Kester 275 No Clean Lead-Free Solder 0.015 in
- 0.015 inch wire, 1 lb spool
- Sn96.5/Ag03/Cu0.5 lead-free alloy, as listed
- No-clean flux core, 275 series
- Melting point listed at 700 F
- Professional use
Last refreshed Sep 28, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An extra-fine lead-free solder from Kester with a no-clean flux core. The material field contradicts the lead-free title, so go by the stated alloy composition.
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ASIN: B00FGHTSH8Model: 275Category: Solder
Overview
A professional soldering user gets spooled wire with a lead-free blend of tin, silver and copper, plus a flux core that leaves residue needing no cleaning.
The composition and melting point are spelled out, which lets a buyer check the wire against an iron and a process. The limitation is that unrelated fields, such as style and material, carry errors.
Who it's for
Technicians who solder small joints and work to lead-free rules get a fine wire with the alloy named. Anyone who relies on the material or style rows should ignore them, since both contradict the title.
Pros and cons
- Lead-free tin-silver-copper alloy
- No-clean flux core
- Very thin wire
- Stated melting point
- Material field says lead
- Weight field is wrong
- Style field is unrelated
Performance notes
The alloy melts near the stated temperature, so the iron needs to be set above that point, and the flux core cleans the joint as it flows. A thin wire delivers small amounts of solder at a time.
Specifications
| Brand | Kester |
|---|---|
| Model | 275 |
| Dimensions & fit | |
| Wire diameter | 0.015 inches |
| Product dimensions | 2.5 x 2.5 x 2.5 inches |
| Capacity & performance | |
| Melting range | 700 F as listed |
| Construction & materials | |
| Material | Sn96.5/Ag03/Cu0.5, lead-free |
| Other details | |
| Flux content | 58 as listed |
| Use | Professional |
| Flux type | No-clean flux core, 275 |
| Form | Spool, 1 lb per title |
| Core Type | No Clean Flux Core |
| Sale Unit | POUND |
Frequently asked questions
Does the Kester 275 0.015 inch wire need any setup?
No assembly applies, since it is wire on a spool. The listing gives no iron temperature guidance beyond a melting point of 700 F.
Is this Kester 275 wire really lead-free?
Yes. The title and the stated composition both say lead-free, though the material field wrongly says lead.
What is the weight of the spool?
The title says 1 lb. The spec table's 0.01 ounces looks like an error.
What alloy does it use?
The description gives the composition as Sn96.5/Ag03/Cu0.5.