Sustainable Electronics Cleaning

Tailored Cleaning Solutions for Maximum Customer Satisfaction

Customer-InsightsMore Sustainable Electronics Cleaning

In the midst of the evolving electronics manufacturing industry, the integration of sustainability is gaining significant importance. A recently realized success story vividly illustrates the collaborative partnership between a potential customer, our experts at ZESTRON, Factronix, and Paggen GmbH. Together, a sustainable solution for the customer's cleaning process was developed.

the initial situation New Perspectives - Sustainable Electronics Cleaning in Focus 

Previously, our customer employed an HFE cleaning process, facing two significant challenges: high costs and uncertainties regarding its future viability.

The existing HFE process utilized hydrofluoroether, a non-flammable liquid suitable for electronics cleaning. Faced with the imminent end of the existing cleaning system's lifecycle, there was a desire to explore the possibility of a water-based cleaning process.

This evaluation took place at our machine center in Ingolstadt. Here, not only were the results of the cleaning trials analyzed, but the potential of a more environmentally friendly alternative was also highlighted.

Electronics cleaning Printed circuit board assembly | © @The Sour Cherry Fotografie - Michaela Curtis

the test seriesEfficient Cleaning Trials

01 | Test Objects
PCBs brought in by the customer, featuring uncleaned, double-sided assemblies.

02 | Targeted Test Results
Significant reduction/removal of visible flux residues.

03 | Tested Cleaning Agent
Utilization of  VIGON® A 201

04 | Verification of Cleaning Results:
Utilization of a digital microscope for surface inspection at 20- to 100-fold magnification.

05 | Test Description
Trial 1: Batch Spray-in-Air at 55°C, cleaning time: 15 minutes.
Trial 2: Batch Spray-in-Air at 55°C, cleaning time: 30 minutes.

06 | Test Results
The before-and-after images showcase near textbook-perfection, a remarkable feat considering the intricate challenge posed by the PCBs. These boards, featuring both Surface Mount Device (SMD) and Through-Hole Technology (THT) assembly, underwent rework.

Before Cleaning
Clear flux residues are visible in the fine-pitch area.

After Cleaning
No residues are visible in the fine-pitch area after cleaning

Before Cleaning 
The reworked assembly shows substantial flux residue amounts

After Cleaning
Almost no residues are visible on the reworked assemblies after cleaning

convincing resultsEffective Cleaning and Sustainability

The results speak for themselves: The synergy of spray-in-air cleaning technology and the water-based cleaner VIGON® A 201 achieves outstanding cleaning results, characterized by low consumption of cleaning agents and water. This not only underscores the efficiency of this solution but also emphasizes the significance of sustainability in electronics cleaning. 

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