---
product_id: 27283107
title: "50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow)"
brand: "sopoby"
price: "€ 16.13"
currency: EUR
in_stock: true
reviews_count: 8
category: "Sopoby"
url: https://www.desertcart.hr/products/27283107-50pcs-solder-seal-wire-connector-sopoby-solder-seal-heat-shrink
store_origin: HR
region: Croatia
---

# Double-wall waterproof seal with hot melt adhesive Solder melts at 138℃ for seamless fusion Abrasion-resistant polyolefin tubing 50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow)

**Brand:** sopoby
**Price:** € 16.13
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with soldered strength and waterproof confidence!

## Quick Answers

- **What is this?** 50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow) by sopoby
- **How much does it cost?** € 16.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/27283107-50pcs-solder-seal-wire-connector-sopoby-solder-seal-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

- • **Versatile for All Your Projects:** Perfect for automotive, marine, off-road, and even holiday lighting setups—connect with confidence.
- • **Effortless Pro-Grade Connections:** Solder ring melts precisely to create a durable, maintenance-free bond every time.
- • **Optimized Electrical Performance:** Copper tin barrel ensures superior current flow, reducing voltage drop and downtime.
- • **Unmatched Waterproof Reliability:** Double-wall design with hot melt adhesive locks out moisture and prevents wire slippage.
- • **Rugged Durability for Harsh Environments:** Premium abrasion-resistant tubing shields your wiring from cuts, scuffs, and impacts.

## Overview

The Sopoby 50pcs Solder Seal Wire Connectors combine precision soldering with a double-wall waterproof design and abrasion-resistant polyolefin tubing. Rated for 240V and temperatures up to 257°F, these connectors deliver reliable, long-lasting electrical connections ideal for automotive, marine, and industrial applications. With color-coded gauges and a tin-plated copper barrel, they ensure optimal conductivity and durability in demanding environments.

## Description

50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow): desertcart.com: Industrial & Scientific

Review: Easy repair - Used them the other day for my extension cord. Worked great
Review: Nice connectors, but have to be done right to make them work - I like these connectors so far. It takes just the right type of procedure to get them to work. What I have done is to strip (proper size wire) the wires about 1/12 inch and insert the wires from both ends until the wires touch the insulation on each other leaving them bare wires exactly in the middle. Twisting for me did 2 things I didn't like. In most instances, it made making close connections very hard to do, and the other thing is that twisting the wires also most time made the wires bundled that way a bit too large to safely and easily pull the connector over them. letting the wires either naturally slide past each other or into each other made for the best results. The next thing that is required is to get a good quality heat gun and hold it about1.5 to 2 inches ways and heat while moving it back and forth. Heat from at least 2 different angles and the solder will melt properly, the sealer will spread out and the casing will shrink properly and provide a hold that is very difficult to pull apart. I used probably close to 50 lbs. of force and could not pull wires apart. Let the connections cool a bit before moving them around. If you have more force than 50lbs on your wires you need to do something to relieve that stress. These are not for every type of connection or for every place a connection is needed, but given the proper space and type of wire, these work far more effectively than I expected them to.

## Features

- 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
- 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
- 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
- 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
- EXCELLENT WIRE CONTACT - The tin barrel provides increased current flow, and ensures less voltage drop, preventing wiring failures and reducing equipment downtime

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01DPS8DPM |
| Best Sellers Rank | #18,418 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #135 in Butt Terminals |
| Brand Name | Sopoby |
| Color | Red, Blue, White, Yellow |
| Connector Gender | Male |
| Connector Type | Butt Splice |
| Contact Material | Copper |
| Customer Reviews | 4.6 out of 5 stars 8,250 Reviews |
| Gauge | AWG 26-10 |
| Included Components | 1 |
| Insulation Material | Polyolefin |
| Insulation Material Type | Polyolefin |
| Item Dimensions L x W x H | 4.72"L x 2.36"W x 0.5"H |
| Manufacturer | Sopoby |
| Material | Polyolefin Tubing with Solder inside |
| Material Type | Polyolefin Tubing with Solder inside |
| Maximum Voltage | 240 Volts |
| Model | Sopoby207 |
| Number of Items | 1 |
| Part Number | Sopoby207 |
| Specification Met | ① Minimum Shrink Temperature: 80℃, ② Minimum Temperature for Solder to Melt: 138℃ |
| Temperature Rating | 257 degree fahrenheit |
| Terminal | Butt Terminal |
| UPC | 635902526435 |
| Unit Count | 50.0 Count |

