CART (0)
BUY NOW
Free tracked shipping worldwide
Our Biggest Sales ends in
HRS
MIN
SEC
Our Biggest Sales ends in
HRS
MIN
SEC
FEATURED
SolderStick Waterproof Solder Wire Connector Kit
Our Biggest Sales ends in
HRS
MIN
SEC
Our Biggest Sales ends in
HRS
MIN
SEC
4.6 Stars | 5000+ Reviews 
Sale: Live for 24 Hours | 
Stock: 87 Kits Left
IP67 Waterproof
Sealed Performance
Weather Resistance
Free Worldwide Shipping
30 Day Money Back Guarantee
24/7 Customer Support
Enhanced Conductivity: Heavy-duty copper core ensures a strong crimp and superior conductivity.Waterproof Durability: Insert, crimp, heat – our kit guarantees robust, waterproof connections.One-Stop Kit for ALL wire sizes & typesMarine-grade connectors with a 3:1 shrink ratio for secure and waterproof seals.Versatile Across Industries: Durable, stable, and corrosion-resistantHigh-quality connectors that are easy to use and perfect for automotive, marine, and home electrical projects
Don't take our word for it, see what our customers have to say!
Applications
Boats
Automobiles
Home Wirings
Audio Systems
Electrical Project
Medical Device Assembly
Minimum Shrink Temp.
80°C / 176°F
Minimum Solder Melting Temp.
138°C / 280°F
Material
Dual-walled polyolefin tubing / Copper
Cable/Wire Sizes
Red:
22-16 AWG / 0.5-1.5mm2
Blue:
16-14 AWG / 1.5-2.5mm2
Yellow:
12-10 AWG / 4-6mm2
Applications Boats
Automobiles
Home Wirings
Audio Systems
Electrical Project
Medical Device Assembly
Why Solderstick?
Quick Secure Connections
Perfect for outdoor projects, it keeps your connections safe from moisture and corrosion.
Guaranteed Weatherproof
Its innovative design ensures a secure bond every time, making your projects smooth and efficient.
Easy To Use & Saves Time
Save time and effort with connectors that simplify your tasks without compromising quality.
Enhanced Safety
Reduce burn & hazard risks to ensure a safer working environment, while being 100% safe for electronics.
Fits All Projects
From automotive repairs to home improvements, it’s the go-to solution for any wiring challenge.
Lasting Reliability
With high-quality materials and construction, it delivers reliable connections that stand the test of time.
4 Simple Steps To Seamless Wire Connections
1
Prep Your Cables
Cut wires to size and insert into the butt connector
2
Crimp
Secure the connection by crimping the butt connector onto the wires tightly.
3
Heat To Seal
Apply heat to shrink the tube around the connection.
4
Enjoy Durable Connection
Enjoy your secured and waterproof wire connection!
Efficient, Reliable, and Waterproof
Step into a new era of wiring with our Butt Connector Kit – the epitome of efficiency and reliability.
Benefit from a seamless 4-step process for connecting wires effortlessly. Our kit ensures a 3:1 shrink ratio, providing high tensile strength and unmatched reliability.
Whether you are working on automotive, marine, or home electrical projects, these connectors make wiring simple and secure. Upgrade your wiring game with our Butt Connector Kit – where efficiency meets excellence.
Recommended By
Experts, Pros & DIYers
Our products are backed and used by professionals all around the world.
Robby Layton
The Bearded Mechanic
Born Again Boating
Robby Layton 
343K Subscribers
The Bearded Mechanic 414K Subscribers
Born Again Boating244K Subscribers
Find Out Why 50,000 CustomersLove SolderStick
Gabriel
Verified Buyer
Using a heat gun they provided and it was super easy to slip it on, twist the wires and slip it back on to solder and seal in one swoop is wicked cool! Very happy! Gave them
William
Verified Buyer
Work excellent! Seal AND solder wires together! I just hit them for about 15 seconds with my heat gun till shrink tube shrunk then solder melted to wire leads...boom, done!
Brad
Verified Buyer
This solder sleeve works exactly how it is described & kills two birds with one stone of soldering wire as well as sealing the connection. It is a huge time-saver.
