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Finding The Best Solder Wire For Electrical Connections In 2021

Last Updated: 15 June 2021

Almost every electronic device whether it is a television or its remote possesses a printed circuit board inside it. Such boards clearly show neat item connections between the resistors, capacitors or so that is helpful in the understanding the path of current flow in it. So, if you encounter any working issues with these devices, it is quite normal to open up the device and examine or correct these board connections unless you see any physical damage in it.

Similarly, some of you might be enjoying an on-going electronics project. In fact, it requires the use of the product to join up different electrical components to make conduit work. Also, there are cases where you require solder for automotive wiring and plumbing purposes. Further, jewelry making involves the use of gold solder wire. Thus, all these instances necessitate the use of a good item that effortlessly and tidily does the job for you.

After a thorough analysis of users’ reviews, we prepared a list of the trending best solders 2019 that might guide you with the selection process of the item for electronic works..

Home Maker Guide created for informational purposes only. Thus, we neither endorse you in any way to buy specific products in our reviews, nor making you act like it’s written in our guides. We are reserving the rights for you to make your personal decision.



Editor-in-Chief of the Home Maker Guide
Know About the Acid and Rosin Core Solder

Top 10 Best Electrical Solder Wire : Comparison Table

Best Overall: Highest Quality - 60-40 Kester 44” Solder Wire Review

60-40 Kester 44” Solder Wire
853 Reviews
60-40 Kester 44” Solder Wire

Kester rosin core is a reliable model that finds its use in testing and repairing of different electronic products. It contains an alloy combination of 60 percent tin and rests 40 percent lead content. This lead solder renders advantage of strong joint filling, it doesn’t need any extra flux application, except its use on an oxidized or any contaminated type of circuit board. Further, this is a high temp tool that comes in various melting temperatures of 650F and 700F that, in fact, makes it suitable for any small, medium and large-sized circuit pads.

Why We Like It?

  • Kester wire of width 0.031” is appropriate for surface mount soldering and other through-hole filling purposes
  • Produces shiny solder joints that are resilient to vibrations and temperature changes.

Best Solder For Pcb PCB’s: 60-40 Tin Lead HGMZZQ Rosin Solder Wire Review

60-40 Tin Lead HGMZZQ Rosin Solder Wire Review
820 Reviews
60-40 Tin Lead HGMZZQ Rosin Solder Wire Review

It is a high-quality soldering wire that makes your working easier with its lower melting points at 361F or 183C. It has a flux diameter of about 0.039 inches which flows smoothly enabling you to braze in a really fast mode. Also, it is accessible at a different diameter which makes it excellent for guitar pedals.

Why We Like It?

  • Easy to use as it produces little amount of smoke when using it
  • Ensures even melting that offers pretty good flow to make beautiful joints
  • Applicable for almost all circuit board works and even household items.

Best Electrical Solder : 63-37 Tin Lead TREONYIA Rosin Core Solder Wire Review

63-37 Tin Lead TREONYIA Rosin Core Solder Wire
195 Reviews
63-37 Tin Lead TREONYIA Rosin Core Solder Wire

It represents the best item with great electrical insulation and non-oxidizing properties, the uniform heating characteristics of this wire make it so easy to use and apply. TREONYIA Rosin Core model has a diameter of about 0.0236 inches and offers low melting point temperatures of about 361F. This tool contains about 1.8 percent flux in it.

Why We Like It?

  • Only a minimum amount of smoke and residue are produced for each use
  • It does not give off any evil smell while soldering
  • Excellent ability to conduct heat and electricity
  • Appreciable flowability
  • Apt for home improvement applications and other circuit boards

Best Solder For Guitar Electronics: 63-37 Tin Lead Kester Rosin Core Solder Wire Review

63-37 Tin Lead Kester Rosin Core Solder Wire Review
288 Reviews
63-37 Tin Lead Kester Rosin Core Solder Wire Review

This Kester contains 63 percent tin and rest of 37 percent lead, it represents a highly active rosin core that enables tremendous soldering ability to perform metallization works. Also, it maintains an industry-standard core of 66 inches that has about 3.3 percent flux in it. A sucker accompanies this pack that aids you to do de-soldering activities at a really rapid pace.


  • Superior in quality
  • Easy to apply and offers potential strength to soldering connections
  • Never ball up while using
  • Odorless while heating up
  • Works well for DIY projects leaving clean joints with no splatter
  • Good for guitar electronics


  • Gets tangled in the spool

Best Rosin Core Solder For Beginners: 6 Pack AUSTOR Rosin Core Solder Wire Review

6 Pack AUSTOR Rosin Core Solder Wire Review
519 Reviews
6 Pack AUSTOR Rosin Core Solder Wire Review

This device comes in a small tube of plastic that protects it from outside dirt and moisture. The 60-40 combination of tin and lead imparts good electrical as well as thermal conductivity. The solder flux contains 2.0 percent of rosin core with a melting temperature varying between 365 to 374-degree Fahrenheit. You can use this model with any kind of soldering iron.


