How to Heat Solder Paste

Heating soldering paste is not a difficult process, but you must take care not to overheat the paste or it will not work properly. Soldering paste is used on materials that are delicate or require exact solder joints like jewelry. The paste is applied with a special syringe directly on the joint, but the heat from the soldering iron is focused on the joint to melt the solder into the damaged area. You can heat solder paste in less than a minute with the soldering iron.

Things You'll Need

• Solder paste
• Syringe
• Soldering iron

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Instructions

1. Apply a thin bead of solder paste along the joint or the area to be soldered with a syringe.

2. Let the soldering iron warm up so it is hot before placing it near the solder paste.

3. Heat the joint with the soldering iron for between 30 and 40 seconds until you see the paste turn to liquid.

4. Remove the soldering iron and turn it off. Allow the solder paste to cool and solidify.

Tips & Warnings

• To avoid burn injury, be careful of the hot soldering iron while heating the solder paste.

References

• Vimeo: Solder-It Aluminium Solder Paste Demonstration; David Hogg
• Pasternak Findings: Soldering Paste