We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Solder Gun?

By John Sunshine
Updated Feb 07, 2024
Our promise to you
WiseGeek is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGeek, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A Solder gun is also known frequently as a soldering iron, though in truth a solder gun is really a particular type of soldering iron. A solder gun is among the largest of the soldering iron types and has a pistol shape. It is used in electrical wiring work to join materials, usually wires, together using solder. Solder is a lead tin alloy that has a fairly low melting temperature and good corrosion resistance properties.

The solder gun has a trigger, which when activated allows the working end of the iron or gun to get hot. This hot tip is then placed in contact with the material to be joined together. The material is now allowed to get hot and then solder is added. The solder is a solid at room temperature but will flow like a liquid when the temperature is elevated by the solder gun. The solder will flow amongst the materials to be joined and coat it evenly if done properly. The solder gun is then removed and the solder is allowed to cool. Once cool, the joint should be mechanically and electrically sound and last for a very long time.

Solder guns come in different sizes and temperature ratings. Since even the smallest solder gun is still quite large, for very delicate work, a pencil shaped soldering iron is more appropriate. Use a solder gun for electrical work and a pencil shaped soldering iron for electronic work.

The temperature of the solder iron tip is also important. Solder comes in different compositions, and different compositions have different melting temperatures. The melting temperature of the solder should match the temperature rating of the soldering iron. With the recent push in many countries to remove lead from industrial materials, solder composition is changing so that less lead is used. As less lead is used the melting point of the solder increases. If you are thinking of purchasing a solder gun, you will want to be aware of this. You would not want to purchase a solder gun that will soon be obsolete.

Solder guns should not be used with copper plumbing. The solder used in copper plumbing is of a different composition than that used in electrical work. A suitable soldering iron or propane torch should be used when making soldered connections with copper plumbing.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

Discussion Comments

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.