## Product Details

- **Color:** Red, Blue, White, Yellow
- **Connector Type:** Butt Splice
- **Contact Material:** Copper
- **Insulation Material:** Polyolefin
- **Terminal:** Butt Terminal

## Images

![50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow) - Image 1](https://m.media-amazon.com/images/I/71ug6eNOqtL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What temperature should someone use to melt the solder but not burn the waterproof plastic/shrink wrap?**
A: I USED LOW TEMP SETTING ON MY HEAT GUN..  BUT I WATCHED CLOSELY TO SEE WHEN THE SOLDER MELTED AND PROMPTLY REMOVED HEAT. WORKED WELL.

**Q: Is this what I'd use to wire my KC lights to the stock fog lights wiring?**
A: Yes, solder seal wire connectors are an excellent choice.

**Q: is it possible to connect 3 wires together with these?**
A: Hello friend, thank you for your question.
We are sorry to tell you that 3 wires could not be connected with one of these solder butt connector. It would be better for you to connect 2 wires with one connector. Hope this would help you. 
If you have any additional questions, please feel free to let us seller know. We would try our best to assist you. Thanks:)

**Q: can you use a lighter or torch on these?**
A: lighter most cases. torches usually make too much heat.  It will take a little while (and a few damaged connectors) to get a hang of it.  too much heat burns the connectors.  not enough and the solder does not melt.  light and steady heat shrinks connectors and melts the solder.  thicker wires are a little trickier as they take more heat to melt solder.  this does take a little bit of time than crimping but the results are worth it.  I used this for my boat rewire.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy repair
*by K***M on April 2, 2026*

Used them the other day for my extension cord. Worked great

### ⭐⭐⭐⭐⭐ Nice connectors, but have to be done right to make them work
*by S***E on November 11, 2022*

I like these connectors so far. It takes just the right type of procedure to get them to work. What I have done is to strip (proper size wire) the wires about 1/12 inch and insert the wires from both ends until the wires touch the insulation on each other leaving them bare wires exactly in the middle. Twisting for me did 2 things I didn't like. In most instances, it made making close connections very hard to do, and the other thing is that twisting the wires also most time made the wires bundled that way a bit too large to safely and easily pull the connector over them. letting the wires either naturally slide past each other or into each other made for the best results. The next thing that is required is to get a good quality heat gun and hold it about1.5 to 2 inches ways and heat while moving it back and forth. Heat from at least 2 different angles and the solder will melt properly, the sealer will spread out and the casing will shrink properly and provide a hold that is very difficult to pull apart. I used probably close to 50 lbs. of force and could not pull wires apart. Let the connections cool a bit before moving them around. If you have more force than 50lbs on your wires you need to do something to relieve that stress. These are not for every type of connection or for every place a connection is needed, but given the proper space and type of wire, these work far more effectively than I expected them to.

### ⭐⭐⭐⭐⭐ Really neat product, worked great
*by J***F on February 6, 2019*

I read a bunch of the reviews and took a chance that this lived up to the hype and it really does. It was super easy to join all the wires in the cable harness that I was working with. I was easily able to push the one wire through and then the other from the other side, have them mingle in the center and then hold it over my upright heat gun and just watch the heat shrink tubing and then the solder seal up the joint. It was beautiful and made a strong and water tight seal (not that water tight was really anything I needed to worry about), just like a regular soldered joint and heat shrink, but without a two step process. The only thing I needed to be careful of is that the whole thing is still a bit gooey when you take it away from the heat gun, so letting it cool a few seconds before applying any accidental lateral pressure kept from making a mess. Connected about 30 pairs of wires in about 30 minutes without having my hand hurting from crimping connectors over and over again. Love this, would totally order it again, and as some others mentioned, the box was surprising small and compact. Really great, highly recommend, but you definitely want to have a heat gun.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-12*