---
product_id: 500563927
title: "400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck"
brand: "sopoby"
price: "1425124₫"
currency: VND
in_stock: true
reviews_count: 8
url: https://www.desertcart.vn/products/500563927-400pcs-solder-seal-wire-connectors-sopoby-self-soldering-heat-shrink
store_origin: VN
region: Vietnam
---

# High conductivity Waterproof design Heat shrinkable 400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck

**Brand:** sopoby
**Price:** 1425124₫
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with Confidence: The Future of Wiring is Here!

## Quick Answers

- **What is this?** 400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck by sopoby
- **How much does it cost?** 1425124₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/500563927-400pcs-solder-seal-wire-connectors-sopoby-self-soldering-heat-shrink)

## Best For

- sopoby enthusiasts

## Why This Product

- Trusted sopoby brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Resilient:** Abrasion-resistant tubing designed for harsh environments.
- • **Enhanced Performance:** Tin barrel for increased current flow and reduced voltage drop.
- • **Versatile Applications:** Perfect for marine, automotive, and DIY projects.
- • **Effortless Installation:** Self-soldering technology ensures a strong, lasting connection.
- • **Unmatched Waterproofing:** Double wall design with hot melt adhesive for ultimate protection.

## Overview

The Sopoby 400PCS Solder Seal Wire Connectors offer a revolutionary solution for electrical connections, featuring a double wall waterproof design, heat shrinkable tubing, and premium solder seal rings. Ideal for a variety of applications, these connectors ensure durability and reliability in even the most challenging environments.

## Description

400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck

## Features

- BETTER WATERPROOF SOLUTIONS: Double wall design, Hot Melt Adhesive inside ensures wires strongly connected and prevent wires slipping from the terminal; Polyolefin outside tubing provides insulation and improves pullout strength
- PREMIUM SOLDER SEAL RING: Tubing reduces in size, the enough solder will melt and flow through the stripped wires, ensure a long lasting connection for your application
- ABRASION RESISTANCE HEAT SHRINKABLE TUBE: Premium tube materials are specially designed to be used in harsh environments. Protect the wires and cables from abrasion, cutting, scuffing and low impact situations
- EXCELLENT WIRE CONTACT: The tin barrel provides increased current flow, and ensures less voltage drop, preventing wiring failures and reducing equipment downtime
- WIDE APPLICATIONS: Excellent stability, water resistance and electrical conductivity provide durable connection for motorcycle, off-road vehicles, lawn tractors, RVs, fish finder and marine application. Widely used on multiple projects of your Christmas lights, ships with high waterproof requirements motorcycle stereo, boat electronics, equipment switches

## Product Details

- **Connector Type:** Butt Splice
- **Contact Material:** Copper
- **Insulation Material:** Polyolefin
- **Terminal:** Butt Terminal
- **Material:** Polyolefin

## Images

![400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck - Image 1](https://m.media-amazon.com/images/I/81F3VnE1EQL.jpg)
![400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck - Image 2](https://m.media-amazon.com/images/I/71nZ3j62dKL.jpg)
![400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck - Image 3](https://m.media-amazon.com/images/I/71gh29dmJUL.jpg)
![400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck - Image 4](https://m.media-amazon.com/images/I/71tM76gIv-L.jpg)
![400PCS Solder Seal Wire Connectors, Sopoby Self Soldering Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck - Image 5](https://m.media-amazon.com/images/I/71NGxZT-VeL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Really useful!
*by J***G on March 20, 2025*

These little things are amazing. I had never seen such a thing before I bought them. If you need to join two wires and have the connection be as strong and reliable as the wire itself (if not more so), these connectors are perfect. I've used so many of them that I had to buy more of the smallest ones (white and red). I use them all the time.

### ⭐⭐⭐⭐⭐ Reliable and Efficien
*by C***) on March 22, 2025*

I've been using these 400PCS Solder Seal Wire Connectors for various electrical projects, and I'm thoroughly impressed with their performance. Here's my take on how to get the best out of these connectors, following some trial and error and considering other reviews.Optimal Heat Setting: A crucial tip for anyone using these solder seal wire connectors is to set your heat gun to a precise temperature. I've found that 550 degrees Fahrenheit is the sweet spot. This temperature allows the solder to melt perfectly while also activating the glue without damaging the connector itself. It’s a critical step to ensure a strong, reliable seal.Application Technique: The technique you use during application significantly affects the outcome. Start by heating the outer portion of the connector where the glue resides. This approach secures the wire in place first, which prevents any slipping while you’re working on the solder. Once the outer sleeve is adequately shrunk and the wire is secured, you can then focus on melting the solder evenly around the wire. This method ensures a robust and evenly distributed connection.Performance and Reliability: These connectors are excellent for creating strong, weather-proof seals in wiring projects. Whether you're working on automotive wiring, marine electronics, or home repairs, these connectors provide a dependable solution. They save time compared to traditional soldering methods, and when done correctly, the results are both aesthetically pleasing and electrically sound.User Experience: I’ve noticed some reviews mentioning issues with melting or the connectors not holding well. From my experience, these issues are largely due to incorrect heat settings or application techniques. When used correctly, these connectors perform exceptionally well. Make sure to rotate the wire gently and evenly as you apply heat to distribute the solder and glue properly.Final Thoughts: Overall, the 400PCS Solder Seal Wire Connectors kit is a fantastic choice for DIY enthusiasts and professionals alike. They offer a quick, clean, and reliable method for connecting wires without the fuss of crimp tools or soldering irons. Just remember to use the correct heat settings and apply heat properly to achieve the best results.If you’re looking for efficient, reliable, and easy-to-use wire connectors, I highly recommend giving these a try. Just follow the tips for heating, and you'll likely find these connectors to be a game-changer in your electrical projects.

### ⭐⭐⭐⭐⭐ Perfect for being a truck driver
*by S***H on March 6, 2025*

Water proof and amazing quality and easy to use and would recommend getting like 2 or 3 boxes because when doing wiring you tend to use a lot!

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.vn/products/500563927-400pcs-solder-seal-wire-connectors-sopoby-self-soldering-heat-shrink](https://www.desertcart.vn/products/500563927-400pcs-solder-seal-wire-connectors-sopoby-self-soldering-heat-shrink)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-28*