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High-Quality Heat Seal Cover Tape from China Suppliers | Durable Factory-Made Solutions for Electronic Packaging
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High-Quality Heat Seal Cover Tape from China Suppliers | Durable Factory-Made Solutions for Electronic Packaging

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The Heat Seal Series Cover Tapes are essential for the surface-mount packaging of electronic components, making them a top choice among China suppliers and factories. This product line is meticulously structured, focusing on a combination of three distinct functional types and a variety of material grades.

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Core Performance (Unified & Excellent)

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Each variant in this series demonstrates exceptional and stable mechanical properties, featuring a tensile strength of ≥2.5 kg and an elongation rate of ≥30%. These characteristics ensure reliable performance during high-speed packaging processes. The tapes are designed with a consistent recommended sealing temperature window (150-180°C and 190-250°C) and a uniform peel strength range (30-90g), guaranteeing dependable and user-friendly heat sealing capabilities. As a leading product from China, these tapes are ideal for factories seeking quality and efficiency.

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    YJRG-59H
    Standard — Transparent
    Base model offering reliable sealing performance for standard packaging applications.
    YJRG-59H-1L
    Single-Sided ESD — Light Blue
    Surface Resistivity: 106–1010 Ω
    Anti-static protection on one side for sensitive components.
    YJRG-59H-1LS
    Double-Sided ESD — Dark Blue
    Surface Resistivity: 106–1011 Ω
    Comprehensive dual-sided protection, ideal for highly sensitive electronic components.
    Standard
    (Transparent)
    Single-Sided ESD
    (Light Blue)
    Resistivity: 106–1010 Ω
    Double-Sided ESD
    (Dark Blue)
    Resistivity: 106–1011 Ω
    Thickness (mm)
    ±0.006
    Tensile Strength (kg) Elongation (%) Sealing Temp. (℃)
    Standard
    Sealing Temp. (℃)
    High-Speed
    Peel Force (g) Compatible Carrier Tape
    YJRG-59H YJRG-59H-1L YJRG-59H-1LS 0.055 ≥ 2.5 ≥ 30 150 – 180 190 – 250 30 – 90 PS
    📏
    Thickness 0.055 mm (±0.006)
    💪
    Tensile Strength ≥ 2.5 kg
    🔁
    Elongation ≥ 30%
    🌡️
    Standard Seal Temp. 150 – 180 ℃
    🚀
    High-Speed Seal Temp. 190 – 250 ℃
    🔓
    Peel Force 30 – 90 g
    The YJRG-59H series cover tape comprises the base model YJRG-59H, the single-sided anti-static model YJRG-59H-1L, and the double-sided anti-static model YJRG-59H-1LS. The product features a standard thickness of 0.055 mm, a design that achieves an optimal balance between mechanical strength and handling convenience.

    It demonstrates excellent mechanical properties, with a tensile strength ≥ 2.5 kg and an elongation ≥ 30%. This combination of parameters ensures stable performance during high-speed packaging processes.

    Thermal performance data indicates that this series is suitable for conventional sealing temperatures of 150–180°C, while also meeting the requirements for high-speed sealing at 190–250°C. This temperature adaptability allows it to fulfill various production efficiency needs.

    The precisely controlled peel force range of 30–90 g guarantees sealing reliability while facilitating potential rework operations. Designed specifically for use with PS carrier tapes, the double-sided anti-static model within the series provides comprehensive protection for sensitive electronic components, effectively preventing electrostatic damage and improving product yield.
    Q
    What is the difference between YJRG-59H, YJRG-59H-1L, and YJRG-59H-1LS?
    YJRG-59H is the standard transparent base model. YJRG-59H-1L is a light blue, single-sided ESD (anti-static) version with a surface resistivity of 106–1010 Ω. YJRG-59H-1LS is a dark blue, double-sided ESD version with a surface resistivity of 106–1011 Ω, offering more comprehensive electrostatic protection for highly sensitive components.
    Q
    What carrier tapes are compatible with the YJRG-59H series?
    The YJRG-59H series cover tapes are specifically designed for use with PS (Polystyrene) carrier tapes, ensuring optimal sealing adhesion and reliable component retention during transport and handling.
    Q
    What sealing temperatures are recommended for this cover tape series?
    For standard sealing machines, the recommended sealing temperature range is 150–180°C. For high-speed packaging machines, the recommended range is 190–250°C. This broad temperature compatibility allows the YJRG-59H series to adapt to various production line configurations and efficiency requirements.
    Q
    What is the peel force of the YJRG-59H series, and why does it matter?
    The peel force of the YJRG-59H series is precisely controlled within a range of 30–90 g. This range is carefully balanced to ensure a secure seal that prevents components from falling out during transport, while still being easy enough to peel for rework or component retrieval operations without damaging sensitive parts.
    Q
    How does the double-sided ESD model protect electronic components?
    The double-sided anti-static model YJRG-59H-1LS features ESD protection on both surfaces, with a surface resistivity of 106–1011 Ω. This dual-sided protection effectively dissipates static charges from both the tape surface and the component contact side, preventing electrostatic discharge (ESD) damage to sensitive electronic components and ultimately improving product yield.
    Q
    What mechanical properties does the YJRG-59H series offer for high-speed packaging?
    The YJRG-59H series features a tensile strength of ≥ 2.5 kg and an elongation of ≥ 30%, combined with a precise thickness of 0.055 mm (±0.006 mm). These mechanical properties ensure that the cover tape maintains structural integrity under the tension and speed demands of high-speed automated packaging processes, minimizing breakage and misfeeds.