Metal Surface Treatment Chemicals Market - Global Industry Analysis, Size, Share, Growth, Trends, and Forecast 2017 - 2025
Various methods are available for the surface treatment of
metals, before any operation such as printing, adhesion, or coating is carried
out on the surface of the metals. The process of treatment of any component
made from metal (or polymer) before application of coating on the surface of
the component is known as surface treatment of metal. Surface treatment of the
metal ensures that the metal surface can adhere to the coating or printing that
is about to be applied to it as the treatment increases the surface energy
level of the metal’s surface.
The process
of metal surface treatment is also known as coatings pretreatment. The process
creates a barrier between the metal and its surrounding which acts as a
protective wall, particularly against corrosion. The surface layer is formed
due to chemical reaction, which is non-electrolytic in nature, between the
metal surface and the treatment chemical solution. These layers are adherent, inorganic
crystalline, or amorphous.
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The
protective film formed by the metal surface treatment chemicals is required to
neutralize the possible anodic and cathodic corrosion areas. This provides an
absorptive base for adhesion to finishes, such as paints. Commonly employed
metal surface treatment chemicals include chemical conversion coatings. They
are employed on metal parts that are to be painted. These chemical coatings are
acidic in nature. They are employed before applying paint, which converts the
metal surface into a metal phosphate surface. These coatings enhance the
adhesion of paint by modifying the metal surface. Application of these coatings
can either be a chemical process or an electro-chemical process.
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Examples of
conversion coating used as metal surface treatment chemicals include phosphate
and chromate coatings with base metal as iron, nickel, or zinc. Metal oxides
are also used in the process of metal surface treatment. Typically, chromate
coatings are employed on aluminum substrate, whereas, phosphate coatings are
used on steel or galvanized steel.
Products
available for surface treatment of metal include protective oils, rust and
scale removers, oil and dirt removers, detergent, and others. These products
are applied as surface layer coating over the metal surface set for processing.
These coatings are typically made of oxides, chromates, and phosphates.
Different chemical coatings are available in the market. The metal substrates
on which surface treatment chemicals are applied are of two types – ferrous and
non-ferrous metals, based on which different products are available. Certain
surface treatment chemicals can be applied on multiple metals.
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Presently,
focus on innovating and developing environment-friendly products in coatings
pretreatment is on the rise. In order to remove heavy metals such as zinc,
nickel, and phosphates from process water, several industries utilizing metal
surface treatment chemicals have their in-house waste water pretreatment
system. In spite of this, development of eco-friendly metal surface treatment
chemicals is treated as cost effective alternative over waste water
pretreatment process.
Numerous
industries use metal surface treatment chemicals regularly. Metal surface
treatment chemicals help enhance longevity of metals used in automotive or as
construction materials. Examples of industries using metal surface treatment
chemicals are automotive, construction, electrical, medical, industrial
equipment, aerospace, etc.
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Sometimes,
the paint applied onto a metal surface spills into different layers due to
improper surface treatment of the metal body, which can be avoided through
proper metal surface treatment process. The treatment chemicals allow the
curing process to take place which enables mechanical bonding between metal
surface and the paint. The quality of paint adhesion and field performance of
the metal part are dependent on the quality of the paint quality and the
conversion coating beneath it.
Key players
in the metal
surface treatment chemicals market include BASF SE, Vanchem Performance
Chemicals, KYOEISHA CHEMICAL Co. LTD., AD International, and Tantec A/S.
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