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Finish
Description>
| Anodized aluminum is an attractive and
highly corrosion/abrasion resistant material. For architectural
and other applications, it is desirable to increase surface
hardness and add color for aesthetic reasons and to provide
superior protection against atmospheric corrosion and physical
abuse. A surface treatment developed to satisfy architectural
and engineering requirements is the Embury Permanent Color
(EPC) continuous coil anodizing process which provide's a
heavier and more dense aluminum oxide coating that is integral
with the base metal. EPC is manufactured under license from
Alcan Canada Products Limited. Available in coil form, cut
to length sheet, or fabricated to specification, materials
may be finished one or both sides in either flat or embossed
patterns. EPC results in an anodic film that is color fast,
highly abasive resistant, extremely flexible, and which lends
itself to postforming techniques more readily than other hard
colors such as sulphuric acid anodizing and dyeing. Embury
can also produce clear or dyed anodic finishes in the same
thickness as EPC or flash anodic coatings up to thicknesses
indicated in Sizes data noted at right. |
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Basic Use:
For all architectural and other aluminum fabrications requiring
a protective and/or decorative finish. EPC anodized aluminum can
be handled without fear of damaging finish, especially shearing,
forming,cutting, bending or stamping operations. Example uses
for EPC continuous coil anodized aluminum include curtain wall,
store fronts and entrances, fascia, trim, column covers, sun control
devices, industrial roofing and siding, facings, flashing, residential
siding and similar exterior and interior applications.
Composition and
Materials:
The EPC finishing process employs a continuous coil anodizing process
(as opposed to batch anodizing). It is a more consistent and economical
form of anodizihg involving a highly automated process which provides
less potential for error while reducing labour costs. Uniform levels of
quality are a saliant feature of the coil anodizing process, which is
briefly illustrated below.
Coil or Sheet Sizes:
Width: Up to 52". Length: as desired depending on color.
Contact Embury for requirements. Thickness: .008" minimum to .064"
maximum.
Temper: Standard tempers from 1/4 to full hard. "0" temper on
special request.
Coating Thickness: EPC color anodizing Up to .0007", finished
one side only.
Clear anodizing .0007" one side only or .0004" one side and .0003"
on other side.
Finishes/Colors:
Several popular EPC colors are shown on
this page. Other colors available from manufacturers standard range
of colors. Dyed colors available in range of reds, greens, blues, gold.
con sult with Embury for complete color spectrum.
Applicable Standards:
Anodized finishes conform to Aluminum Association "Standards
for Anodized Architec tural Aluminum:"
Technical Data
Physical properties listed below are based on testing coil anodized
aluminum with a 0.01 " EPC coating film thickness Salt Spray (ASTM
B-287-74): No change after 300 hours in acidified salt spray cabinet.
Uviarc: No change after 96 hours (specimen located 12" from mercury
vapour arc lamp.)
Weather-Ometer: No change after 1000 hours. Tested using Atlas
Model XWR Dew Point Cyle WeatherOmeter.
Resistance to Bleaching: No change when treated with 30% hydrogen
perox ide for a period of 24 hours.
Availability and
Costs:
Available throughout U.S. and Canada. Contact Embury for current
list of agents and pricing information.
Warranty:
Normal 1 year construction warranty against defects and workmanship
on all manufactured Embury products. Extended warranties available on
special applications and on metal finishes or coatings as per finish manufacturer's
guarantee.
Maintenance:
Normal cleaning and maintenance only for aluminum finishes required.
Follow recommendations of Architectural Aluminum Manufacturers Association
(AAMA) "Voluntary Guide Specification for Cleaning and Maintenance of
Architectural Anodized Aluminum:"
Technical Services:
Embury Company provides a complete technical consultation service,
available to the professions and trades for design assistance, special
metal fabrication and finish recommendations, including renovation suggestions.
Early consultation can reduce construction costs by simplifying preparation
and fabrication.
Related References
"Coil Anodizing Defined" published by the Continuous Coil Anodizing
Association.
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