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American Porcelain Enamel Company
A subsidiary of
Cherokee Porcelain Enamel Corp.
2717 Independence Lane
Knoxville,
TN 37914
Phone 865-637-7833 FAX 865-637-0019
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About Porcelain Enamel
- What is
porcelain enamel?
Porcelain enamel on steel is a glass-like, non-porous material made up
of silica, borax, soda, and various metal oxides that are fused to
steel sheets.
- How is it affected by the elements?
Porcelain enamel on steel used for exterior surfaces is unaffected by
sun, rain, snow, dust, or industrial atmospheres. The hard impervious
surface defied the worst of weather conditions and will last the life
of the building.
- What is the durability of color?
The color is permanent and will not oxidize, fade, peel, or blister.
Shades of red, orange, and yellow, usually the most fugitive in the
color spectrum, are unaffected by the sun.
- What are the size limitations?
American Porcelain's porcelain enamel on steel products are generally
produced in lengths of up to ten feet and widths of up to four and
one-half feet (twenty square feet recommended) with edge flanges for
stiffness and concealed fasteners.
- What are the maintainance requirements?
Porcelain enamel on steel is maintenance-free and does not need
refinishing or repainting.
- What warranty is offered?
American Porcelain products are manufactured in compliance with the
Porcelain Enamel Institute's standard specifications (see specs/info). All manufacturer
warranties are negotiated on a job-to-job basis to meet specific
project requirements.
Mechanical & Physical
Properties (PEI Bulletin #502)
| Surface Hardness |
3.5 to 6 (Moh's Scale) |
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| Abrasion Resistance |
Excellent |
C448 |
| Compressive Strength |
20,000+ psi |
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| Modulus of Elasticity |
10 x 166 |
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| Ultimate Strength(steel) |
50,000 psi |
A424-62T |
| Yield Strength(of steel) |
35,000 psi |
A424-62T |
| Thermal Expansion |
8-14 x 106 cm/cm/-C |
C359 |
Chemical Properties (PEI
Bulletin #503)
| Salt Spray |
Excellent |
B117-571 |
| Organic Solvents |
Superior |
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| Acids |
Class A |
C282/C283 |
| Alkali |
Max.pH of 12 |
C614 |
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@ 212-F(100-C) psi |
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| Water |
190-(88-C) |
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Continuous service |
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| Oil |
Not affected |
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| Soil Corrosion |
Not affected |
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Appearance Properties
* (PEI Bulletin #501)
Color permanence
Gloss retention
Cleanability |
Superior weatherability as
evidenced by extensive testing by the National Bureau of Standards
(NBS) and the Porcelain Enamel Institute (PEI) at a variety of sites
over a period of 30 or more years |
| * Class A acid resistance
porcelain enamel |
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