---
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: "110 kr"
currency: DKK
in_stock: true
reviews_count: 11
category: "Sopoby"
url: https://www.desertcart.dk/products/27283107-50pcs-solder-seal-wire-connector-sopoby-solder-seal-heat-shrink
store_origin: DK
region: Denmark
---

# Double-wall waterproof seal 138℃ solder melt temp Abrasion-resistant polyolefin 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:** 110 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with confidence—seal the deal like a pro!

## 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?** 110 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/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

- • **Rugged Durability:** Abrasion-resistant polyolefin shields connections from harsh environments and mechanical wear.
- • **Seamless Solder Fusion:** Melts at 138℃ for a flawless, permanent electrical bond every time.
- • **Versatile Multi-Use Kit:** 50 connectors in 4 color-coded sizes, perfect for automotive, marine, RV, and off-road projects.
- • **Professional-Grade Reliability:** Copper contacts ensure superior conductivity and minimal voltage drop for long-lasting performance.
- • **Ultimate Waterproof Protection:** Double-wall tubing with hot melt adhesive locks out moisture and prevents wire slippage.

## Overview

The Sopoby 50pcs Solder Seal Wire Connector kit features heat-shrinkable, double-wall insulated terminals with built-in solder rings that melt at 138℃, creating waterproof, abrasion-resistant, and electrically reliable splices. Ideal for automotive, marine, and industrial wiring, this kit offers 4 color-coded sizes with copper contacts to 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: Excellent quality splices that have worked perfectly every time. Fast, easy and safe method of splicing all types of wireing. - Great quality and nice variety of sizes. I bought these to have them on hand for when I need them which when you are living and travelling full time in a 5th wheel is pretty much anytime something stops working it seems everything is somehow tied to electrical in one of these and because it's like a earthquake in the trailer every time you move it things break and come loose fairly often. I've used several of these already and love having them onboard because every time I've used one the outcome has been perfect the melt exactly like they should using my 1500 watt hot air gun all you have to do is strip and short piece of each wire end your using first insert one wire end into the splice and melt the splice onto the wire, insert the other wire end into the open end of the splice and again melt the splice with a hot air gun or other heat source the metal center of the splice will complete the circuit making the wire whole again that's it it's not hard at all. I've had great success with these in the trailer and in my pickup I use to tow the 5th wheel I don't see running out of these anytime soon but when and if I do I will be buying more just like these from this seller.
Review: So easy to use. - This item makes my work look and function very professional. I have already bought more to refill the more common sizes.

## 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 | #14,059 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #92 in Butt Terminals |
| Brand | Sopoby |
| Color | Red, Blue, White, Yellow |
| Connector Gender | Male |
| Connector Type | Butt Splice |
| Contact Material | Copper |
| Date First Available | April 1, 2016 |
| Department | Mens |
| Insulation Material | Polyolefin |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5 ounces |
| Item model number | Sopoby207 |
| Manufacturer | Sopoby |
| Material | Polyolefin Tubing with Solder inside |
| Maximum Voltage | 240 Volts |
| Number of Items | 1 |
| Product Dimensions | 4.72"L x 2.36"W x 0.5"H |
| 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/41pMjUCdPIL.jpg)
![50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow) - Image 2](https://m.media-amazon.com/images/I/513NUsGPCwL.jpg)
![50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow) - Image 3](https://m.media-amazon.com/images/I/51590qyBIAL.jpg)
![50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow) - Image 4](https://m.media-amazon.com/images/I/51Lx48blC+L.jpg)
![50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow) - Image 5](https://m.media-amazon.com/images/I/51MUZI3OCTL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Excellent quality splices that have worked perfectly every time. Fast, easy and safe method of splicing all types of wireing.
*by I***S on February 16, 2018*

Great quality and nice variety of sizes. I bought these to have them on hand for when I need them which when you are living and travelling full time in a 5th wheel is pretty much anytime something stops working it seems everything is somehow tied to electrical in one of these and because it's like a earthquake in the trailer every time you move it things break and come loose fairly often. I've used several of these already and love having them onboard because every time I've used one the outcome has been perfect the melt exactly like they should using my 1500 watt hot air gun all you have to do is strip and short piece of each wire end your using first insert one wire end into the splice and melt the splice onto the wire, insert the other wire end into the open end of the splice and again melt the splice with a hot air gun or other heat source the metal center of the splice will complete the circuit making the wire whole again that's it it's not hard at all. I've had great success with these in the trailer and in my pickup I use to tow the 5th wheel I don't see running out of these anytime soon but when and if I do I will be buying more just like these from this seller.

### ⭐⭐⭐⭐⭐ So easy to use.
*by D***T on September 29, 2025*

This item makes my work look and function very professional. I have already bought more to refill the more common sizes.

### ⭐⭐⭐⭐ Great product with a little learning curve
*by J***Y on October 25, 2019*

It was my first time using these and overall they're a great product. The included sizes worked great for my car audio application where I was connecting 2-3 22-18ga wires. I used my Wagner heat gun to shrink and solder, which worked well overall. There was a bit of a learning curve, some tips or instructions would have been welcome. The biggest issue I had was the solder would take long enough to melt that the heat shrink would start to melt thru a bit exposing some of the wire connection. Not enough to matter for my application, however. I found that I had to frequently rotate the piece as I heated it to prevent the melt thru. Other than that, great product and will now be my go to for any wire connection.

## Frequently Bought Together

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-29*