Thursday October 29 , 2020
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Hot-Dip Galvanized
After the steel cable tray has been manufactured and assembled, the entire tray is immersed in a bath of molten zinc, resulting in a coating of all surfaces, as well as all adges, holes and welds.
Coating thickness is determined by the length of time each part is immersed in the bath and the speed of removal. Hot dip galvanizing after fabrication creates a much thicker coating than the pre-galvanized process.

Pre-glvanized, known as mill-galvanized is produced in a rolling mill by passing steel coils through molten zinc. These coils are then slit to size and fabricated.
Areas not normally coated during fabrication, such as cuts and welds, are protected by neighboring zinc, which works as a sacrificial anode. During welding, a small area directly affected by heat is also left bare, but the same self-healing process occurs.
In accordancewithASTM525-M87, pre-galvanized steel is not generally recommended for outdoor use or in industrial environments.

Epoxy Coating
Epoxy paint is sometimes required for increased corrosion resistance, and or aesthetic purposes. Prior to applying epoxy paint all parts are cleaned and phosphatized. Items are then coated electrostatically with epoxy paint and baked to cure the paint. Tray’s colour RAL is 7032. other colours and finishes are available upon request.

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