PCB Defluxing & PCB Cleaning Applications

Ultrasonic PCB defluxing helps remove post-solder flux residues and lowers ionic contamination—improving reliability and reducing field failures. Suitable for SMT, through-hole, mixed-technology boards and selected rework cleaning.

Flux residue removal Lower ionic contamination Better coating / bonding Repeatable process
Common Electronics Cleaning Use-Cases

Choose the closest application. We can suggest cleaning chemistry compatibility, temperature, filtration, and cycle settings.

Post-Solder Flux Removal

Removes rosin / no-clean / water-soluble flux residues after soldering, improving surface cleanliness and reliability.
SMT Through-hole Mixed Tech

Ionic Contamination Control

Supports low ionic levels for critical electronics (high impedance, HV, automotive, industrial controls, etc.).
Reliability Less leakage Lower corrosion risk

Rework / Repair Cleaning

Cleans boards after rework, hand-solder touch-ups, or component replacement to remove local residues and residues under parts.
Service centers After rework Spot issues

Under-Component Cleaning

Helps reach residues around dense SMD areas and below certain geometries (process depends on assembly sensitivity).
Dense SMD Tight gaps Process control

Pre-Conformal Coating Cleaning

Cleaner surfaces improve coating adhesion and reduce coating defects caused by flux residues or handling contamination.
Better adhesion Less bubbles Fewer rejects

High-Reliability Assemblies

For applications where cleanliness impacts field performance—industrial controls, telecom, power electronics, etc.
Industrial Telecom Power
Recommended Product: Ultrasonic PCB Cleaner (Defluxing System)
We’ll suggest configuration based on PCB size, throughput and chemistry.
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Note: PCB cleaning is a process-sensitive application. Please share PCB photos, component details, and flux type. We will recommend the best solution and cycle to avoid any risk to components.
How to Choose the Right PCB Defluxing Setup

PCB Size & Batch Qty

Share PCB dimensions (L×W), max component height, and how many boards per batch. This decides tank and basket size.

Flux Type & Chemistry

No-clean, rosin, or water-soluble flux—chemistry selection is critical. We recommend compatible solutions and temperature.

Temperature Control

Controlled heating improves cleaning, but temperature limits depend on components and materials. We set safe limits.

Filtration & Bath Life

Filtration captures suspended residues, improving consistency and extending bath life for production usage.

Rinsing & Drying

Rinsing and proper drying reduce residue carryover and water marks—important for high-reliability electronics.

Validation Needs

If you have cleanliness targets (ionic level, coating adhesion, etc.), share them. We tune process and suggest checks.
Quick enquiry tips: Send PCB size, flux type, batch quantity, and photos (top & bottom).
We’ll recommend a suitable PCB cleaning/defluxing setup.
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