VETIN 400 Pcs Heat Shrink Tubing Kit, 3:1 Ratio Adhesive Lined, Industrial Wire Shrink Wrap, Assorted Sleeving for DIY Cable Wire, Black

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【 3:1 Shrink Ratio & Fast Contraction Speed】: Shrinks to 1/3 of its original diameter for an ultra-tight seal—solving the common issue of insufficient shrinkage and poor sealing with 2:1 heat shrink tubes. Operates at a shrink temperature of 80–125°C, delivering professional, secure connections in just seconds.
【Built-In Adhesive Coating】: Heating the heat shrink tubing triggers automatic adhesive release, creating an extremely reliable sealed connection. This forms a waterproof, long-lasting insulation barrier—backed by dependable performance you can trust.
【Dual-Wall Tubing Design】: The outer wall offers exceptional abrasion resistance for durable protection, while the inner wall ensures consistent waterproof sealing and excellent strain relief. Pair it with our solder connectors (sold separately) for even more reliable electrical work—you’ll be impressed by the results!
【7 Common Sizes with Organizer Case】: Comes with a plastic organizer featuring 12 separate compartments, making it easy to quickly identify and sort the right size for your project. Includes 7 of the world’s most widely used shrink tube diameters (ranging from 3/32" to 3/4"), all pre-cut to a convenient 1.77-inch length for ready-to-use convenience.
【Versatile Waterproof Applications】: Ideal for marine and automotive wiring, model building, and DIY electrical projects. Perfect for multiple uses: electrical insulation, environmental sealing (protects against moisture, fuel, and chemicals), and surface protection (prevents abrasion, peeling, and denting).

Product Description

Are you looking to fix a damaged wire, seal out moisture, or provide enhanced strain relief? VETIN resistant heat shrink tubing is an easy to use solution that can be used in automotive, hobby RC, and home electrical wiring projects. It can be used in a variety of applications such as: Electrical insulation (wire repairs, insulating electrical terminals wires, protecting charging cables, insulating solder joints)Environmental seal to protect from moisture, UV and fuel Strain relief for electrical terminals Identifying wires and cables (color-coding) Grouping loose wires (usually in wire harnesses) Creating thermal insulation for heat sensitive components Protecting surfaces against abrasion, peeling, and denting 3:1 Shrink Ratio Shrink Tube Heat Activated Adhesive LiningThis is a moderately stiff dual wall heat shrink tubing with the internal adhesive layer. It is 3:1 shrink ratio tubing, which allows it to be used in significantly more applications compared to 2:1 shrink ratio tubing. When heat is applied, shrink tubing recovers and the internal adhesive layer melts. A small fillet of clear adhesive (about 1 mm wide) becomes visible at the end of the heated tubing. When cooled down it forms a rigid seal. Heat activated glue strongly adheres to wires or any other surface. This heat shrink tubing assortment comes organized in individual compartments to keep things neat and tidy. Dual Wall Shrink TubingDual wall heat shrink tubing provides better rigidity and abrasion resistance. Dual wall tubing design has the increased ability to stand up to wear and tear. This wire heat shrink tubing is perfect for everyone.