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Solder paste is one of the most important components in the manufacturing of electronic components via PCBs (printed circuit boards). Many people have asked themselves what is solder paste, and what is its purpose? This blog provides information about solder paste, and its uses and importance with respect to PCB assembly and why it is critical to the electronics industry.

The most popular question asked both by new and experienced users when they solder is: Do you need flux for solder wire? In order to fully answer this question we will go over the basics of what solder wire actually is, what flux is, as well as how they are both typically used together. By the time you finish reading this article you will have all of your questions answered as to if the solder wire that you're working with requires flux, how to select the best type of solder wire for you, and many other useful tips for successful soldering.

We are excited to announce that our company will participate in Productronica China 2026, from 26 to 28 March, 2026 at Shanghai New International Expo Centre. 

When it comes to soldering, one of the most debated topics among professionals and hobbyists alike is the choice between 63/37 solder and 60/40 solder. Both alloys are widely used in electronics and other industries, but which one is better? In this article, we’ll compare their properties, advantages, and applications to help you make an informed decision.

QLG Solder is pleased to share a significant milestone in our company’s growth, we open a new plant dedicated to the chemicals, including high-quality the flux, cleaner and conformal coating, further enhancing our ability to serve the electronics and advanced manufacturing sectors.

Low-temperature solder wire is a specialized type of solder designed to melt at significantly lower temperatures compared to standard solder alloys. This technology is particularly valuable in applications where heat-sensitive components, delicate substrates, or specialized materials are used. 

As electronic devices continue to evolve toward higher performance, smaller dimensions, and greater environmental exposure, the need for advanced protective materials has become more critical than ever. 

QLG Policy regarding : "conflict minerals (Dodd–Frank Wall Street Reform and Consumer Protection Act, Section 1502)"