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December 27, 2007

STEEL FURNITURE:


STEEL FURNITURE:

GENERAL INFORMATION
The factory applied finish is a premium quality weatherable coating, which will retain its uniform appearance for many year of normal service. Proper installation and maintenance are extremely important in obtaining the best service and appearance from pre-painted metal sheets.

INSTALLATION AND STORAGE
  • Pre-painted formed sheets must be protected from moisture until installation. When metal sheets are tightly nested together and exposed to moisture and heat, oxidation (rusting) of the metal substrate can begin. In the case of galvanized steel, a white powder will form which is the normal sacrificial reaction of the zinc coating. Oxidation of this type can take place underneath the paint film. The following steps should be taken to control this type of storage damage.
  • Exterior storage time at job site should be made to a minimum.
  • Plastic tarpaulin should not be used to cover panels as they trap moisture.
  • Generally steel furniture ar every durable and normally do not undergo rusting.
  • Proper handling and stacking should be observed in transit to prevent abrasions. During installation, a common cause of damage is the dragging of whole sheets, edges, and corners across other sheets. Here the sacrificial action of the zinc coating will retard red rusting, even if both the paint and galvanized coatings are cut through. If the appearance is damaged sufficiently, a touch-up operation may be necessary. Touch-up paint is available in matching colors.
CLEANING PAINT SURFACES

Though the factory applied finishes are very durable and will last many years, eventually it may be desirable to thoroughly clean or repaint.

Dirt pickup may cause apparent discoloration of the paint when it has been exposed to dirt laden atmospheres for long periods of time. Slight chalking may cause some change in appearance in areas of strong sunlight. A good cleaning will often restore the appearance of such surfaces and render repainting unnecessary. An occasional light cleaning will help maintain good appearance.

Sometimes rusting may occur in steel too. It may occur in areas subject to high humidity, but is not normally a problem due to the high inherent mildew resistance of the baked finishes. However, mildew can grow on dirt and spore deposits. To remove mildew the following solution is recommended:
  • 1/3 cup detergent (e. g. Tide)
  • 2/3 cup tri-sodium phosphate (e. g. Soliex)
  • 1 quart sodium hypochlorite 5% solution (e. g. Chlorox)
  • 3 quarts water
Strong solvent and abrasive type cleaners should be avoided.

Caulking compounds, oil, grease, tars, wax, and similar substances can be removed by wiping with a cloth soaked with mineral spirits. Only contaminated areas should be wiped, followed with detergent cleaning and thorough rinsing.

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