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Solid Solder Wire
Solder wire is a metal alloy designed to join components through heat. When melted, it wets the contact surfaces and cools to form a strong electrical and mechanical bond.
Solid solder wire has no internal flux core, so flux must be applied separately during assembly. It’s available in both leaded and lead-free options, with various alloy compositions and diameters to suit different applications.
At ConRo, we supply a wide range of solid solder products from leading brands such as Indium, ensuring consistent quality and traceability.
Leaded vs. Lead-Free Alloys
Growing environmental and health awareness has led to the adoption of lead-free alternatives. These use alloys such as tin–silver–copper (SAC) that melt at slightly higher temperatures but offer excellent reliability and compliance with RoHS regulations.
Solid and Flux-Cored Options
Different solder types suit different conditions. Neither solid nor flux-cored versions are universally better—the right choice depends on the application.
- Solid solder provides clean joints on thin materials and in controlled environments.
- Flux-cored wire contains built-in flux that simplifies work outdoors or where additional flux application isn’t practical.
In electronics manufacturing, flux-cored products are often preferred for convenience, except where a specialised flux must be applied separately. When using solid material, flux can be added by brush, bottle, or pen dispenser.
