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Chemical
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ゼストロンジャパン

EstablishmentJanuary 2013
capital1000Ten thousand
number of employees9
addressKanagawa/Samukawa-cho, Koza-gun/1-17-16 Ichinomiya
phone0467-53-8658
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last updated:Sep 04, 2025
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ゼストロンジャパン List of News Articles

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  • Publication year : 2025

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分析サービス.png

A page for "Analysis Support" has been added.

  • Catalog news

Flux residues require the selection of analytical methods based on their type. By conducting chemical analysis, it is possible to analyze the causes of defects and improve processes. You can download a free document summarizing our analysis service overview. If you are struggling with cleaning processes or defect analysis, please take a look. Zestron offers cleanliness analysis technology that can comply with ISO 9455-18:2024.

Oct 14, 2025

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進化するプリント基板.png

A page explaining the future of evolving printed circuit boards (PCBs) and the increasing importance of cleaning technology has been added.

  • Product news

The "Printed Circuit Board (PCB)" can be considered the heart of electronic devices; it serves as a foundation for mounting electronic components and electrically connecting them. The fine wiring patterns formed on this board become pathways for electronic signals, and the electronic components are fixed and connected by solder. From smartphones to automobiles, home appliances, and medical devices, PCBs have become an indispensable part of various technologies in modern society. In this article, we will introduce the main types of printed circuit boards (PCBs), the future prospects seen from the development of these boards, and the cleaning technologies that are required. Please see the related links for more information.

Sep 04, 2025

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IPROS1312928283026063109.png

A page titled "What is an SDS (Safety Data Sheet)?" has been added.

  • Product news

An SDS (Safety Data Sheet) is a document that contains important information regarding the handling of chemical substances, relevant regulations, disposal and transportation methods, as well as hazards and toxicity. The applicable regulations for flux cleaning agents, the presence or absence of flash points, usage precautions, the necessity of protective equipment, and disposal methods are detailed over more than 10 pages. In this article, we will explain important points that we particularly want you to pay attention to, as well as frequently asked questions, in a column format. Please see the related links for more information.

Jul 08, 2025

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フラックス洗浄の基礎知識2.png

Added a page for "Basic Knowledge of Flux Cleaning ver.2 [Document]."

  • Catalog news

This is the updated version (ver.2) of the popular document "Fundamentals of Flux Cleaning." In this revision, in addition to the existing content (how to choose cleaning agents and cleaning methods), we have added the basics of "Residue Evaluation (Analysis)." This document is recommended for those who are just starting with flux cleaning and for those who want to understand the entire process from cleaning to analysis. In addition to the purpose of cleaning and the fields where cleaning is necessary, we also explain the necessity and methods of chemical analysis, so please take a moment to read it.

May 29, 2025

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1.png

We have added a page titled 'What is PCB Cleaning? An explanation from basic knowledge to the latest trends in cleaning challenges.'

  • Product news

What is substrate cleaning? Is substrate cleaning unnecessary? We provide a detailed explanation of areas where flux cleaning is necessary, among other topics. In Japan, many cases adopt no-clean paste, but cleaning has become essential to ensure high reliability. We also address the latest cleaning challenges, such as the impact of ionic residues and metal salts on insulation resistance, in this column. Recommended for those who: * Want to investigate the causes of defects despite cleaning * Want to know the latest cleaning challenges and evaluation criteria * Want to explain and promote substrate cleaning within their company, etc. Please see the related links for more information.

Apr 17, 2025

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「【共同研究】シンター剤残渣+タック剤複合有機物の除去」のページを追加しました1.png

Added a page on the removal of "sintering agent residue + tackifier" composite organic matter [joint research with Mr. McDermid].

  • Other・notification

In recent years, the advancement of electronic devices has led to a demand for advanced bonding technologies that can withstand high temperatures, large currents, and high voltages. In particular, in power devices, there are increasing cases where conventional solder types do not provide sufficient performance. While high Pb solder and Au/Sn solder can be applied, the use of "sintered bonding" is expanding due to considerations such as environmental regulations and costs, as it can form a high-density bonding layer. This article will examine effective cleaning methods utilizing spray cleaning and ultrasonic cleaning, and introduce the features and application examples of the cleaning agents VIGON PE 305N and VIGON PE 216A for power electronics.

Apr 01, 2025

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IPROS1071705455806641186.png

A page has been added for the joint research titled "Cleaning Issues of Water-Soluble Flux: Insulation Performance and Residue Analysis."

  • Other・notification

In current electronics assembly in Japan, rosin-based flux is predominantly used for soldering. However, due to the promotion of the SDGs and the growing interest in reducing environmental impact, there is an active evaluation of water-soluble flux, which is expected to reduce VOC emissions and cleaning burdens. This time, we will present an investigation into the actual cleaning conditions of water-soluble flux, which is recognized as easier to clean than rosin-based flux.

Feb 27, 2025

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【共同研究】長辺抵抗の洗浄性検証.jpg

A page titled "Verification of Cleanability of Long Edge Resistance" has been added.

  • Other・notification

Long-side resistors refer to a type of chip resistor (resistor) on a substrate where the electrodes are arranged along the long side of the component. In recent years, there has been an increase in cases where they are used for the purpose of enhancing functionality and ensuring long-term stability. In this instance, we created a test board using general-purpose rectangular resistors (2012) and long-side resistors (1220), and conducted substrate cleaning using a cleaning agent primarily composed of water (manufactured by Zestron / VIGON PE 304N) and a general-purpose solvent-based cleaning agent primarily composed of organic alkali. For this verification, we received cooperation from Japan Superior Co., a solder manufacturer, and conducted a detailed analysis comparing the cleanliness of both types of resistors.

Feb 12, 2025

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