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Blygold PoluAl XT
Dry cooler protected
Protection
of Climate
with PoluAI XT
Installations
Heat exchangers are subject to severe corrosion because of their
construction, which usually combines dissimilar metals, and the
environment that they are exposed to.
Corrosion and pollution of heat exchangers will directly affect the
performance of the air conditioning system. The heat exchanger
must be sealed off from the environment in a manner that will
not reduce its heat transfer or cause a pressure drop.
If this can be accomplished, the cooling capacity will remain
intact and energy consumption can be controlled. To achieve
this, have your heat exchanger treated with the Blygold PoluAI XT
Corrosion Protection System.
Blygold®
AMERICA
INC.
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of Climate
Installations
The Blygold PoluAI XT protective coating is the latest development from
the Blygold R&Ddepartment. This goldcolored polyurethane coating has new
important features that make the treatment easier and faster. PoluAI XTcan
be applied directly to the copper and aluminium and therefore expensive
pre-treatments are no longer needed. The heat conductive pigmentation in
the coating is oriented in the 3-dimensional coating structure so that it creates
a very high chemical resistance at a lower layer thickness. Coatings on heat
exchangers should not exceed a thickness of more than 25 micron or' mil to
prevent an unnecessary increase of pressure drop and thermal resistance.
In combination with the unique application procedures of certified
Blygold applicators the PoluAI XT is the best available option to prevent
air conditioning failure and unnecessary energy consumption.
Treatment:
Blygold PoluAI XT
Coating type:
Aluminum
Color:
Gold
Pretreatment:
Degreasing
Temperature
Range (dry):
Impregnated
Polyurethane
-20°C to 150°C (-4°F to 302°F)
Substrates:
Aluminum
ASTM 8117:
4000+ hours (neutral-salt
ASTM 8-287:
4000+ hours (acid-salt spray test)
Kesternich
80 cycles
(2.0 Itr S02):
and Copper
spray test)
layer Thickness:
25-30 urn (1 mil)
Pressure Drop:
0-5 % (depending
on fin geometry)
0-3 % (depending
on fin geometry)
Thermal
Resistance:
Application:
Qualified Blygold Applicator
UV Resistance:
Excellent
Adhesion (cross hatch):
o (European)
Applications:
Heat exchanging
Chemical resistance at 1 mil:
Excellent
Sb (USA)
surfaces in corrosive conditions
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Protection
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with Blygold PoluAI XT
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Cooling coil protected
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A photo of an unprotected
and
corroded heat exchanger.
A photo of a heat exchanger
treated with Blygold.
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