U. S. Steel ACRYLUME® Coated Sheet is a zinc-aluminum coated steel sheet product that combines the
excellent corrosion resistance of GALVALUME® Coated Sheet with a clear organic
polymer surface treatment that is applied over the GALVALUME® coating. The
surface treatment is essentially invisible, but it provides excellent characteristics to
enhance the performance and applicability of unpainted GALVALUME® Coated Sheet.
These enhancements include:
Good roll formability without the need for
oils
Excellent transit and field-storage
performance without darkening or staining
The practical eliminations of
fingerprinting and footmarking during installation
Long-term surface brightness when exposed
to the environment to help retain heat reflectivity
ACRYLUME® is produced by applying the organic polymer film directly over
the zinc-aluminum coating of the GALVALUME® Coated Sheet using roll-coating equipment.
Following application of such liquid film treatment, the strip is dried in an oven to
provide a clear, dry acrylic coating on the surface of the GALVALUME® Coated Sheet.
The coating is clear and flexible and is approximately 1.0 micrometer thick. It also
provides lubricity that improves the roll-forming characteristics.
The use of roll-coating equipment to produce ACRYLUME® provides a uniformity to the surface treatment that is not available by other less complex means of application. Mon Valley Works and Fairfield Works have state-of-the-art equipment that completely covers both sheet surfaces with a clear, uniformly thick acrylic coating.
Performance
ACRYLUME® has been processed on a number of different roll-forming lines with
complete success. The roll-formed profiles included difficult standing-seam types. It is
not necessary to add oils to either the strip or the forming rolls. The performance with
respect to the job site storage, hand marking and non-uniform darkening has been equally
impressive. ACRYLUME® will exhibit the same spangle variations normal to
GALVALUME®. Roofing panels may therefore exhibit color variation.
Product Attributes
Acrylic coated GALVALUME® Coated
Sheet
Improved surface corrosion
resistance
Roll forms without oil
Improves handling
Less slippery
Safer installation
Practically
eliminates hand and foot printing
Minimizes
discoloration over time
Acrylic coating is
not a substitute for paint
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