The term is an extension of GI which is a traditional abbreviation for Galvanised Iron. Today the term GI typically refers to essentially pure zinc (>99%) continuously hot dip coated steel, as opposed to batch dip processes. PPGI refers to factory pre-painted zinc coated steel, where the steel is painted before forming, as opposed to post painting which occurs after forming. Strength is 240MPA, 120gsm galvanized and coating of 25 micron RMP-220 on exposed surface including primer and 7-10 micron epoxy coating on un-exposed surface including primer.

The term is an extension of GI which is a traditional abbreviation for Galvanised Iron. Today the term GI typically refers to essentially pure zinc (>99%) continuously hot dip coated steel, as opposed to batch dip processes. PPGI refers to factory pre-painted zinc coated steel, where the steel is painted before forming, as opposed to post painting which occurs after forming. Strength is 240MPA, 120gsm galvanized and coating of 25 micron RMP-220 on exposed surface including primer and 7-10 micron epoxy coating on un-exposed surface including primer.