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Waterproof Solder Wire Connector Kit - Single Sizes
4.6 Stars | 5000+ Reviews
Sale: Live for 24 Hours |
Stock: 87 Kits Left
IP67 Waterproof
Sealed Performance
Weather Resistance
In stock - Ships On Monday, December 23
Selling Fast: 43 Kits Sold In Last Hour
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Free Worldwide Shipping
30 Day Money Back Guarantee
24/7 Customer Support
Quick and Easy: Just use a heat gun—no crimping or soldering needed!
IP67 Waterproof Seal: Strong adhesive rings keep connections secure and moisture-free.
One-Stop Kit for ALL wire sizes & types
Fits Anywhere: Flexible design works great in tight or hard-to-reach spaces.
Boats, cars, home DIY, audio setups, electrical projects
Certified Quality: Meets strict automotive standards for reliable performance
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
White:
26-24 AWG / 0.25-0.34mm2
Red:
22-16 AWG / 0.5-1.5mm2
Blue:
16-12 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
Strip your wire insulation 1/3" on both wire ends & twist the strands together.
2
Insert & Connect
Use SolderStick Sleeve to connect the wires together with the right connector size.
3
Heat To Seal
Apply heat with a heat gun, lighter or blow dryer while continuously rotating the wire.
4
Enjoy Durable Connection
Enjoy your secured and waterproof wire connection!
No Guesswork :
Find The Right Size Fast
With our color-coded tubing, picking the right connector for any job is a breeze. Just match your wire to the chart on the box—quick match, no hassle.
SolderStick Vs Tape
VS
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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 solder wire connector is a heat shrink tube with a low-temperature solder ring in the middle. It connects solder wires without the need for specialized tools.
Both sides of the solder ring have a ring of heat-activated adhesive that creates a seal when heat is applied.
You can get it here. Simply select the kit size and color, and you are done! We will ship single-size wire connectors depending on the connector size you pick.
The Solderstick waterproof solder wire connector kit includesvarious sizes of solder wire connectorsdesigned to create waterproof and durable wire connections.
You can definitely use a small butane or propane torch instead of a heat gun! However, you should not get it too close since you can over-melt the shielding if you are not careful.
Absolutely! Whether you are working with copper, aluminum, or a mix of materials, SolderStick connectors are designed to provide a strong, reliable connection across a variety of wire types.
Yes, these connections are weatherproof. However, remember to heat both ends of the sleeveto create a lasting watertight seal.
SolderStick connectors can accommodate wire sizes up to 10 AWG. For specific projects, refer to our sizing chart to find the perfect fit for your needs.
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.
Yes, Solderstick connectors are also ideal for outdoor use! Our waterproof design ensures connections stay protected against the elements, making them perfect for garden lighting, outdoor sound systems, and more.
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.
Below are the product features of our waterproof solder wire connector kits.
Complete Kit: Our kits can contain up to 500 pieces of wire connectors in different sizes, allowing you to use them in numerous projects.
Color-Coded: Our wire connectors come in four colors to make finding the size you need easier. They come in white (AWG 26-24), red (22-18...
Below are the product features of our waterproof solder wire connector kits.
Complete Kit: Our kits can contain up to 500 pieces of wire connectors in different sizes, allowing you to use them in numerous projects.
Color-Coded: Our wire connectors come in four colors to make finding the size you need easier. They come in white (AWG 26-24), red (22-18 AWG), blue (16-14 AWG), and yellow (12-10 AWG).
Quick and Easy Connection: Once you have prepped your wires, you only need a good heat source to connect them.
Can Be Used By Anyone: Solderstick’s solder wire connectors can be used by professionals or DIYers, regardless of the project.
Reliable Performance: Our solder wire connectors ensure a secure and long-lasting connection once you have properly sealed them.
The Solderstick waterproof solder wire connector kit can be used in various applications.
Automotive Wiring: Solder wire connectors can connect and repair car electrical systems, ensuring they can withstand vibrations and harsh driving conditions.
Marine Electronics: You can use these connectors even in environments that experience harsh weather conditions.
Home Electrical Projects: Our solder wire connectors are simple enough for enthusiasts to use at home for domestic electrical projects.
Industrial Equipment: Solderstick’s solder wire connectors are also durable enough to be used in professional settings.
Lighting Installations: Waterproof solder wire connectors can ensure safe and stable connections, whether indoors or outdoors.
DIY Projects: These connectors do not require special tools to use.
Sound Systems: Solder wire connectors can be used in sound systems without compromising performance or quality.
HVAC Systems: These connectors can provide secure connections in HVAC systems without sacrificing performance and efficiency.
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