Waterproof wire connections in 30 seconds.
No iron, no crimping.
Free shipping on all orders · 30 day money back guarantee
Revolutionize your wiring with SolderStick heat shrink solder connectors. Fast, reliable, and waterproof for automotive, marine, and Home DIY applications.
343K Subscribers
414K Subscribers
244K Subscribers
30 Day Money Back Guarantee
Sale: Live for 24 Hours |
Stock: 87 Kits Left
FREE ProShield Heat Shrink 492pcs Pack ($49 Value)
FREE Precision Wire Stripping Tool ($39 Value)
FREE AstraBeam™ Penlight ($29 Value)
30 Day Money Back Guarantee
Free Worldwide Shipping
30 Day Money Back Guarantee
24/7 Customer Support
SolderStick outperforms traditional soldering and inferior connectors with fast, secure, and waterproof connections—no soldering iron needed.
Made from premium materials, our connectors provide stronger bonds, better conductivity, and long-lasting durability in any environment.
30 Day Money Back Guarantee
SolderStick™
Crimp Connectors
Sealed against heat, vibration and damp under the hood.
IP67 sealed, so salt water can’t creep into the splice.
Stands up to road spray, mud and highway vibration.
A soldered joint for a clean, solid signal to your speakers.
Landscape lighting, LED strips and workshop projects.
30 Day Money Back Guarantee
Customer Reviews
“I had rats chew through some wiring on my car used these and they work fantastic! All you got to do is just strip the wire put the wire in and use a Bic lighter to heat up the whole thing evenly and then that's it you're done. Repeat buyer”
“I have many years of experience in automotive and this is by far the easiest solder tool I've yet to use. Simply cut the wires, strip them of the plastic and joint them in the connector. I used a simple heat gun and with 30 seconds I was done. I measured the wire before the repair and got .3 ohms after the repair I measured again and got .2 ohms. I pulled on the wires with lots of pressure and they wouldn't let go. Great product!!!”
“I was skeptical about it. But I was surprised with how strong they hold a connection. Made a loop with 2 connectors on 16g wire, it's as strong as the wire itself. All in all, it made a great connection, if done right. It picked up 30 lbs. Easily. (I covered the connector on one, just to see what it would look like heat shrinked in black.) Current flows properly. Definitely better than regular butt connections. I'll be buying more.”
30 Day Money Back Guarantee
A crimp is a metal barrel squeezed onto the strands. SolderStick melts a ring of solder into them, so the two wires become one piece of metal. Then the sleeve shrinks down and seals over the joint. There is nothing to work loose under vibration.
No. Strip the wires, push them in from each side and apply heat. No crimper, no die set, no soldering iron, and no soldering experience.
Yes. A heat gun is the easiest to control, but a lighter or small butane torch will do it. Keep the flame moving around the sleeve rather than holding it on one spot, and stop once the solder has flowed and the tubing has drawn in tight.
Yes, once both ends are properly heated. The sleeve is lined with adhesive that melts and seals against the wire insulation at each end, so there is no open path for water to wick in. That is what makes it suitable for boats, trailers and outdoor lighting.
The colours are sized by wire gauge. White fits 26–24 AWG, Red 22–16 AWG, Blue 16–12 AWG and Yellow 12–10 AWG. 10 AWG is the largest wire these will take.
Yes. Copper, aluminium, solid or stranded, and joints between two different wire types all work.
Yes, keeping a sensible distance from exhaust pipes, manifolds and the turbo. The sealed joint is built for heat cycling, vibration and damp, which is where an unsealed crimp tends to corrode first.
3–5 business days in the USA, and 7–10 business days everywhere else.
If you are not completely satisfied, we will make it right. Every SolderStick product is covered by a 30-day money-back guarantee, and our support team is there if you need them.
30 Day Money Back Guarantee
When it comes to electrical installation, it is much easier to remember situations more routines, such as turning on a lamp or plugging in an appliance. But actually, it has...
When it comes to electrical installation, it is much easier to remember situations more routines, such as turning on a lamp or plugging in an appliance. But actually, it has...
Considering how many appliances are in a building, it is important to ensure that your electrical system is always in good condition. And one of the biggest challenges that could...
Considering how many appliances are in a building, it is important to ensure that your electrical system is always in good condition. And one of the biggest challenges that could...
Wire splicing is common for a professional in the electrical field, whatever the follow-up is, but perhaps because they don’t have the necessary knowledge of how to splice wires and...
Wire splicing is common for a professional in the electrical field, whatever the follow-up is, but perhaps because they don’t have the necessary knowledge of how to splice wires and...
30 Day Money Back Guarantee
