Solutions for Reliable SMT Electronics

Your partner for precision cleaning, detailed surface analytics, and optimization of downstream process steps for electronic assemblies.

SMT ElectronicsOur Holistic Approach

Whether it’s process development or the optimization of cleaning processes, we take a holistic view of your requirements – from selecting the right cleaning equipment and chemistry to process analytics and monitoring to ensure reliable assemblies.

Cleaning process qualification Custom Process Development & Optimization

ZESTRON works with you to develop a cleaning process perfectly tailored to your assembled PCBs. Whether you’re optimizing an existing process or developing a new, custom solution – we support you as a trusted partner from the very beginning.

Learn more

Consultation between a Zestron engineer and two customers in the technical centre. | © @The Sour Cherry Fotografie - Michaela Curtis

A Zestron engineer stands at the batch cleaning system in the machine test centre and inspects the cleaned PCBs. | © @The Sour Cherry Fotografie - Michaela Curtis

Cleaning System Selection Cleaning Trials at Our Technical Center

We offer an independent comparison of equipment and processes from leading manufacturers for cleaning assembled PCBs. Under production-like conditions, we carry out cleaning trials to develop the optimal solution – tailored to your specific requirements and budget.

Learn more


Cleaning agentsIf ZESTRON Can’t Clean It, It Can’t Be Cleaned

Our cleaning solutions are specifically designed to meet the high purity requirements of SMT production. With high-performance cleaning chemistry, we help you meet your individual quality standards.

Learn more

PBCS cleaning in the technical centre on the inline cleaning system | © @The Sour Cherry Fotografie - Michaela Curtis

A green circuit board is viewed through a Keyence microscope by a laboratory employee at Zestron's analysis centre. | © @The Sour Cherry Fotografie - Michaela Curtis

cleanliness analytics Surface Cleanliness Analysis

Using state-of-the-art analytical methods and in accordance with international standards such as IPC, MIL, or J-STD, we verify the surface cleanliness of your assembled PCBs in our in-house analytical center.

Learn more


process controlCleaning Bath Monitoring

We monitor the quality of your cleaning bath to ensure consistent cleaning results and offer efficient methods for both manual and automated bath monitoring within your production environment.

Learn more

An employee carries out a bath analysis to determine the purity.  | © @The Sour Cherry Fotografie - Michaela Curtis

A group of employees discuss the purity determination of electronic assemblies. | © @The Sour Cherry Fotografie - Michaela Curtis

Failure Analysis & Risk Mitigation For Your Reliability and Dependable Product

We identify failure causes on the surface of your assemblies, uncover weak points, and develop customized solutions to ensure safe and reliable products.

Learn more


your partner forTailored Solutions for Your Electronics Cleaning

From process qualification and the selection of suitable cleaning equipment
and media to quality control.

Contact Us


SMT CleaningBenefit From Our Expertise

A close-up of a printed circuit board with white spots is shown. | © @ZESTRON

White Residues on the Assembly

Possible causes and possible solutions

Read more

Printed circuit boards are lined up next to each other, ready for the cleaning process before conformal coating. | © Zestron

Conformal Coating: Cleaning Before PCB Coating

Why Cleaning Before Protective Coating Makes Sense.

Read more

Two laboratory employees are in the analytical centre and carry out the ion chromatography analysis procedure. | © @The Sour Cherry Fotografie - Michaela Curtis

Flux Residues and Their Effects on Electronic Assemblies

Understanding the importance of flux residues and taking effective countermeasures.

Read more

The image shows a close-up of an electronic assembly exposed to moisture. | © ZESTRON

The Underestimated Danger: How Moisture Affects Electronic Assemblies

Moisture can cause significant issues, so a good understanding of the risks and appropriate protective measures is crucial.

Read more