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Kester TSF-6592 tacky soldering flux – advanced no-clean formulation designed for BGA reballing, rework, and assembly, providing strong tackiness, excellent wetting, and reliable solder joint formation with minimal residue.

  • Item Number: TSF-6592

  • Manufacturer: Kester®

  • Flux Type/ Chemistry: No-clean tacky flux

  • Viscosity/ Form: High-viscosity tacky flux (paste form)

  • Activity/ Classification: IPC J-STD-004 classification ROL0

  • Packaging: Contact to Techniq VN for details.

  • Shelf Life: Contact to Techniq VN for details.

1. Product Overview

Kester TSF-6592 is a high-performance solder paste flux, formulated to deliver exceptional wetting and reliable solder joint formation. Designed for fine-pitch and high-density surface mount assemblies, it ensures consistent process stability and minimal defects. This flux is halogen-free, environmentally compliant, and engineered to leave minimal, non-corrosive residues, making it suitable for advanced electronics manufacturing.

2. Applications

TSF-6592 is ideal for reflow soldering in surface mount technology (SMT) applications, including QFPs, BGAs, and other fine-pitch components. Its excellent tackiness and rheology make it suitable for stencil printing, selective dispensing, and rework processes, ensuring precision and reproducibility in high-volume production.

3. Typical Properties – Specifications

  • Flux Type: Tacky, halogen-free

  • Viscosity: Optimized for stencil printing and dispensing

  • Residues: Minimal, non-corrosive, suitable for no-clean processes

  • Compatibility: Works with a wide range of leaded and lead-free solder alloys

  • Reflow Performance: Maintains robust activity under both standard and lead-free reflow profiles

  • Storage: Keep refrigerated to maintain flux performance and consistency

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