Soldering is an integral process of many industries, including electronics, electromechanical, medical equipment, automotive and many more. For many years, lead-solders were used in these industries because they suited the conditions at that time. The tin-lead solders have a predictable and low melting point, transitioning from solid to liquid quickly in solder operations. There were other advantages, such as absorption of mechanical stress, vibration and thermal expansion. However, there are many drawbacks and serious concerns regarding lead-based solders. It poses a great risk for humans as well as the environment. That’s why many industries are now switching to Leadfree solder bars. We at Bajaj Insulation Co. serve our customers with dependable solders bars free of toxic chemicals like lead. In this blog, we are sharing our insights on why lead is harmful and why leadfree alternatives are better.
Why Lead is Toxic
Before we get into the benefits of Leadfree solder bars, we need to understand why lead is toxic. While it makes soldering easy, lead causes numerous health hazards. It affects the nervous system and may result in memory loss, reduced concentration, and delayed nerve response. To those operating the solder, it can enter the body through the air and replace essential minerals such as calcium, iron, and zinc. For the environment, it is dangerous because it is non-biodegradable and interferes with the natural habitat. Therefore, lead is prohibited from use in solders.
Benefits of Leadfree Solder Bars for Industries
Safer Workplace
Leadfree solder bars ensure a safe workplace for technicians and operators working in the industrial setup. By eliminating the hazardous effects of lead, the workers are not exposed to lead fumes or residues during melting, wave soldering, or routine handling.
Improved Engineering
Solder bars composed of tin-copper or tin-silver-copper are developed with improved engineering for making consistent joints. These are accompanied by flux, which controls wetting and enhances joint integrity. When the process is clearly established, it results in reliable continuity across repeated cycles.
Compatible With Production
Solder bars from trusted brands deliver dependable performance in continuous production settings. Their melting behaviour is predictable, with a stable composition to support the automated soldering and high production rate without interruptions.
Positive Brand Perception
By using leadfree solder bars, manufacturers improve their brand perception among their customers, contract partners and other buyers. This reflects their environmentally-conscious approach and safety-driven practice.
RoHS Compliance
The RoHS Directive (Restriction of Hazardous Substances) has set strict limits on the use of lead in soldering processes. Companies that stay within these limits receive a RoHS compliance certificate, which is highly valuable.
Conclusion
Lead is a hazardous chemical with many toxic properties. Its toxic fume in soldering created many health problems, and its decomposition in the environment is also too difficult. Therefore, it is mandatory to avoid using leaded solders. If you want Leadfree solder bars, choose Bajaj Insulation Co. We provide multiple compositions of tin-copper and tin-silver-copper in multiple variants, along with No-clean and rosin core flux type. These varieties suit the vast industrial soldering operations.
