PPGI is prepainted galvanized steel, also known as prepainted steel, coil coated steel, color coated steel etc.

A galvanized steel sheet in coil form is cleaned, pretreated, applied with various layers of organic coatings which can be paints, vinyl dispersions, or coatings are applied in a continuous process known as Coil steel thus produced in this process is a prepainted, prefinished ready to use material.

PPGI is the material which uses galvanized steel as the basic substrate metal. There could be other substrates such as aluminum, Galvalume, stainless steel, etc.