The full name of PPGI is color coated galvanized steel, also known as color coated steel. PP is the abbreviation for painted, G is the abbreviation for galvanized. A layer of zinc metal is evenly distributed on the surface of the PPGI steel plate, which protects the base material and prevents the base material from rusting and corrosion.
The full name of PPGL is color coated aluminized steel. The surface coating of PPGL steel plate is composed of 55% aluminum, 43.4% zinc and 1.6% silicon. A star flower with a smooth and flat surface, with a silver-white base color. In comparison, the service life of PPGL is 2-6 times that of PPGI.
So,How To Choose PPGI & PPGL?
First of all, we must pay attention to the choice of substrate. For outdoor use, small spangle flat hot-dip galvanized steel coils are generally used, and it is best to use zinc-free flat hot-dip galvanized steel coils.
In recent years, there has been a trend of increasing zinc alloy coated coils as substrates:
Electro-galvanized steel coils can be used for indoor use,
Cold-rolled coils are used as substrates for film color-coated sheets,
Aluminum coil substrates are used for color-coated sheets for sanitary ware,
Roll to make substrate.
Second, you should pay attention to whether to apply a new pretreatment process system to increase the stability of the pretreatment solution, enhance the corrosion resistance and flexibility of the color-coated board, and reduce environmental pollution.
It is recommended to use functional coatings, such as anti-insect, dust-proof, and thermal insulation coatings.
