VIGON® N 680 - Latest pH Neutral Defluxing Solution for SMT and THT Low Standoffs
HYDRON® SE 230A - Semiconductor Defluxing
VIGON® PE 190A - PCB and Power Electronics Defluxing
ZESTRON® EYE CM - Automatic Concentration Management
First to Market with Innovative pH Neutral Cleaning Solutions

PCB Assembly Defluxing and Cleaning Process

When cleaning PCB assemblies, the primary goal is to remove contaminants from populated boards and hybrid circuits resulting from fluxes and improper handling.  The use of engineered PCB cleaning solutions is essential to ensure flux residues are fully removed from the assemblies used in high-reliability applications and industries such as automotive, medical, aerospace, and military. 

The targeted use of a cleaning agent substantially improves the integrity of subsequent processes such as bonding and conformal coating.  Residues can cause improper adhesion of bonds that can lead to failures such as heel cracks or lift-offs. During the coating process, remaining residues can result in poor wetting and delamination that can cause assembly failures and ultimately lead to field failures.

These reliability risks are increased when using lead-free solder pastes as they contain more resins as well as aggressive activator systems and are soldered at higher temperatures.

Stages of Flux Cleaning

1. Untouched

2. Partially Removed

3. Mostly Removed

4. Completely Removed

Aqueous and Solvent Based PCB Cleaning Agents

Cleaning agent options for PCB cleaning applications are detailed below. All ZESTRON cleaning agents are in compliance with the latest RoHS, REACH, and WEEE regulations worldwide in addition to current worker safety standards and applicable environmental requirements.

Aqueous-based cleaning medium for defluxing

Aqueous-based cleaning medium for defluxing applications in spray-in-air processes

Aqueous-based cleaning medium for flux removal

Aqueous-based cleaning medium for defluxing

Aqueous-based cleaning medium for flux removal

Aqueous-based defluxing agent for high pressure cleaning processes

Aqueous-based defluxing agent for low and/or medium pressure cleaning processes

Precision cleaning medium for manual flux removal

Aqueous-based, pH neutral defluxing agent for spray-in-air cleaning processes

Aqueous-based, pH neutral defluxing agent for spray-in-air low standoff applications

Alkaline defluxing agent for PCBs and Power Electronics

Aqueous-based cleaning medium for flux removal

Solvent-based medium for PCB flux removal

Solvent-based cleaning medium for defluxing

Legend

Additive
Aerosol
Alkaline
Automated
Bath monitoring
Cleaner regeneration
FAST® Technology
HYDRON® Technology
Low standoff
Maintenance cleaning
Manual
Manual cleaning
Metal cleaning
MPC® Technology
Packages
PCB
PH neutral
Power Electronics
For sensitive surfaces
Solvent
Spray bottle
Stencils & Screens
Surface Analysis
Underside wiping
Wafer