
When Solder Fails, Innovation Stalls. Brilliant Designs Begin with Kester.

Cold joints, inconsistent wetting, and post-reflow cleanup headaches are all-too-familiar productivity killers. If your solder materials are dragging down your process, it's time for a better solution. Kester solder is engineered to outperform, with proven chemistries that deliver clean, strong, and reliable connections from first pass to final inspection. Whether you're dealing with delicate medical assemblies, mission-critical aerospace boards, or high-throughput consumer lines, Kester helps you solder like you mean it. With formulations that reduce spatter, eliminate rework, and leave minimal residue, Kester doesn't just make your job easier — it makes your outcomes better. Because great soldering shouldn't feel like a gamble.
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Kester 24-7068-7601 Solder Wire, No-Clean, Lead-Free, SAC305, 275 Series
Less Spatter. More Spark. Zero Clean-Up Drama.

Say goodbye to smoky benches, crusty joints, and surprise rework. Kester's 275 Series SAC305 solder wire is your no-nonsense, no-clean solution for serious electronics work. With fast wetting, low spatter, and nearly invisible residue, it sticks where it should and disappears where it shouldn't — no IPA scrubbing required. Whether you're chasing production deadlines or just sick of flux gunk, this lead-free, RoHS-compliant wire brings clarity and reliability to your process. That's why the pros don't just solder—they Kester.
Kester NP505-HR Solder Paste, No-Clean, Lead-Free, T4, SAC305, 600g Cartridge
No Voids. No Mess. No Rework Rage.

If your solder paste falters under pressure, it's time for an upgrade. Kester NP505-HR is built for brutal conditions and elevated expectations — handling fine-pitch components, long idle times, and unpredictable temperatures with ease. This zero-halogen, no-clean, high-reliability paste cuts down QFN and BGA voiding, shrugs off graping, and leaves behind clean, stable residues. Whether you're printing 01005s or managing multi-shift production, NP505-HR delivers consistency, clarity, and confidence in every pass. It's the kind of paste that doesn't just survive your process — it makes it better.
Kester 2331-ZX Organic Water-Soluble Soldering Flux, ORH1, 1 Gal
Clean Boards. Fewer Headaches. No Nasty Surprises.

Tired of flux that stinks, foams, or fries your solder masks? Kester 2331-ZX brings high activity without the drama. Its neutral pH chemistry delivers industry-leading ionic cleanliness, tackles icicling and bridging, and rinses away without residue or reliability risks. No harsh odors and no extra scrubbing — just clean, consistent performance engineered for compatibility with FR-4 laminates, solder masks, and standard cleaning systems. For high-reliability assemblies where performance is non-negotiable, 2331-ZX keeps your process smooth, controlled, and confidently clean.