8 Things You Need To Know About How To Solder Wires To A Circuit Board

How To Solder Wires

Before we could indulge in some meaningful conversation, maybe I should tell you more about soldering wires and how to solder wires. What do you need to solder wires? Ok! 

From our analysis, we are going to show easy ways on how you can solder wires at the comfort of your home.

That sounds sweet, doesn’t it? Probably a yes.

Soldering wires is quite simple and does not involve tedious process. After hours of tiresome research, we have outline simple and easy steps to fix this. Flux being one of the essentials in soldering wires, it helps in the reduction of oxides that form when hot metals are in contact with air.

Since you will be dealing with electricity and sharp objects, you should take necessary precaution when soldering wires. Below are the eight simple steps for wire soldering.

Steps on How To Solder Wires 


Make a slight incision on the wire jacket using a pair of wire strippers or razor blade. Also, determine the size of the solder wire and use a sized hole to carefully strip the wire. Similarly, test the holes in the strippers to determine the one that cuts into the jacket without interfering with the wire.

In addition to that, clamp down the wire with the right sized hole and rotate it at 90 degrees.


Pull the unwanted jacket off the wire through the use of clippers or your fingers. Once the jacket becomes loose the material is removed without foregoing the copper threads.

Then cut a piece of shrink tube and slide it onto one of the wires which should be longer than the area to be soldered. Also, the shrink tube should cover some end of the jacket and the connection being made.

Similarly, one may test the shrink tube on a piece of wire before commencing to ensure the tubing will shrink down to the required size of the wire.


Flay both a half the pieces of copper wire to make a good connection. The effective way requires flaying each end of the wire through rubbing the wire between your fingers.

Markedly, push the flayed ends into each other where the copper wires should be slightly intertwined. Twist and smooth the strands into each other so as that they hold together.

The main purpose is to ensure the separate copper strands look alike. Soldering commences at this point where the shrink is fitted over the joint.

how to solder wire to metal

Add the solder flux into the connection through the use of your finger or utensil. The flux helps in the soldering flow into the wires thus many connections ensure easier soldering process is carried out.

Commence with a little glob on your finger and brush it onto the wire then heat the wires which will soak up this flux. To solder, the wires heat the flux into the wire using a heat gun or a blow dryer.

The blow dryer produces sufficient heat to melt the flux,and this can be done through moving it back and forth. Overheating the jacket causes it to melt but ensure the shrink tube does not receive direct heat to avoid unnecessary damages.


Attach the right tip to the iron thus a large-sized tip is essential to ensure enough heat is transferred to the larger wires. Medium sized tips are mostly used for soldering wires where the applied heat melts the jacket.

However, one should not touch anywhere above the handle of the iron with bare hands. Screwing off the barrel is one way the iron tips can be attached,but the iron should be off for safety purposes.

Replacing of the tip while the iron is on can be dangerous since the metal attached to the soldering iron will be very hot.


Turn on the solder box when ready for use and keep off the flammable objects from the iron. Markedly, when the iron is not in use the solder box should be off. Thus add water to the sponge below the soldering iron holder for cooling purposes.

The sponge is thus used to clean the tip of the iron. Pick up some solder with the iron hence this process is easy for smaller wires. This process can be done by touching the iron tip about an inch from the end of the solder string.

Automatically the iron should soak the solder right onto the top of the iron which allows one to focus solely on the iron. Different sized wires will require a different amount of solder.


Apply the iron with the solder to the copper wire with flux. To avoid leaving the heat source on during soldering one should smoothly wave the iron back and forth along the copper.

Thus keep on picking up more solder with the iron and adding it to the joint until the wires are full. Then inspect the joint where the wires should be fully joined.

If the solder does not flow properly, then the back side of the connection may have lacked enough solder to join the wire thus weak connection.

However, a slight tug on the wires can be used to ensure effective bind.


Cover the joint or soldered connection using a shrink tube and electrical tape. Slide the shrink tube over the joint and apply heat to the area by waving the heat source back and forth.

This process ensures less direct heat is impacted on the jacket. The shrink tubes are clean and do not leave cement residue thus are mostly used in soldering of wires.

In conclusion, how to solder wire is a sequence of steps that are used to ensure effective work is done and the wires are properly joined. The instructions have various cautions that should be considered in preventing any damage or injury incidents. Usage of right materials ensures wires are properly soldered.

Willie Ryan

Wille Ryan is a tool expert from the U.S. He is a Mechanical Engineer and uses tools almost every day at home and at work. He enjoys helping people to master everything about a wide range of tools through blogging. He is for sure a Tools Guardian!

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