400 Pcs Heat Shrink Tubing Kit-3:1 Ratio Adhesive Lined,Marine Grade Shrink Wrap - Industrial Heat-Shrink Tubing - Black
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Availability:
In Stock.
Arrives
Thursday, May 21
Size: 3:1
Number of Items: 400
Features
- 3:1 SHRINK RATIO & FAST CONTRACTON SPEED: Shrinks to 1/3 of its original diameter and seals extremely tightly, solving the problem of many 2:1 shrink tubes that don't shrink enough and therefore don't seal tightly enough, Shrink temperature: 80 to 125C, Provides a professional connection within seconds.
- INCLUDES ADHESIVE COATING: When the heat shrink tubing is heated, it automatically releases adhesive and seals the connection extremely reliably. This creates a waterproof and durable insulation with a satisfaction guarantee. It alse as valentines gifts for men.
- DUAL WALL TUBING: The outer wall of the shrink tube provides extremely high abrasion resistance. The inner wall creates a consistently waterproof seal and excellent strain relief. Our solder connectors will also impress you!
- 7 SIZES: We offer 7 of the most commonly used shrink tube diameters in the world, ranging from 3/32" to 3/4". All of our shrink tubes are pre-cut to 1.77 inches. It alse as valentines gifts for men.
- VERSATILE APPLICATIONS: The waterproof Eventronic shrink tubing can be used in marine and automotive wiring, model building, and DIY electrical wiring projects or valentines gifts for men. The application areas are very diverse, such as electrical insulation/environmental sealing to protect against moisture, fuel and chemicals/protection of surfaces against abrasion, peeling and denting.
- OUR COLLACTION OF HAET SHRINK TUBING: Eventronic assorted heat shrink tubing comes in kits as well as 6.6-20 Ft rolls. We offer a great variety of sizes (3/32 to 2) and colors (black, red, white, blue, clear).
Brand: Eventronic
Color: Black
Material: polyolefin
Style: Heat Shrink Tubing
Installation Type: Self-Adhesive
Brand: Eventronic
Indoor Outdoor Usage: Outdoor
Number of Pieces: 400
Unit Count: 400.0 Count
Manufacturer: Eventronic
Model Number: HST-400
Mfr Part Number: HST-400
Warranty Description: No
Enclosure Material: polyolefin
Installation Type: Self-Adhesive
Color: Black
Style Name: Heat Shrink Tubing
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, May 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 3:1
Number of Items: 400
This is a great collection of electric wire shrink wrap especially for smaller caliber wires. The larger gauge shrink wrap works, but is too short for any wires large enough to fit. You will have to use 3 or 4 of the larger wraps overlapping each other.
Reviewed in the United States on April 13, 2026 by L. hitchings
Size: 3:1
Number of Items: 400
I’m really impressed with the quality of this 400 Pcs Heat Shrink Tubing Kit. I’ve used cheaper sets before where the tubing stays thin and brittle, but this 3:1 ratio stuff is much thicker and the adhesive lining actually creates a solid, waterproof seal. It’s perfect for marine or automotive projects where you really want to protect the connection from corrosion. The variety of sizes in the box is great too—I didn't have to hunt for the right fit, and they shrink down nice and tight without burning easily. If you’re tired of thin wrap that slides off, this "marine grade" set is definitely worth the few extra bucks.
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Reviewed in the United States on February 20, 2026 by DC
Size: 3:1
Number of Items: 400
I bought this heat shrink tubing kit for some wiring projects, and overall it’s been a really handy addition to my toolbox. The assortment is great—you get a wide range of sizes organized neatly in a plastic case, which makes it easy to find what you need without digging around. The tubing itself shrinks evenly when heated and gives a clean, professional look to connections. I’ve used it on automotive wiring and small electrical repairs, and it holds up well. Another plus is how easy it is to work with. A simple heat gun (or even a lighter in a pinch) does the job, and the tubing conforms tightly around the wires without splitting or burning too quickly. On the downside, the wall thickness is a bit on the thinner side compared to some premium brands, so for heavy-duty or outdoor applications, you might want something more robust. Also, while the variety is nice, I found myself running out of the most commonly used sizes faster than others. Overall, this is a solid, affordable kit that’s perfect for DIYers, hobbyists, and basic automotive or household wiring jobs. It may not be top-tier professional grade, but it definitely gets the job done.
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Reviewed in the United States on April 11, 2026 by Amazon Customer
Size: 3:1
Number of Items: 400
They’re decent. I usually get the marine grade heat shrink from Harbor Freight. I like how the adhesive on those ooze out from the ends when you take a heat gun to them. The adhesive on these oozes out a bit but not as much as I would like to inspire confidence. I’ll most likely go back to the Harbor Freight ones but for the money these are good and work well.
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Reviewed in the United States on December 27, 2025 by Mario Chiarani
Size: 2:1
Number of Items: 900
This is an awesome set with a lot of different sizes and the qualities is great and they shrink right down better than most other others I’ve bought. I used this for a high-end car audio system and it did the job perfectly.
Reviewed in the United States on April 19, 2026 by Troy DeBose
Size: 3:1
Number of Items: 400
I was pretty impressed with these heat shrink tubing sleeves. They work well, and are heavy duty enough for any job. Very durable, and after they cool and harden after heating, they are rock solid and waterproof. I had to use the 3/4" sleeves for some very heavy cable wiring connections, and was very happy with the results.
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Reviewed in the United States on March 25, 2026 by Jackson Jr
Size: 3:1
Number of Items: 400
You know it’s quality heat shrink when the glue comes out.
Reviewed in the United States on April 29, 2026 by blake lineberry
Size: 3:1
Number of Items: 400
Works exactly how it should. Good variety of sizes. Needed it for rewiring my trailer. Shrinks down nice
Reviewed in the United States on April 24, 2026 by josh