Eventronic Heat Shrink Tubing Kit, 200 Pieces, 3:1 Adhesive-Lined Dual-Wall
Product description
For wire repairs and connections that need insulation plus a sealed fit, this Eventronic heat shrink tubing kit combines a 3:1 shrink ratio with an adhesive-lined, dual-wall design. The inner adhesive melts as the tubing shrinks, helping it bond around the connection. Seven commonly used diameters make it easier to match tubing to different wire sizes and projects. Use it for electrical work, automotive wiring, marine applications, and DIY repairs.
Where it shines

The dual-wall construction pairs an outer layer that provides abrasion resistance with an inner adhesive layer that melts during shrinking. As the adhesive bonds to the surface, it helps seal and insulate the connection while supporting corrosion resistance. That makes the kit useful for wire connections, solder joints, cable assemblies, and electronic protection where a close-fitting sleeve and adhesive seal are wanted.
The 3:1 shrink ratio lets the tubing contract to one-third of its original diameter. Compared with a 2:1 shrink ratio, this gives more room for a snug fit around connections that need the tubing to close down further. The assortment spans seven diameters, from 3/32" to 3/4", so it can serve a range of common wiring tasks rather than a single cable size. Its 3.54" extra length also provides material to position over a connection before shrinking.



Quick overview
- Type: Adhesive-lined, dual-wall heat shrink tubing
- Quantity: 200 pieces
- Shrink ratio: 3:1
- Sizes: Seven diameters, from 3/32" to 3/4"
- Length: 3.54"
- Shrink temperature: 125°C (257°F)
- Withstand voltage: 600V

The kit is also described as waterproof and marine grade, and is intended for uses including boats and ships, electrical equipment, audio, wire harnesses, and corrosion protection. For a connection, cut a suitable length, slide it over the area, and apply heat with a heat gun. The adhesive-lined inner wall melts as the tube contracts around the connection.
Everyday use



For a home wiring project, choose a diameter that can slide over the connection, position the tubing across the area to be covered, then apply heat with a heat gun. The seven-size assortment is handy when a project includes different wire or joint sizes. In a vehicle, the tubing can be used on wire connections, for marine or outdoor equipment, its adhesive-lined construction supports a sealed covering around the joint.
This format is especially relevant when a basic 2:1 sleeve may not shrink tightly enough for the connection. The 3:1 ratio and inner adhesive offer a distinct approach: the sleeve contracts further while the melted adhesive bonds to the covered surface. The tubing is also listed for protecting wire ends, electronic components, and solder joints, giving the assortment uses beyond a single repair.

Questions before you buy
How much can the tubing shrink? Its 3:1 ratio means it can shrink to one-third of its original diameter. The listed shrink temperature is 125°C (257°F).



How do you apply it? Cut a suitable piece, slide it over the connection, and use a heat gun to shrink it. The adhesive on the inner wall melts as the tubing contracts and bonds to the surface.
What kinds of projects is the kit designed for? Listed uses include electrical and automotive wiring, boats and ships, wire connections, solder-joint corrosion protection, audio equipment, wire harnesses, and DIY projects.
When it makes sense
Choose this kit when a wiring project calls for multiple tubing diameters, a 3:1 shrink ratio, and an adhesive-lined dual wall in one assortment. Its combination of sizing options, insulation, and adhesive-assisted sealing suits repairs and connections across electrical, automotive, marine, and DIY work.
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