Kevin
Verified Buyer
After about 5 seconds the rubber material started to shrink. At about 9 seconds the solder started to melt & bond the wires. I gave the wires a firm tug & there were super tight.
Frequently Asked Questions
A butt connector is a commonly used crimp connector in electrical work. It safely terminates wires or connects one wire to another by inserting the wire into the connector.
There are several types of butt connectors — such as standard butt connectors, heat shrink butt connectors, solder butt connectors, and environmental sealing butt connectors. Each is designed for different applications and levels of protection.
Select the right butt connector size based on the wire gauge you are connecting. The kit includes various sizes – yellow for smaller wires, blue for medium, and red for larger ones.
Absolutely! Our butt connectors are designed for versatility, though crimping techniques may vary slightly to ensure a secure connection. Whether you're working with solid or flexible conductors, the kit ensures reliable connections.
Yes, our butt connectors are waterproof and corrosion-resistant, making them ideal for outdoor applications. Use them with confidence in various weather conditions.
Absolutely! The Butt Connector Kit is versatile and suitable for automotive, marine, electrical, and electronic projects. With its durability and stability, it's a perfect fit for your automotive wiring needs.
While butt connectors are generally designed for one-time use, you can carefully reopen them if needed. However, using new connectors for optimal performance and reliability in your electrical connections is recommended.
Butt connectors are generally used for low to medium-voltage applications, but insulated connectors designed for copper cables can withstand higher voltages.
Always check the connector's specifications and rating to ensure suitability for your specific voltage requirements.
Yes, if you keep a reasonable distance from the exhaust components(such as pipes, manifolds, and turbo), then these are an excellent choice since they will keep the joint dry and make it far less susceptible to corrosion under the hood.
Our shipping typically takes 3-5 business days in the USA and 7-10 business days in other parts of the world.
If you are not completely satisfied, we are here to make it right.
We stand behind our products with a 90-day money-back guarantee.
Plus, our customer support team is always ready to assist with any questions or concerns.
Waterproof:Ensures a secure connection that is resistant to water and moisture, ideal for marine and outdoor applications.
Heat Shrink Tubing:Provides a tight seal and excellent...
Waterproof:Ensures a secure connection that is resistant to water and moisture, ideal for marine and outdoor applications.
Heat Shrink Tubing:Provides a tight seal and excellent insulation after heating, enhancing the durability of the butt connections.
Solder Seal Ring: Includes a low-temperature solder ring that melts and flows, ensuring a solid and reliable connection for butt splice wire connectors.
Transparent Sleeve:Allows for visual inspection of the connection to ensure proper insertion and alignment of wires.
Color-Coded: Different sizes are color-coded for easy identification and selection based on wire gauge for butt wire connectors.
Durable Material:Made from high-quality materials that resist corrosion and wear, ensuring long-lasting performance of butt wire connectors.
Easy to Use:Simple and straightforward installation process that requires minimal tools and effort.
Wide Range of Sizes:Available in various sizes to accommodate different wire gauges and connection requirements for butt splice wire connectors.
Strong Crimp:Provides a secure crimp that holds the wires firmly in place, preventing them from coming loose in butt connections.
Versatile Applications: Suitable for a wide range of applications, including automotive, marine, industrial, and home electrical projects.
Automotive Wiring: Ideal for connecting and repairing car electrical systems using butt wire connectors, ensuring secure and durable connections in vehicles.
Marine Electronics: Suitable for use in boats and other marine environments, providing waterproof and corrosion-resistant butt connections.
Home Electrical Repairs: Perfect for household electrical projects, such as fixing or extending wiring in appliances and fixtures with wire butt connectors.
Aerospace Wiring: Used in the aerospace industry for reliable and high-performance electrical connections, including butt wire connectors, in aircraft systems.
Industrial Equipment: Used in solar installations to connect and extend solar panel wiring securely with wire butt connectors.
Solar Panel Systems: Commonly used in both indoor and outdoor lighting projects to ensure safe and dependable electrical connections using butt splice wire connectors.
Lighting Installations:Commonly used in both indoor and outdoor lighting projects to ensure safe and dependable electrical connections.
180 Pcs
-50%
Save $30.00
360 Pcs
-38%
Save $30.00
540 Pcs
-30%
Save $30.00
30 Day Money Back Guarantee
