October 23, 2026 Kester 245 Cored Wire Technical Overview
Kester 245 Cored Wire is a no-clean flux-cored solder wire engineered for electronics assembly, manufactured by Kester. Designed to complement low-residue liquid flux formulations, this wire chemistry utilizes principles derived from mildly activated rosin fluxes to deliver exceptional soldering efficiency with visually acceptable assemblies without post-solder cleaning.
Key Features of Kester 245 Cored Wire
Engineered to combine reliable joint formation with minimal post-soldering maintenance, this cored solder wire offers several operational advantages:
- Minimal Residue Chemistry: Leaves a minimal, non-tacky residue post-soldering, eliminating the need for wash cycles.
- High Post-Solder Reliability: Formulated for high surface insulation resistance and stable long-term dielectric performance.
- J-STD-004 ROL0 Classification: Categorized as Type ROL0 under J-STD-004 specifications, ensuring zero halide activity.
- Alloy Versatility: Fully compatible with both traditional lead-bearing and modern lead-free solder alloys.
- Former Military Specification: Formerly classified as Type LR per MIL-F-14256 standards.
- RoHS Directive Compliance: Meets Directive 2011/65/EU requirements when paired with lead-free alloy compositions.
Application Scope & Reliability Performance
The specialized flux formulation matches the spreading and wetting speeds of traditional mildly activated rosin core wires while leaving negligible post-process residue. It successfully passes Silver Chromate test standards, confirming the absence of active halides that could cause long-term circuit corrosion or electrical leakage.
Conclusion
In summary, Kester 245 Cored Wire provides minimal residue and reliable joint performance for electronics manufacturing. For pricing or technical details, please reach out via Contact – LORIOT INDUSTRIAL.
Technical Specifications
| Parameter / Property | Specification Details |
|---|---|
| Product Type | No-Clean Flux-Cored Solder Wire |
| J-STD-004 Flux Classification | ROL0 |
| Former Standard Classification | Type LR per MIL-F-14256 |
| Alloy Compatibility | Lead-Bearing (Leaded) and Lead-Free Alloys |
| 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 | Pass (Tested per J-STD-004, IPC-TM-650, Method 2.3.33) |
| RoHS Compliance | Compliant with Directive 2011/65/EU (with lead-free alloys) |
