Things you need to know about solder paste

Solder paste is another important solder material in the soldering of electronic components besides solder wire and solder bar. So what properties does this solder have? How many types of solder paste are there? The following article will help you learn more about this type of solder.

Overview of solder paste

What is solder paste?

Solder paste is a mixture of alloy granules mixed with solder solvent in a certain ratio and then produced as an ultra-fine cream. It is known that the composition of solder alloy powder accounts for 80–90% of the product volume.

Compared with solder wire and solder bar, the biggest advantage of tin solder paste is that you do not need to melt it before using it. This will make the process of soldering components easier, less time-consuming, and less laborious than before.

View more: Solder Paste

View more: Solder Bar

Properties of solder paste

Solder paste possesses the following advantages:

• The ability to wet and adhere to the surface of the material is extremely good.
• High oxidation resistance for welds that are always shiny with time
• High-stability cream helps ensure the desired quality of welding results.

Classification of solder paste

Solder paste is currently divided into two main types: lead-based solder paste and lead-free solder paste. Accordingly:

Lead solder paste: Solder paste is mixed mainly from 2 metals, tin, and lead, in the ratio of 60% tin and 40% lead, or 63% tin and 37% lead. In some countries, this type is restricted because it contains lead elements, which, when soldered, will produce toxic fumes that are dangerous to human health.

Lead-free solder paste: As the name suggests, the composition of this solder paste will not contain lead elements that are dangerous to human life. Instead, the manufacturer will use some other elements to replace them, such as copper, silver, nickel, etc. A standard form of lead-free solder paste commonly used today is 96.5% tin, 3% silver, and 0.5% bronze.

How do you store solder paste?

Solder paste needs to be stored in a cold place between 2 and 10 degrees Celsius. Note that when taking out the solder paste from the freezer, it should not be used immediately. It must be left at room temperature for about 2 hours before use.

When using, it is necessary to stir the solder paste for about 2–3 minutes so that the solder paste returns to its original state.

After opening the cap, the solder paste is still there; just close the cap as usual, and when you need to use it again, open it.

The address that provides reputable, quality, and good-priced solder paste

Solder paste is an important material in soldering electronic circuits. Therefore, it is impossible to use fake or poor-quality products. Finding an address that provides quality and reputable solder paste is something that many companies, factories, and enterprises are interested in today.

If you still don’t know where to buy solder paste, you can come to Thetech! We are a supplier of chemicals and materials used in manufacturing electronic components, including solder paste, solder bars, solder wire, flux, and electronic cleaner,… Best price in the market.

All of our products are imported directly from the manufacturer, without intermediaries, so we can control the origin of the product. Thereby helping customers receive genuine products of the best quality.

In particular, with a team of dedicated consultants and a high discount for customers buying in large quantities, this is the address to buy solder paste that you should choose.

View more: Solder Wire

Above are the characteristics and classifications of solder paste. Hopefully, through this article, everyone can understand more about this type of solder. If you have a need to buy solder paste in bulk, please contact The tech for advice and a specific quote!