Durateck - National Coating Technology

Sheet Composition, Finish, Sheet Size and Cut Tolerances

304 & 316 stainless steel sheets - (4ft x 10ft), (4ft x 8ft) or cut to specified length. Other series stainless steel available as required by design.
Thickness range 12 Ga. - 24 Ga.
Length & width cut tolerances: L- (+/- 0.020"), W - (+/-0.012")
Finishes available: Mirror (#8 non-directional polished), Long grain (brushed), #4 (satin),
Etched (selected patterns)

Coating

The decorative colored coating is a metallic film produced in a vacuum using a physical vapor deposition process. The coatings are very hard and may contain alloys of Titanium, Zirconium, Chromium or Titanium-Aluminum in the form of TiN, TiCN, CrN, ZrCN, TiAlN .....etc. depending on the color. The color is determined by carefully controlling the mixture of gasses, vacuum level, temperature, metal alloys and other factors.

Quality Control

DuraTeck sheets are produced under precisely controlled conditions in our ISO 9002 certified manufacturing plant. Each step of the manufacturing process is controlled to meet our high standards for uniform finish, color, hardness and adhesion.

Applicable Standards and Related References

Standard	Test	Results
ASTM B368	96 Hour CASS	No Visible Corrosion
ASTM B117	Salt Spray	No Visible Corrosion
ASTM G53	QUV Test	No Visible Color Change
ASTM D3363	Pencil Hardness Test	Pass - Scale B
Bend Test (Internal Test)	180 Degrees	No peeling or flaking of the coating.

Resistant to:

Corrosion; chemically stable
Acids
Oxidation, will not fade, tarnish, crack, or peel under normal conditions, indoors or outdoors.
Wear from normal usage
Color fading
Vandalism, markerpens and paints are easily removed
Tarnishing, oxidation, discoloration, peeling or cracking in harsh sunlight, salt, humidity, and city environments.

Left is DuraTeck coated stainless steel after 1000 hours of salt-spray testing. Right is brass after just 176 hours of testing.