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#728 Aluminum Roof Coating is designed to provide a
reflective surface for roofs, metal buildings, tanks and mobile
homes. Aluminum pigmented asphalt coatings can
substantially reduce interior building temperature and prolong
roof service life.
Lucas #728 Aluminum Roof Coating is formulated from
specially refined asphalt, aromatic and aliphatic solvents, and
ASTM D 962 leafing aluminum paste. Light brushing viscosity
allows for quick and economical coverage.
Surface to be coated must be dry and free of dirt or corrosion
particles. It will be helpful to turn the pails upside down 24
hours prior to application so that the settled aluminum
releases from the bottom of the pail. Before mixing pour 50%
of the liquid contents into a clean 5 gallon pail. All of the
aluminum should remain in the original pail. Mix the
aluminum into the liquid contents. When it is free of lumps,
add back the liquid from the second pail and mix until uniform.
Mechanically mix coating thoroughly and continuously before
and during application. Power mixing is recommended, a
square bladed drywall mud mixer and 1/2 inch drill is
recommended for 5 gallon pails.
Apply evenly with a soft bristle brush or suitable spray
equipment at the rate of not less than one and not more than
one and one half gallons per 100 square feet. For best
results, brush coating in one direction with the slope of the
roof. Do not apply over fresh roof repairs or coating. Roofing
asphalts, both hot and cold applied, contain oily constituents
which may bleed through and stain the finished coating. As
this condition is unpredictable, we recommend that the user
apply a small amount of #728 to the area of the roof to be
coated in order to test its performance. Use #728 as it comes
from the container, no thinning is necessary with this product.
Roof surfaces must be dry for coating application. Even
when the surface appears dry, moisture trapped in the roof,
deck or insulation. A moisture scan is recommended prior to
application. Application of this coating within 5ºF of the dew
point is not recommended
Combustible mixture, keep away from heat and open flames. Avoid prolonged contact with skin or fumes. If irritation occurs seek medical attention. Do not use near heat
or open flame. Keep out of reach of children. Read MSDS prior to use.
Applicable Specification: ASTM D-2824 Type III
Viscosity ASTM D-562: 625G @ 77°F (25°C)
Recommended rate of application: 1 to 1 1/2 gal. per 100 sq. ft.
% Asphalt: 30 min
% Solids: 48 min
% Non-volatile 52 max
Weight per gallon 8.1 lbs.
Aluminum Paste per gallon: 2 lbs.
% Initial: 60 min.
% Aged 3 Years: 50 min.
This product complies with the requirements of the Chicago Energy Code (Urban Heat
Flash Point (TCC): +100°F (38.7°C)
Container Sizes: 1, 5, 55
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