Applications

KYZEN Aquanox® A4625 – Aqueous in-line cleaning solution for Pb-free and no-clean flux with mirrored solder finish

  • Item Name: Aquanox® A4625

  • Manufacturer: Kyzen Corporation

  • Soil/Flux Compatibility: Cleans all flux types including no-clean and lead-free residues, delivers mirrored solder finishes

  • Chemistry/Key flags: Biodegradable aqueous solution, non-hazardous, eco-friendly, low VOC, long tank life

  • Process/Equipment: In-line cleaning, batch washers, ultrasonic systems, stencil washers, vapor degreasers

  • Package Size: 1 gal, 5 gal, 55 gal, 5 L, 25 L, 200 L

  • Shelf Life: 5 years (≥5 gal / 25 L)

  1. Product Overview
    Aquanox® A4625 is a versatile aqueous in-line cleaning solution designed to remove lead-free and no-clean flux residues while providing brilliant mirrored solder finishes. It is environmentally friendly, non-hazardous, and biodegradable, with a long tank life suitable for multi-pass applications. With excellent material compatibility, low VOC content, and the ability to operate at low concentrations and temperatures, A4625 delivers efficient, cost-effective cleaning for advanced electronic assembly processes.

  2. Applications

  • In-line cleaning of electronic assemblies and components.

  • Effective on all flux types, including lead-free and no-clean residues.

  • Suitable for multi-pass applications while preserving solder finish quality.

  • Optimized for low-concentration, low-temperature operations to reduce cost of ownership.

  1. Typical Properties – Specifications

  • pH (10 g/L): 10.3–11.3

  • Boiling Point: 170°C / 338°F

  • Flash Point: 100°C / 212°F

  • Water Solubility: Complete

  • VOC (10% solution): 94.2 g/L

  • Operating Concentration: <15%

  • Temperature: <60°C / 140°F

  • Rinse: Hot deionized water recommended

  • Drying: Hot air

  • Storage: Store in polyethylene containers at 5–30°C (41–86°F); standard chemical handling practices required

  • Shelf Life: 5 years for sealed containers of 5 gallons / 25 liters or larger

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