October 22, 2026 Kester 48 Cored Wire Technical Overview
Kester 48 Cored Wire is an activated rosin flux-cored solder wire designed for lead-free and leaded soldering applications, manufactured by Kester. Building upon the performance of Kester 44, it provides rapid wetting on common metals with performance characteristics exceeding standard RA fluxes.
Key Features of Kester 48 Cored Wire
Engineered to maximize assembly efficiency and operator comfort, this cored wire delivers a range of operational benefits:
- Unparalleled Wetting Performance: Delivers instant-action wetting for fast, predictable solder joint formation across various surface finishes.
- No-Clean Efficiency: Eliminates the need and expense of post-solder cleaning processes in standard electronics manufacturing workflows.
- Low Spattering & Low Smoke: Minimizes flux spatter on target assemblies while emitting low smoke and minimal odor during hand or automated soldering.
- IPC ROM1 Classification: Classified as ROM1 per J-STD-004 standards, balancing high chemical activity with controlled corrosion resistance.
- Alloy Flexibility: Optimized for lead-free applications while remaining fully compatible with traditional leaded alloy systems.
Process Performance & Technical Considerations
The advanced chemistry of this activated rosin formula improves solder flow on challenging oxidized surface finishes. Its low spatter characteristics help keep PCBs and assembly tooling clean, reducing maintenance downtime and improving first-pass soldering yields.
Conclusion
In summary, Kester 48 Cored Wire delivers instant-action wetting, low spatter, and reliable ROM1 performance. For technical support, pricing, or product availability, please reach out via Contact – LORIOT INDUSTRIAL.
Technical Specifications
| Property / Parameter | Specification Details / Test Result |
|---|---|
| Product Type | Activated Rosin (RA) Flux-Cored Solder Wire |
| J-STD-004 Flux Classification | ROM1 |
| Copper Mirror Corrosion | Low (Tested per J-STD-004, IPC-TM-650, Method 2.3.32) |
| Corrosion Test | Low (Tested per J-STD-004, IPC-TM-650, Method 2.6.15) |
| Silver Chromate Test | Fail (Tested per J-STD-004, IPC-TM-650, Method 2.3.33) |
| Post-Solder Cleaning Requirement | No-Clean (Cleaning not required) |
| Spatter & Smoke Level | Low Spattering, Low Smoke & Odor |
