摘要 |
A method of coating a sheet of steel is disclosed. The method includes preparing a surface of the sheet of steel by grit blasting with brown fused alumina. A first metal deposition coating, including aluminium, is applied and then a second metal deposition coating, including aluminium and a least one first doping material,is applied to the first coating. Finally a barrier coating including potassium silicate is applied to the second metal deposition coating. |