  • Compact
  • Thermal conductivity
  • Universal for any iron


  • Some tubes weigh less than prescribed amount of 20 gm

Best Solder For Automotive Wiring : 60-40 Tin Lead Sywon Rosin Core Solder Wire Review

60-40 Tin Lead Sywon Rosin Core Solder Wire
159 Reviews
60-40 Tin Lead Sywon Rosin Core Solder Wire

This tool of 2 percent rosin core has a melting point of relatively 376-degree Fahrenheit. It produces a nice blob when used with soldering iron and settles down easily. Compared to other models, this one is a strong and user-friendly model. Further, it assists you to align and secure small pieces of work together. However, make sure it cools up normally, and you have not disturbed these joints. Otherwise, cold solder joints may build up that is quite dull and weak in appearance.


  • Renders free joints that go deep into any surface to fill a lasting one
  • Works as the best solder for electronics
  • Usable as a plumbing solder too


  • A bit sticky in nature

Best Solder For Small Electronics: 60-40 Tin Lead WYCTIN Rosin Core Solder Wire Review

60-40 Tin Lead WYCTIN Rosin Core Solder Wire Review
2,422 Reviews
60-40 Tin Lead WYCTIN Rosin Core Solder Wire Review

Are you planning to do some small circuit soldering? Then, this model pack is right for you, you can even perform micro soldering with this decent roll pack. WYCTIN is one of the best models for electrical soldering. With a wire diameter of around 0.0236 inches, it offers a lower melting point of about 361 Fahrenheit. Further, this model design makes it possible to conduct electric current even at a low voltage setting.


  • It represents a good resin that easily sticks to a joint
  • Offers free-flowing nature to fill up holes
  • This is the best device for small electronics repair works
  • Wire is so flexible


  • Since strands are pretty thin, it is not recommended for big-scale soldering units

Best Lead Free Solder For Electronics : Sn-Ag-Cu Mudder Rosin Core Solder Wire Review

Sn-Ag-Cu Mudder Rosin Core Solder Wire” Review
868 Reviews
Sn-Ag-Cu Mudder Rosin Core Solder Wire” Review

Looking out for best lead-free solder option? Then, here it is. Mudder rosin core is an alloy that contains 98.9 percent tin, 0.29 percent silver, and the rest copper content. It includes 2 percent flux and is so easy to use at its high melting point of 419 to 428-degree Fahrenheit. Applicable for all fine-level electronics that require precise and thin soldering works.


  • Appreciable heat and current conductivity
  • This silver bearing solder produces fine and stable model without spluttering
  • Liquify evenly and consistently
  • Readily cools up


  • No shiny finish

Best Solder For Circuit Boards: 63-37 Tin Lead MAIYUM Rosin Core Solder Wire Review

63-37 Tin Lead MAIYUM Rosin Core Solder Wire
3,148 Reviews
63-37 Tin Lead MAIYUM Rosin Core Solder Wire

MAIYUM is a high-quality rosin model that contains 63 percent of tin and 37 percent lead. It offers a considerably low melting point of about 361-degree Fahrenheit. The flux content of this wire accounts for about 1.8 percent which means it flows smoothly for its applications on circuit boards and for another electrical repairing. You can double coat any joint with this liquid solder to avoid oxidation.


  • Evenly coats and strongly binds materials
  • Available at an affordable price
  • Free from bad odor
  • It lends clean joints


  • This model might clump up if heated for too long

Best Solder For RC Cars: C63-37 Tin Lead Tabiger Rose Core Solder Wire Review

C63-37 Tin Lead Tabiger Rose Core Solder Wire Review
74 Reviews
C63-37 Tin Lead Tabiger Rose Core Solder Wire Review

It is the best tool that comes with an extra two percent rosin. The tin-lead combination makes it perfect for electrical household works. It has a low melting point of around 361-degree Fahrenheit that is potentially good for smooth and fast soldering activities. The cases of rosin splash and smoke are minimum here.


  • Excellent for thin works
  • Never shows a tendency for rust formation
  • No compromise on quality and performance
  • It has nice wetting characteristics that ensures no roll-off while running the tip
  • No tin pest issues
  • Available at a really low price
  • Good for RC/electronics Hobbyists


  • It has little flux in it, so oxidation might occur

Buyer’s Guide: All You Need To Know About The Best Solder

There are some characteristics that you should look for while purchasing the best model for electronics.

How to Choose the Best Solder?


The ease of handling model demands one with a smaller diameter. However, for large works, you might need a significant length of item that, in fact, is a tedious and risky process. You can use

  • 0.49 mm diameter type for miniature SMD works
  • Around 0.69 mm diameter for connecting components leads.

Extend of Usability

Do items have an expiry date? Yes, and it is about three years from the manufacturing date. Even the paste does have a shelf life of six months. You can use it for a longer period say up to one year if refrigerated separately.

Best Solder Types

Identify the Flux Type:

The flux content serves many purposes like:

  • Allows item to flow onto the connections resulting in a clean joint
  • Alters overall surface tension of the product and makes it capable of adhering more to the metal.

