• Pro-bond 8F VT-772+ RCF

    UL Approval: E214381 Version: 29/10/2025

    General Information

    VT-772+ RCF is non-reinforced film type material, which eliminates the skew and variation in high speed
    digital application with extremely low loss property (Df 0.0012@10GHz). It is designed to bond all circuit
    board materials and is more friendly to PCB process because of the thermosetting resin system.

    • Good resin flow for filling circuits
    • Excellent through hole reliability
    • Non-glass fabric reinforced, excellent electrical isotropic consistency
    • Stable Dk over temperature
    • Friendly for laser drill process
    • Suitable for sequential laminations
    • Halogen Free

    Application

    • Data center
    • HPC
    • Radar and antenna

    Availability

    20µm, 50µm, and other thickness option could be available based upon request

    Storage Condition

    Properties RCF
    Storage Condition Temperature Below 23˚C (73˚F) Below 5˚C (41˚F)
    Relative Humidity Below 55% RH /

    Properties

    Item Test Method Units Typical Value
    Dk@10GHz IPC-TM-650 2.5.5.13 - 2.80
    Df@10GHz IPC-TM-650 2.5.5.13 - 0.0012
    Tg-DMA IPC-TM-650 2.4.24.4 ˚C 260
    T288 IPC-TM-650 2.4.24 min >60
    Td(5% WT. loss) ASTM D3850 ˚C 440
    Peel strength --1oz HTE IPC-TM-650 2.4.8 Lb/in 5.0
    X/Y-CTE (50~130˚C) IPC-TM-650 2.4.41 ppm/˚C 35
    Z-CTE (50~130˚C) IPC-TM-650 2.4.24 ppm/˚C 35
    Z-CTE (50~260˚C) IPC-TM-650 2.4.24 % 1.25%
    Thermal Conductivity ASTM D5470 W/mK 0.6
    Moisture Absorption IPC-TM-650 2.6.2.1 % 0.08
    Flammability UL 94 ˚C V-0

    All test data provided are typical and not intended to be specification values. Disclaimer: The information and data contained in this technical literature is based on data and knowledge correct at the time of publishing/printing and is believed to be accurate and is offered in good faith for the benefit of the user. The user should make his own tests to verify the suitability of this product for any application before its use. All data are typical values only and subject to change without notice.

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