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Disclosed is a black metal sheet exhibiting high jetness which conceals the colour and gloss of a metal sheet, even if the film thickness of the black coating film (black layer) used to coat the surface of the metal sheet is thin, specifically, even if the amount of the black coating film (black layer) deposited is 0.28-1.5g/m² (film thickness approx. 0.26-1.42 μm).

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WO2011122326A1 - Black metal sheet - Google Patents

Disclosed is a black metal sheet exhibiting high jetness which conceals the colour and gloss of a metal sheet, even if the film thickness of the black coating film (black layer) used to coat the surface of the metal sheet is thin, specifically, even if the amount of the black coating film (black layer) deposited is 0.28-1.5g/m² (film thickness approx. 0.26-1.42 μm).

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Hot dip galvanizing is the most common method of galvanizing and is that which should always be specified for the coating of structural steels including reinforcing bar. The coating produced by hot dipping, which is metallurgically bonded to the steel and generally more than 100 μm thick, is strongly adhered to the base steel and is quite ...