Kester 63/37 Rosin Core Solder Wire 1LB Spool, 0.031 Diameter

High-Quality Solder for Everyday Electronics Projects

Make soldering easy with the Kester 63/37 solder wire spool a trusted choice for home repairs, electronic builds, and DIY projects. This solder wire is designed for easy use, smooth flow, and strong connections, making it ideal for beginners and experienced hobbyists alike.

Why Choose Kester 63/37 Solder?

Kester rosin core solder is well-known for its excellent performance and reliability. The 63% tin and 37% lead blend (eutectic alloy) melts quickly at a low temperature, delivering better control and less chance of cold joints. Whether youre working on circuit boards, small electronics, or audio cables, youll get clean results every time.

Product Features & Benefits

• Easy-to-Use Diameter: 0.031 (0.79mm) is perfect for general-purpose soldering and electronics repair.
• Reliable Rosin Core: “44” RA (Rosin Activated) core ensures good wetting and minimal splatter, so you can work cleaner.
• Eutectic 63/37 Alloy: 63% tin / 37% lead mix guarantees a sharp melting point (183C / 361F), minimizing errors and making your work easier.
• Large 1 Pound Spool: Get more solder for your projects perfect for frequent users and makers.
• Consistent Performance: Trusted by electronics enthusiasts for smooth flow, strong joints, and no-hassle soldering.

Technical Specifications

• Alloy composition: 63% Tin (Sn) / 37% Lead (Pb)
• Diameter: 0.031″ (0.79mm)
• Weight: 1 Pound / 16 oz / 454g
• Flux core: “44” RA Rosin Activated
• Melting point: 183C (361F)
• Package type: One-pound spool
• Kester part number: 24-6337-0027

Perfect For:

• Electronic repairs and circuit board soldering
• DIY and maker projects
• Prototype assembly
• General electrical work

Get Reliable, Professional-Quality Soldering at Home

With the Kester 1LB 63/37 rosin core solder wire, you dont need to be a pro to get professional results. Experience a solder that flows easily, forms strong connections, and is trusted worldwide. Upgrade your soldering with Kester today.