Flame-retardant heat shrink tubing with adhesive properties for metals, polyolefins, and PVC, and capable of waterproofing.
The "Sumi Tube W3B2" is a flame-retardant heat shrink tube with adhesive, effective for waterproofing objects with significant step differences, compliant with SAE-AMS/UL/CSA standards. It has adhesive properties for metals, polyolefins, and PVC. It is flexible and flame-retardant (free from chlorine-based flame retardants and specific brominated flame retardants [PBDE, PBB]), and features a thicker adhesive layer compared to the Sumi Tube O2B2. Additionally, the "Sumi Tube W3B2 (4X)" is also available. 【Specifications】 ■ Material… Outer layer: Electron beam cross-linked flexible flame-retardant polyolefin resin Inner layer: Hot melt adhesive ■ Shrink temperature… Above 110°C ■ Shrinkage rate… Inner diameter shrinkage rate of over 60% (W3B2 [4X] is over 75%) Length change rate of over -15% ■ Continuous use temperature… -55 to 125°C (SAE-AMS-DTL-23053 standard: -55 to 110°C) *For more details, please refer to the PDF document or feel free to contact us.
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basic information
【Applicable Standards】 ■UL224 Certified File No. E75077 (common to W3B2 and W3B2〔4X〕) Catalog No. SUMITUBE W3B2, SUMITUBE W3B2 (4X) or 891 Temperature Rating 125℃, Voltage Rating 600V, ■CSA C22.2 No. 198.1 (W3B2 only) Certified File No. LR33298 Temperature Rating 125℃, Voltage Rating 600V ■SAE-AMS-DTL-23053/4 Class 3 (common to W3B2 and W3B2〔4X〕) *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Applications】 ■ Waterproofing for electronic components with large step differences ■ Treatment of wire branching points ■ Insulation protection for wire connection points *For more details, please refer to the PDF document or feel free to contact us.
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Company information
Hagitech Co., Ltd. is a pioneer in various types of tubes. We handle tubes made from all kinds of materials, including stainless steel, aluminum, titanium, copper, brass, iron, rubber, and plastic. If you have any inquiries such as "Can you make this type of tube?" or "I'm having trouble with this...", please feel free to contact us. Our company aims to continuously supply timely products that meet the needs of the times, such as "new products," "easy-to-use products," and "convenient products," through our website, with the goal of becoming a company that is helpful to society.