCCL Sheet Acrylic 35 1.00 RA 25.0 1.00 25.0 1.0
    FR9120R Single-sided FCCL Sheet Acrylic 35 1.00 RA 25.0 1.00 51.0 2.0
    FR9150R Single-sided FCCL Sheet Acrylic 35 1.00 RA 25.0 1.00 127.0 5.0
    FR9210R Single-sided FCCL Sheet Acrylic 70 2.00 RA 25.0 1.00 25.0 1.0
    FR9220R Single-sided FCCL Sheet Acrylic 70 2.00 RA 25.0 1.00 51.0 2.0
    FR7022R Double-sided FCCL Sheet Acrylic 18 0.50 RA 13.0 0.50 13.0 0.5
    FR7014R Double-sided FCCL Sheet Acrylic 18 0.50 RA 13.0 0.50 25.0 1.0
    FR7010R Double-sided FCCL Sheet Acrylic 35 1.00 RA 13.0 0.50 25.0 1.0
    FR9111R Double-sided FCCL Sheet Acrylic 35 1.00 RA 25.0 1.00 25.0 1.0
    FR9121R Double-sided FCCL Sheet Acrylic 35 1.00 RA 25.0 1.00 51.0 2.0
    FR9151R Double-sided FCCL Sheet Acrylic 35 1.00 RA 25.0 1.00 127.0 5.0
    FR9212R Double-sided FCCL Sheet Acrylic 70 2.00 RA 25.0 1.00 25.0 1.0
    FR9222R Double-sided FCCL Sheet Acrylic 70 2.00 RA 25.0 1.00 51.0 2.0
    FR7090R Double-sided FCCL Sheet Acrylic 70 2.00 RA 51.0 2.00 51.0 2.0