Solder bars, solder paste, and solder wire – Which should be used? 

Types of solder tin materials on the market today are popular in 3 forms solder bars, solder paste, and solder wire. So which is the best to use? Follow the article below to find out!

Similarities Between solder bar, solder paste, and solder wire 

solder bar, solder paste, and solder wire all have similarities in composition and product classification.

In terms of composition, mainly tin metal (Sn) is mixed with other metals such as lead (Pb), silver (Ag), copper (Cu), Nickel (Ni), germanium (Ge), Bismuth (Bi),… according to a certain ratio. Usually, the tin content in the product will account for 70-90% of the weight. In addition, there are some fluxes but the proportion of ingredients is not large.

In terms of product classification, solder bar, solder paste, and solder wire are divided into two main categories: leaded and lead-free. Accordingly, the lead type is composed of tin-lead alloy in the ratio of 63/37 (63% tin and 37% lead) or 60/40 (60% tin and 40% lead). The other type is lead-free, mainly composed of tin metal and mixed with some other metals such as silver, copper, nickel, etc. in different proportions.

View more: Solder Paste

View more: Solder Bar

What difference between solder bar, solder paste, and solder wire 

Solder bar, solder paste, and solder wire have some differences as follows:

Solder bar 

Solder bar is a form of solder bar material produced in a solid state, the packaging specification is in the form of a long cylindrical bar, and the product surface has silver gray.

Solder bar products are suitable for use in automatic wave soldering and dip soldering. During this process, the solder bar will be melted in the solder pot to form a liquid solution. After that, it is taken to the next stage of application.

Solder paste

Solder paste, also known as lead cream, solder lead cream, or electronic circuit solder paste, … is a type of soldering material produced in the form of /wet Solder paste. Packaging is usually in a jar or plastic box. When using, just stir well and spread on the surface to be soldered without having to melt like the other 2 types.

Because it is made in the form of a solder paste for high adhesion and accuracy. Therefore, solder paste is mainly used in SMT automatic surfacing welding lines and reverse welding techniques. It is also used with automatic solder paste robots in other electronic circuit assembly lines.

Solder wire 

Solder wire, also known as solder wire, or tin wire… is a form of solder wire material produced in the form of small wire wrapped around a coil. The core for winding the wire is a plastic core.

The characteristic of solder wire is that the wire has a certain length and diameter. So it can be used with an electric or laser torch while soldering electronic components. 

In particular, solder wire can also be used in automatic wave soldering or in the process of repairing electronic circuits with soldering irons and soldering stations.

Should I use a solder bar, solder paste, and solder wire?

Solder bar, solder paste, and solder wire all have their own unique properties and uses. So, depending on the needs of each business and industry to be applied, people consider choosing the right type of soldering material.

If customers still do not know which materials to use, they can immediately contact Thetech. This is the address to provide genuine and quality soldering materials with a team of well-trained, professional staff who thoroughly understand each type of soldering material, ready to advise and support solutions. Respond to all customer inquiries immediately.

View more: Solder Wire

Above are the similarities and differences between solder bars, solder paste, and solder wire. Hopefully, through this article, you know what kind of soldering material should be used for your industry and needs.