October 23, 2026 Kester 282 Cored Wire Technical Overview
Kester 282 Cored Wire is a mildly activated rosin flux-cored solder wire engineered for high-reliability electronics assembly, manufactured by Kester. Formulated with high-grade WW rosin and a precise amount of activating agent, it delivers enhanced soldering performance where plain rosin is insufficient and highly activated fluxes pose electrical conductivity risks.
Key Features of Kester 282 Cored Wire
Designed to balance improved wetting speed with strict dielectric insulation requirements, this cored solder wire provides several performance benefits:
- Mildly Activated Rosin (RMA) Formulation: Combines Grade WW rosin with an effective activating agent for reliable oxide removal on difficult assemblies.
- IPC ROL1 Classification: Classified as Type ROL1 per IPC ANSI/J-STD-004 specifications (formerly Type RMA under MIL-F-14256).
- Electrically Inert Residue: Leaves a post-solder residue that is practically as non-conductive as unactivated plain rosin flux.
- High Water Extract Resistivity: Features negligible ionic content to ensure long-term circuit stability and prevent stray current leakage.
- Environmental Resistance: Post-soldering rosin residue is non-corrosive, non-conductive, and resistant to moisture and fungal growth.
- No-Clean Processing Compatibility: Residue forms a protective insulating barrier against atmospheric corrosion, making post-solder washing unnecessary for standard applications.
Processing & Cleaning Guidelines
Because the post-solder rosin residue is dry, non-corrosive, and electrically inert, cleaning is generally not required. However, if residue removal is specified for cosmetic or downstream testing requirements, the rosin residue can be completely washed away using specialized cleaning agents such as Kester 5240 Rosin Residue Remover or Kester 5768 Bio-Kleen Aqueous Saponifier.
Conclusion
In summary, Kester 282 Cored Wire offers reliable RMA performance and inert post-solder residue for delicate electronics. For technical data or purchasing details, please reach out via Contact – LORIOT INDUSTRIAL.
Technical Specifications
| Parameter / Property | Specification Details |
|---|---|
| Product Type | Mildly Activated Rosin (RMA) Flux-Cored Solder Wire |
| Rosin Grade | High-quality Grade WW Rosin |
| IPC J-STD-004 Flux Classification | Type ROL1 |
| Former Military Classification | Type RMA per MIL-F-14256 |
| Residue Characteristics | Non-corrosive, non-conductive, moisture & fungus resistant, electrically inert |
| Ionic Residue & Conductivity | Negligible ionic content; very high water extract resistivity |
| Recommended Cleaners (Optional) | Kester 5240 Rosin Residue Remover or Kester 5768 Bio-Kleen Aqueous Saponifier |
