SPIFR #5 Metal Fire Retardant O Shape Zipper

    The O-Shape Fire-Retardant Zipper is purpose-built for garments and equipment requiring a full circular opening structure. Its seamless O-form configuration provides 360° accessibility, enabling rapid operations, encapsulation, or controlled enclosure in demanding protective environments.

Engineered for Complete Circular Integration
    Unlike partial-curve or directional zippers, the O-shaped layout forms a continuous closed loop, ideal for applications where equipment modules, ventilation ports, containment zones, or detachable system panels require symmetrical access. The geometry ensures uniform tension distribution and smooth mechanical motion along the entire orbit.

Advanced Fire-Retardant Performance
    Manufactured with flame-resistant textile tape and thermally stable metal elements, the zipper is capable of withstanding prolonged exposure to heat, sparks, and fire-risk conditions. The materials resist melting or warping, ensuring safety-critical garments maintain structural integrity in high-temperature settings.

#5 Metal Teeth – Strength in Every Direction
    The high-density metal teeth provide exceptional durability and engagement strength. Even when installed in a circular track, the teeth remain precisely aligned, ensuring consistent closure pressure and long-term endurance under rotational motion, repeated bending, or localized stress.

Precision Slider Movement Along a 360° Path
    The slider system is engineered to operate smoothly along the circular track, maintaining stable gliding performance without snagging or misalignment. This makes the O-shape zipper suitable for specialized functions such as:
• Protective suit modules and sealed access points
• Industrial FR equipment covers
• Rescue & emergency response helmets or hoods
• Circular inspection or ventilation openings
• Tactical gear with detachable compartments
• Encapsulation garments for chemical or biological operations

Optimized for High-Spec Industries
    Designed for environments where safety, accessibility, and structural reliability coexist:
• Fire, heat, and arc-protection gear
• Chemical handling and biohazard suits
• Oil & gas industrial protective equipment
• Decontamination systems
• Military, tactical, and special operations apparel

Full Custom Engineering Support
    We provide complete OEM/ODM customization to match your application:
• O-ring diameter and track curvature
• Tape materials, colors, and FR grades
• Slider types: auto-lock, reinforced lock, or free-run
• Metal finishes and puller customization
• Seam reinforcement, waterproofing options, and specialized bonding systems

    Every zipper is manufactured under strict quality standards to guarantee reliability in the most demanding operational environments.

Circular Design, Total Reliability
    The O-Shape Fire-Retardant Zipper combines full-angle accessibility with fire-resistant engineering, delivering a dependable closure system for next-generation protective apparel and industrial applications.