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European Union (EU) will
implement the RoHS directive before the effective date of July 1,
2006. The aim is to restrict the use of six hazardous substances (Cd /
Cr6+ /Hg/Pb/PBB/PBDE) within electrical and electronic equipment and
recycling of the waste (WEEE), in order to protect the human health
and the enviroment.
Traditional metal surface pretreatment process,
such as chemical
conversion coating or anodizing, usually use Cr6+or other heavy metal
ions to provide corrosion resistance.The regulation has been more and
more restricted for using chromate and other heavy metal ions
chemicals as well as using these metal surface pretreatment processes.
These traditional electrochemical routes of corrosion prevention for
metals can be concluded as ˇ§passive corrosion resistanceˇ¨.
Since 1997, Nanmat
Technology has become the world leading company on using nano-material
technology to improve the corrosion resistance of metals.
The NanoMate® Coating process is to apply an aqueous or solvent based
solution, on the metal surface to form an organo-Ceramics nano-material
coating, which can chemically bond to the metal as actively changing
the metal surface to be more corrosion resistance, while can also
chemically bond to organic adhesives /paints.
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The features are as
following: |
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1. |
These solutions are
either aqueous or solvent based depending on the applications,
which are environmentally benign and content no heavy metal
ions. |
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2. |
These solutions can
be applied by dip,spin, spray or roller coatings. |
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3. |
No Water rinse after
coating process, which can eliminate waste water and the major
pollution by traditional surface pretreatment processes. |
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4. |
Provide strong
chemical bonding with both metal surface and organic
adhesives/paints, which is much stronger than the mechanical
interlock between traditional conversion/anodizing surface and
adhesives/paints. |
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5. |
The coating
thickness can range from less than a µ m to few tens µ m
depending on the solutions and applications. |
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6. |
It may also replace
primers or even topcoats. |
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7. |
Chemical composition
can be designed to enhance many different properties such as
adhesion, corrosion resistance, wear-resistance, hydrophobic or
hydrophilic. |
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8. |
Can be applied on
many different metals and alloys, such as AI,
Cu,Ti,Zn,Steel,Stainless and Mg,and all showed superior
performance. |
We can conclude this revolutionary
technology as ˇ§active corrosion resistance for metalˇ¨ which represents
by using nano Organo-Ceramics to modify the metal surface as more
inert and impermeable to oxygen and water.
This NanoMate® process has not only created a totally new mechanism of
corrosion resistance as ˇ§Active corrosion resistanceˇ¨ for metals by nano-material, but also brought in many new applications for certain
metals that do not exist before. We believe, by further exploring this
revolutionary method for metal surface pretreatment
And finishing, will totally change the way of people using metals.
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TEL:886-7-368-6666
