Large O.D. Glass Tube for Glow Stick

This single-end sealed glass tube is a core isolation component customized for industrial glow stick production. It serves as an independent inner container to hold chemical solution and completely separate two reactive chemical substances inside the glow stick structure. After liquid filling, the open end can be processed for secondary sealing. When the final glow stick product is bent by hand, the glass tube breaks in a stable manner, allowing different chemical liquids to mix fully and activate the standard chemiluminescence reaction.

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Feature

This glass tube adopts precise dimensional control and uniform wall thickness to achieve optimal brittleness performance. It remains intact and stable during long-term storage, transportation and regular vibration handling, while cracking cleanly and reliably under standard bending force. The professional single-end sealing process ensures tight sealing performance and zero leakage before assembly. All key dimensions including outer diameter, tube length and wall thickness support full customization to fit different glow stick models. The tube surface is smooth and highly clean without impurities or dust, which guarantees stable luminous effect and consistent product quality. Standard finished packaging enables smooth automatic filling and assembly on customer production lines.

Application

Large O.D. glass tubes are mainly applied in standard full-size glow sticks, long straight glow sticks and hook-type glow sticks. Glow sticks assembled with large outer diameter glass tubes feature brighter luminous intensity and longer glowing duration, making them suitable for large event atmosphere lighting, outdoor night marking, field camping, traffic warning and professional emergency rescue scenarios.