KESTER 2331-ZX Soldering Flux
Harmonization Code : 29051200 | Propan-1-ol (propyl alcohol) and propan-2-ol (isopropyl alcohol)

Main features
- Neutral pH
- Minimal foaming
- Low-odor emission
Product Description
Kester 2331-ZX solder lfux has an organic acid water-soluble chemistry, formulated specifically for soldering circuit board assemblies. Its neutral pH formulation delivers exceptional performance and cleanliness, making 2331-ZX a trusted choice across multiple industries.
Product Key Features
- Neutral pH formulation, ensuring ionic cleanliness.
- Minimal foaming
- Low-odor emission
- Classified as ORH1 per industry standards.
Applications
- Ideal for high-performance and sensitive circuit assemblies.
Note: Due to changes in REACH Regulations, this product is no longer sold into Europe or to European customers.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Additional Information
Flux Application
2331-ZX can be applied to circuit boards by a dip, foam or wave process. An air knife after the flux tank is recommended to remove excess flux from the circuit board and prevent dripping on the preheater surface.





















