High performance, low VOC cleaning agents MICROCLEAN ECO & MARKLESS® ECO

Introduction

Flux cleaning is indispensable for ensuring the reliability of high-density mounting substrates. Amidst tightening regulations on chemical substances, such as the discontinuation of CFC substitutes in accordance with environmental regulations and VOC regulations under China's GB standard, KAKEN TECH® has developed the MICROCLEAN ECO & MARKLESS®ECO Series, a high-performance, low-VOC cleaning agent that combines further high-precision cleaning with environmental friendliness.

Nano-size miniaturization technology

KAKEN TECH had already launched a low-VOC cleaning agent that effectively cleans flux residues using a two-phase separation of the oil and water phases.
However, with the increase in mounting density, we anticipated an increase in the need for flux cleaning agents for narrower gaps, and began development of a new cleaning agent. By miniaturizing the oil phase of conventional low-VOC cleaning agents down to the nanosize, we have developed a new cleaning agent that is capable of removing flux residue even from narrower gaps, which has been difficult to achieve until now.

Conventional low-VOC cleaning agent
(two-phase separation)
 MICROCLEAN ECO Series

MICROCLEAN ECO＆MARKLESS® ECO series

☝Excellent narrow-gap cleanability and particle removal
The new concept of the cleaning mechanism makes it possible to clean flux in narrow gaps. Furthermore, it has excellent removal of particles (fine foreign substances in the process) such as minute solder balls, sebum, and fine particles, which have been difficult to remove with conventional flux cleaning agents.

☝Environmentally friendly, low VOC, non-hazardous
Approximately 70% of its composition is water, which reduces emissions of VOCs (volatile organic compounds) due to the drying process and volatilization.
Non-flammable and it does not fall under the United Nations Recommendations on the Transport of Dangerous Goods (UNRTDG), so it can be transported as a normal product during international transportation.

Comparison of flux cleanability in narrow gap

MICROCLEAN ECO Series
 Semi-aqueous cleaning agents
Cleaning condition：
MICROCLEAN ECO Series 50℃/Jet x 10min		 　　Cleaning condition：
Semi-aqueous cleaning agents　60℃/jet x 10min
Work pieces：PKG parts 30um gap

Particle removal property

【minute solder balls】
Target particle size：30~50um
Cleaning condition：MICROCLEAN ECO series (50℃/jet x 1min)
【Foreign matter adhered in the process】
Sebum, Sebum fragments
 Alumina Particles
Target particle size: sebum・sebum fragments/average 30um, Alumina particles / approx. 2um
Cleaning conditions: MICROCLEAN ECO series (50°C / ultrasonic x 1 min)

General Properties

Product name Cleaning agent
MICROCLEAN ECO-8100		 Rinse agent
MARKLESS® ECO-R81
Specific Gravity 0.98 0.98
Viscosity
(mPa・s)		 4 3
Surface Tension
(mN/m)		 32 31
Boiling point 100℃以上
Flash Point なし
ODP 0
UNRTDG UN Class : N/A
UN No. : N/A
China VOC Regulations
(GB38508-2020)		 Semi-aqueous cleaning agents
Technical
Datasheet		 Technical Documentation Icons Technical Documentation Icons

Cleaning machine

thumbnail of Flux Cleaning Machines Product Page Products information
Flux Cleaner(Deflux cleaner) MICROCLEANER®
In recent years, as electronic devices have become smaller and mounted more densely, electronic circuits and components have required increasingly higher quality and reliability, and the need for flux cleaning has increased. MICROCLEANER® is the definitive flux cleaner! It contributes to higher quality of printed circuit boards and electronic components.

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New Environmentally Friendly High Performance Flux Cleaner/Rinse liquid
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In addition to what flux is, its role, composition, and types, we will also explain the problems caused by flux residue left after soldering and how to prevent them.
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Flux cleaning is a process to remove flux residue that is generated at the same time as soldering when mounting electronic components. This page explains why flux is cleaned, what cleaning methods are available, and what is required for efficient cleaning.

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