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Corrosion Resistant
The unique combination of aluminum and zinc can outlast galvanized
steel by two to four times, depending on the environment.
Formability
Equivalent formability to conventional galvanized products
allows for a wide range of applications.
Attractive
Appearance
Aluminum-Zinc Coated Steel's smooth surface is architecturally
pleasing and makes for a superior surface for pre-painting
and post-painting.
No
Primer Required
No primer required when field painting, provided a water based
acrylic finish coat is used.
Pre-painted
Aluminum-Zinc Coated Steel is available in pre-painted
industry colors.
High
Temperature Resistance
Operating conditions resulting in surface temperatures up
to 600 degrees are easily withstood without surface discoloration.
Thermal
Reflectivity
Aluminum-Zinc Coated Steel sheet reflects a high percentage
of heat and light. In roofing, it acts as a shield and thermal
barrier.
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Specifications
The
Aluminum-Zinc sheet
coating over steel consists of an alloy of nominally 55%
aluminum, 1.6% silicon, and the remainder zinc by weight,
as listed in ASTM designation A792.
Based
on long-term atmospheric corrosion test results, it is estimated
that Aluminum-Zinc coated steel sheet will outlast G90 galvanized
by two to four times in marine, industrial and rural atmospheres.
In
salt spray tests with cut edges exposed, the corrosion resistance
is typically three to four times that of G90 Galvanized.
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