interView QuestiOn and answer
On ‘Paints and cOatinGs in the
cOrrOsiOn industry’
1.
What is paints and coatings in
relation to the corrosion
industry and why use it?
Metallic materials comprise of a
significant portion of industrial
infrastructure and are often subject to
harsh service environment. The referred
environment could be a combination of
moisture, oxygen, heat, industrial salts or
atmospheric pollutants. The rate at which
metallic materials degrade with respect
to corrosion depends on the environment
that surrounds them. Paints and coatings
tend to provide a protective barrier
between the harsh service environment
and metallic materials and hence, prolong
their service life span.
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PECM Issue 29
2.
How have paints and coatings
in the corrosion industry evolved
over the past decade? How is
the paints and coatings
technologies of today more
effective/efficient than
the technology of
previous generations? infrastructure from corrosion and erosion
damage, (ii) higher industrial throughput
requiring higher temperature and
pressure to operate and hence creating
a need of higher performance-based
coating specifications and (iii) growing
demand from environmental and health
conscious end-users.
The use of paints or coatings is not new
to humans. Lacquer which was derived
from tree sap or through resinous
secretion of lac insects was known in
Indo-China about 7,000 years ago. Since
those times, paints and coatings have
kept evolving and changing. The key
drivers of the changing trend are mainly
(i) the industrial requirement to protect its The paints and coatings of today offer
broad temperature and pressure range to
be applied in varied service environment.
They also offer more resistance to
chemical attack and a range of colors and
shades for decorative purposes.