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In a pipe line anticorrosion coating , there are several
layer which provide specific protection according to their
nature and chemistry. These layer must be applied on a very
clean surface to assure high performance and maximum
protection properties. Coating layer are include of :
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FBE (fusion bong
epoxy ) liquid or powder coating
Fusion bond
epoxy (FBE) is primer coating which provide maximum
anticorrosion effect. It is highly reactive epoxy coating
which is available in powder or liquid form and apply on
pipe fully treated surface (internal or external) by using
electrostatic powder coating spraying gun or its liquid
spraying unit.
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Co-polymer adhesive layer
The second layer
mainly is a Modified polyolefin with functional groups bond
firmly to common polyolefin’s, polyamide, EVOH, PET, wood,
glass and metals. It use as an excellent adhesive interlayer
of various materials including steel. This layer apply by an
extruder on pipe surface immediately after FBE coating.
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Thermoplastic layer (PE,PP,PU)
Depends on the
final usage and characteristics of coating, the 3rd layer of
anticorrosion coating will be a layer of thermoplastic
polymers such as polyethylene, polypropylene or
polyurethane. This layer generally produce by an in line
extruder immediately after adhesive layer. It provide
excellent surface elasticity and flexibility and protection.
In some case this layer is ready and wrap on the pipe.
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