Sumitube„¢ W3B2 Heat Shrink Tubing - 1/4" Inside Diameter - 3:1 Shrink Ratio - Dual Wall Adhesive Lined - UL / CSA / SAE Recognized - Black

Product Features:

• Dual wall
• Flame-retarded heat-shrinkable tubing with meltable adhesive for waterproofing of irregular-shaped objects
• Flexible
• SAE/UL/CSA recognized
• Waterproof sealing for electronic devices with irregular shapes or profiles
• Encapsulation for wire branches
• Insulation and protection for wire joints
• Material: Outer: Irradiated cross-linked flexible flame-retarded polyolefin, Inner: Meltable adhesive

Product Specifications:

• SAE-AS23053/4 Class 3 UL224
• File No. E75077
• Catalog No. SUMITUBE™ W3B2 or 891
• Rating temperature: 125℃
• Rating voltage: 600V
• CSA C22.2 No. 198.1
• File No. LR33298
• Rating temperature: 125℃
• Rating voltage: 600V

Click Here to See Technical Specification Data

Product Description:

This specialized tubing is a dual-wall, flame-retarded heat-shrinkable tubing with meltable adhesive, specifically designed for waterproofing irregular-shaped objects and providing flexible insulation and protection for electronic devices, wire joints, and wire branches. It features an outer layer made of irradiated cross-linked flexible flame-retarded polyolefin and an inner layer of meltable adhesive, ensuring effective waterproof sealing in environments where irregular shapes or profiles are present. This tubing is recognized by SAE, UL, and CSA standards, compliant with SAE-AS23053/4 Class 3, UL224 (File No. E75077), and CSA C22.2 No. 198.1 (File No. LR33298). It is rated to withstand temperatures up to 125℃ and voltages up to 600V, making it suitable for various industrial and electronic applications that require reliable, durable, and flame-retarded insulation and sealing solutions.

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Shipping Policy:

• All orders are processed and shipped within [1] business day.
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• Shipping costs are calculated at checkout based on the Dimensions, weight and destination of your order.

Return Policy:

• Customers have 30 days from the date of receiving their order to initiate a return.
• Please note that all cut-to-length orders (including but not limited to 10, 25, 50, 100-foot cuts) are non-returnable and considered final sale.
• Only uncut, full spool lengths are eligible for return.
• Returns must be shipped at the customer’s expense.
• To initiate a return, please contact our customer service team with your order number and reason for return.
• Returned items must be in their original condition and packaging.
• Once we receive and inspect the returned item, we will process a refund or exchange, depending on your preference.

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