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Environmental Impact
of Powder Coating
Despite all the care that is taken to protect the
environment, there are still benefits to be gained. More
importantly, the long term effect of powder coating the
product for corrosion protection. Our coating system
protects the metals which are exposed to the project
conditions, which in turn enjoy a longer lifetime and
require far less maintenance. Decay and early replacement of
parts are prevented or at best minimized.
In the long run,
powder coating will replace its counterpart, wet paint, in more
and more areas. Technically, powder coating competes with wet
paint head to head. In addition, powder coating is more friendly
to the environment than wet paint, for the same cost, yet powder
coating also has the advantage of superior mechanical and
anti-corrosive properties. Whereas wet paint is all washed up!
Another advantage
of using powder coatings is the subtraction of solvents. The
powder is applied without any additives. The harmful emission of
V.O.C., as used in wet paint, does not occur. The environment
also benefits from the electrostatic adhesion of the metal to
the powder particles. This adhesion creates a smooth and even
layer that covers the edges of the metal object. This eliminates
sharp edges that need to be ground into shape. The powder, not
attracted to the substrate is contained and reused. Wet paint
overspray has to be disposed of as chemical waste.
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Why
Powder Coat?
To protect steel from being affected by corrosion it may be
provided with a powder coating. During this process, powder is
electrostatically applied to galvanized or a black steel
product. It is then cured. The very durable coating that is
formed protects the underlying metal and gives the object a
shiny and bright appearance.
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The Benefits of
Powder Coating?
Powder coatings are applied to steel, hot dip galvanized steel
and aluminum as an anti-corrosive layer. The powder is
electrostatically applied to the metal. No solvents are used in
this process, which means that it is far more friendly to the
environment than the alternative wet paint process. Powder that
is not adhered can be reused, whereas over sprayed wet paint has
to be disposed of as chemical waste.
Powder coatings have outstanding mechanical properties, they are
elastic and resistant to impact and wear. This makes powder
coating ideal for applications in areas with a high risk of
damage, such as stairwells, public areas, gates, lamp posts,
etc.
The method for
applying powder coating, electrostatic spraying, results in a
very good coverage of edges. This sharply contrasts with the wet
paint process, where the pressure of the spray gun pushes the
paint off the sharp edges. During the powder coating, the powder
is attracted evenly to all surfaces.
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The Powder
Coating Process
