The SN-100MA solder bar is a high-purity, lead-free Sn99.3 alloy made for wave and selective soldering. It contains special micro-additives that improve wetting and cut dross in the solder pot. As a result, you get bright, reliable joints with less waste.

Why choose the SN-100MA solder bar?

Dross builds up in every solder pot and wastes costly metal. For this reason, this alloy is made to keep dross formation very low. That means less skimming, less waste and lower maintenance costs.

The micro-additives also speed up wetting and improve joint reliability. In addition, the alloy melts between 227 and 230°C, which gives a stable soldering process. Joints come out shiny and clean, much like traditional leaded solder.

Key features

• High-purity Sn99.3 lead-free alloy
• Melting range of 227 to 230°C
• Ultra-low dross generation
• Faster wetting and reliable joints
• Bright, shiny joint finish
• RoHS compliant
• 1 kg extruded bars for easy handling

Where to use the SN-100MA solder bar

This alloy suits lead-free production where pot efficiency matters. For example, it is ideal for:

• Wave soldering machines
• Selective soldering systems
• Complex, high-density PCB assemblies
• Lines looking to cut dross and waste

Because the 1 kg bars are easy to handle, topping up the solder pot is quick and simple.

Tips for best results

First, top up the pot little and often to keep the level steady. Next, skim dross regularly, even though there will be less of it. Then check the pot temperature against your process window. Finally, test the alloy in the pot from time to time to control impurities.

Need help with your soldering process?

OnBoard Solutions supplies soldering materials and equipment to electronics manufacturers across Australia. You can browse our full solder bar range or view our selective soldering systems. To learn more about soldering standards, visit the IPC website. Alternatively, contact our team to order the SN-100MA solder bar today.