The Three Varieties of Flux Accessible for Electronics Device Include:

  • Water-soluble type: after making item connections, you need to remove this flux which is an easy task. Primarily, wash the circuit under running warm water with a soft brush and followingly, rinse it with normal steam distilled water. Even you can even employ an ultrasonic cleaner for performing this task.
  • Rosin-core type: this is a flux formulated from the resin of a pine tree which is mildly corrosive in nature. Hence, it requires cleaning with isopropyl or isopropanol alcohol.
  • No-clean type: this flux does not require cleaning.

Understand the Solder Types:

Basically, there are three major types of item: lead, lead-free type and the silver alloy type. Of these, the lead-free type is safe for you and the environment, but it might create some technical issues while soldering.

  • Lead-free type requires a high temp of around 230-degree Celsius to melt whereas lead item melts easily around 180 degrees Celsius.
  • Lead item instantly settles to form joint while the lead-free type needs more care to avoid formation of cold model joints.

Know About the Acid and Rosin Core Solder

Know About the Acid and Rosin Core Solder

The melted item is not capable of naturally adhering to any metal surface and might tend to ball up in globs. Majority of the product contains a substance called flux that ensures smooth flow of product onto the joints.

While the one exploited for plumbing works is the acid core solder type, the electrical model includes rosin type of flux. The acid core is corrosive in nature that effectively removes the oxidation layer if present on the pipe surface and ensures a waterproof connection. Thus, using plumbing model in electronic circuits might degrade the whole wiring. On the other hand, using tin-lead alloy electrical model in connecting the pipes may deposit toxic lead in water which is really dangerous.

What Is a Cold Solder Joint?

If some disturbance affects the product settling connection, then the joint appears to be more like rough and frosted than the normal one. You can refer it to as a cold joint.

What Is a Eutectic Solder?

Eutectic model points to such model alloy which has a single low temperature for both melting and freezing. Further, as the temperature changes, it acquires a sharp transition between liquid and solid states. There exists no or minimum possibility for cold joint formation in these cases, for example, the 63/37 Tin-Lead alloy model has a melting and freezing temp of 183 degrees Celsius.

What Is a Low Heat Solder?


Some alloys items have a mix of a particular metal that lowers the overall melting point of the item. Such types will melt at low heat. For example, Sn-Pb-Ag model has a lower melting point due to the presence of silver. However, there is no compromise in other parameters like shear strength, wetting and fatigue resistance of this alloy item.

Best Solder FAQ

What is a Solder Used for?


For this, you need to understand importance of soldering initially. It is a process of creating a mechanical or electrical bond by precisely joining metal segments. Typically, people use a metal alloy of low melting point or model as a filler to initiate this binding process.

At first, you can melt item and apply it to the metal parts that require joining. As product solidifies, there forms a connection between the respective metal parts.

How Strong is Solder?

Item renders reliable and wiggle-free connections of tiny components in the electronic circuits. However, make sure you properly clean tips or leads of components to make it free from oxide coatings on the surface. Thereafter, bind component leads and apply some models on top to set up the tight mechanical or electrical connection.

Plumbing Solder vs. Electrical Solder. Is There a Difference?

Yes, there exists a considerable difference between plumbing and electrical model. While plumbing item uses bulky and heavy-gauge wire, one used for electronics is too thin and has a smaller gauge value.

At What Temperature Does the Best Solder Melt?

Normally, alloy used for electrical soldering contains

  • 60-40 of tin-lead combination and has a melting point ranging between 361-374-degree Fahrenheit. This is the best solder for stained glass when used along with copper foil assembly.
  • 63-37 of tin-lead that attains lowest MP of 361-degree Fahrenheit.
  • Lead-free type that has a melting point varying between 419 to 428-degree Fahrenheit.

Is Solder Conductive?


Of course!
In addition to establishing a strong physical connection between metals, item ensures an excellent path for conducting current from one part of the circuit to other.

Is Lead Solder Safe?

Lead model is safe for use in an electrical circuit. However, it poses a threat to the person who inhales fumes. It might affect neural membranes and respiratory system of humans. So, make sure you get only minimal exposure to these item fumes.

Solder Wire Quality Difference (Low vs High Quality)

What Is The Best Solder For Electronics - Verdict And Our Recommendation for 2021

There is a lot of items available in the market. However, opting for the best soldering kit, that suits your needs, is important. We have presented the list of the best solder here, all of them are great in use. But if you want to experience instant potential results, homemakerguide recommends you to get 60-40 Kester 44” Solder Wire. A great plus to this reliable tool is that it’s applicable to all circuit pads sizes.


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2 April, 2021
Guys what type of solder you use for motherboards?
2 April, 2021
to: Luis

For works with motherboard - adding/replacing size caps and resistors better use acid flux and 60/40 rosin core and 15-30w iron should be perfect
10 December, 2019
I have been absent for some time, but now I remember why I used to love this web site. Thanks, I will try and check back more frequently.