What is Metal Decking: Steel Deck Types, Gauges & ...

Types of Metal Deck Finishes

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Temporary Protection with Metal Deck Primer

Metal deck primer is applied to provide provisional protection for short periods of exposure. Therefore, uncoated steel with paint should only be considered a temporary coating, not a finished product. A final coating is recommended as handling, transportation, and job site conditions are expected to impact the quality of the finish. If you are looking for more details, kindly visit KAIYAO.

Galvanized Metal Decking

Galvanized metal decking exposed to ordinary atmospheric conditions does not need to be field painted for structural purposes. Often, painting galvanized deck is desired for aesthetic purposes. It's important to ensure proper adhesion to galvanized coils if a primer is not applied at the factory. Various oils or chemicals used to prolong the life of the coil may impact paint's ability to adhere properly.

Phosphated and Painted Composite Deck

On rare occasions, for composite floor decks, an uncoated steel sometimes referred to as Phos-painted may be specified. This composite deck is painted with primer on the bottom side and has either galvanized steel or bare steel on top. It's imperative that Phos-painted composite decks do not have paint on top as the bonding action between concrete and steel will be adversely affected.

Non-composite Form Decks

Since bonding action is not necessary for non-composite form decks, they may be painted on one or both sides. Form decks that are non-structural after the overlying concrete slab is cured may be made from steel that is uncoated on both sides. Uncoated steel is sometimes referred to as "black," which does not imply that it is painted with black-colored paint.

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