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The VALUE COLLECTION 1429760RAP30311 is a rosin activated alloy solder designed for electrical and electronic soldering applications. Supplied in a 1-pound spool, this 21-gauge wire solder features a 66-core flux construction that delivers consistent flux distribution throughout the join. The rosin activated flux core cleans oxide from metal surfaces during the soldering process, promoting strong, low-resistance electrical connections. This type of solder is a standard choice for licensed electricians, electronics technicians, and HVAC controls specialists working on wiring harnesses, circuit boards, and terminal connections.
This solder is suited for general-purpose electrical soldering in both residential and light commercial service environments. The 21-gauge diameter makes it well-matched for fine-pitch work such as control board repair, relay terminal soldering, and low-voltage wiring connections. The rosin activated flux chemistry is appropriate for use on copper and copper-alloy surfaces commonly found in HVAC control circuits, electrical panel work, and electronic component servicing.
Designed as a general-purpose rosin activated solder for use on copper and copper-alloy electrical connections in residential and commercial applications.
Soldering should be performed by a qualified electrician or electronics technician following applicable NEC guidelines. Always de-energize and lock out the circuit before soldering any live electrical connection. Use appropriate ventilation when working with flux-core solder, as rosin flux fumes can be an irritant. Allow joints to cool undisturbed before applying any mechanical stress or re-energizing the circuit.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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