* Disclaimer: OveReview is reader-supported. We earn commissions from qualifying purchases
340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes)

340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes)

340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes) 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes)
$ 29.99

Score By Feature

Based on 598 ratings
Weatherproof
9.60
Easy to use
9.52
Water resistance
9.28
Adhesion
8.70

OveReview Final Score

How Our Score Is Calculated

Product Description

Under the effect of the hot air gun, the high density solder ring melts to generate more solder to wrap the wires, increasing their electrical conductivity. This enables the wires to remain tightly connected and not move easily.
The connector is constructed from high-quality polyolefin materials that are resistant to corrosion and chemical attacks.
Solder connector containing sufficient glue - the solder connector contains sufficient hot melt adhesive for securing wires, as well as being weatherproof.
Fast and easy operation-With just the use of a heat gun, the wires can be tightly connected and secured.
We are here to help you if you are dissatisfied with your purchase. Please let us know. Providing customers with 100% Satisfaction Guarantee and 12-month replacement warranty, we offer a 30-day money back guarantee and a 12-month replacement warranty!

Questions & Answers

How thick is the wire that these connectors are made from?

A total of 4 sizes are available. Within the period of 18/20-12/14

Instead of using a heat gun, can you use a small torch to solder this?

This has been my experience, but I've had a very limited amount of For most heat shrink applications, a torch will be just fine, but to provide even heat at the right temperature, you need to make sure it penetrates into the connectors. With a torch, you might get the solder flowing properly, but you'll likely burn the heat shrink. You might get a few connections ruined, but you're unlikely to have the solder flow right the first time. There's just too much concentration of heat applied on the outer surface too fast when using a torch. These connectors can act exceptionally well, but they are a little tricky to use correctly. An emergency torch would not be a good idea.

In cars, they cannot connect if they don't have rosin. What kind of rosin are these?

There is a flux coating on the solder ring. You can get it to flow as long as you temperate it correctly and make sure I just dip the end of the wire into rosin paste flux, then apply a little heat with the heat gun to melt it into the wire. Liquid flux might work too, but I just use rosin paste flux. Generally, small gauge wire works fine just the way it is, but larger gauge wire seems to give a little more benefit with a little flux added. As you might imagine, it only makes sense because the smaller the cross section of the wire, the more copper that needs to be coated and therefore the longer the time it will take for the heat Heat shrink does need a little practice to get the temperature just right so the solder flows easily, but the heat shrink shouldn't be overheated. It is easy to learn how to use them for automotive wiring once you've got the hang of it. My tests have been based on cutting scrap wire open to verify a good connection and then conducting some trials with it. There is a definite difference between a good heat gun and a bad one. Featuring adjustable heat and curved deflectors for wiring, this connection tool can help make connections that are perfect. Using them for the first time requires some patience, and I strongly suggest trying some practice connections before you To make good connections with a soldering iron you need some practice. You will not be disappointed if you do the same with these. In addition to managing heat in regular soldering, it is essential to maintain a good connection between two pieces. It can be easy to make sloppy mistakes.

Is it possible to fix some wires on a pick up with the help of this product?

This stuff is as good as Mil-spec for repairing automotive wires, it works in an excellent manner Solder sleeves that conform to SPEC standards.

Selected User Reviews For 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes)

The temperature needs to be just right in order for the work to be effective
5/5

Heat shrink tubing will destroy before it gets hot enough to melt solder if we use a flame. The glue and tubing shrank and the solder melted, but not the solder itself. In the end, I used a much bigger, more luxurious heat gun with adjustable, regulated temperatures. The heat shrink seemed to work pretty well at about 700 degrees without destroying it at the end of rolling it up slowly to over 600 degrees F. It began to melt at over 600 degrees F. There is a chance one can get the hot melt to melt at a lower temperature and still get a soldered joint, but the wire may not grab well. To ensure that neither the wire nor the solder gets overheated, you need to allow cold air to penetrate deeply enough to heat both, without getting the outer surface so hot that the shrink portion becomes Heat shrinkable crimp sleeves may be faster, but they will leave a much nicer slim profile, which will be an advantage when splicing multicoloured cables The cables that carry conductors. Originally, these were supposed to be designed as pre-fab It appears to be lightly coated with flux, although it is fairly noticeable. I would like to see the solder flow just a bit better, and a dab of rosin flux on the joint seems to help. Likewise, I think that twisted junctions work just a little bit better than just poking the strands together, because it seems to wick solder just a bit more effectively. As a result, these are good for building a very reliable connection that is also To do them well, however, it takes a good deal of time and the right amount of heat. If you are looking for a heat gun with good regulation and a high output, you need a good one,.

Oaklee Valdez
Oaklee Valdez
| Jun 24, 2021
I would not recommend this product My experience with a similar product during my time in the Navy led me to buy these
3/5

After finally getting my hands on these, i found them to be very disappointing. In terms of the heat sink component of the product, the components are very nice, but the solder component is very crummy. I tried using a heat gun, butane torch with hot air tip, and a bic lighter to melt the solder but I was unable to get it to flow smoothly. worked to get the solder to melt and flow into the wires properly. I tested it with bare copper, the pre-treatment A flux paste was applied to the tinned areas. There was only one time when the solder came close to completely melting. It occurred when the heat shink was so hot that the solder melted through it and escaped. This is not a good sign.

Julieta Franco
Julieta Franco
| Jan 12, 2021
It is a very good I bought this kit from a friend who asked me to do some wiring on his motorcycle for him
5/5

In fact, I bought a kit for myself after being so impressed. I twisted the wires together then added the Sauter over the exposed wire, then I melted the whole connector with a heat gun so it has the same effect as heat shrink and it makes a great weatherproof seal.

Clayton Foster
Clayton Foster
| Jun 22, 2021
There can never be a return to the old ways
5/5

I used this product to connect my radio harnesses in half the time than I expected it to take.

Katie Singh
Katie Singh
| Oct 08, 2020
It is great that these things exist
5/5

This is great, now I don't have to melt other car parts while I fix wiring this is quick and easy! No more heating up the electric soldering iron, because it is simple to turn on the mini torch, turn it on, and in a few seconds it is done!.

Emmeline Harrison
Emmeline Harrison
| Feb 19, 2021
Worked like a charm
5/5

I found it to be very useful. It took a couple of tries to get the heat just right, but it A seal that keeps water out. My boat's power trim wires were shorted out by water entering through faulty connections after a new motor was installed. I used this to terminate the defective connections through the new trim motor. You can no longer drink.

Noelle HOPE
Noelle HOPE
| Mar 18, 2021
It's easy to connect
5/5

They were exactly as described. This was my first time using solder seal connectors. I like how quick and easy it is to connect, and how well it seals. People who don't have all the skills and confidence to solder connections manually (like me) will love this product. It covers multiple wire sizes with a variety of connector sizes in one kit, a great way to buy everything you need at once.

Rosalee Jennings
Rosalee Jennings
| Apr 04, 2021
This is the theory of food
3/5

There was nothing wrong with the low temp soldering but I rather liked how the Allender cover flowed a little better and was.

Leland Huffman
Leland Huffman
| Jul 02, 2021

Related Products For 340PCS Solder Seal Wire Connectors-haisstronica Marine Grade Heat Shrink Wire Connectors-Butt Splice Wire Terminals for Marine,Electrical with Corrosion and Weatherproof(5Colors/5Sizes)