Cold Rolled PPGL Steel Coil Color Coated Pre Painted AISI AZ15

PPGI Cold Rolled Prepainted Galvanized Steel Coils

PPGI is pre-painted galvanized steel coils and sheets, also known as pre-coated steel, color coated steel, PPGI steel coil etc.

Using Hot Dip Galvanized Steel Coil as the substrate, PPGI is made by first going through surface pre-treatment, then the coating of one or more layers of liquid coating by roll coating, and finally baking and cooling. The coatings used to include polyester, silicon modified polyester, high-durability, corrosion-resistance and formability.

Zinc coated steel substrate for PPGI is typically produced on a continuous galvanizing line (CGL). The CGL may include a painting section after the hot dip galvanising section, or more commonly the metallic coated substrate in coil form is processed on a separate continuous paint line (CPL). Metallic coated steel is cleaned, pre-treated, applied with various layers of organic coatings which can be paints, vinyl dispersions, or laminates. The continuous process used to apply these coatings is often referred to as Coil Coating.

The steel thus produced in this process is a prepainted, prefinished and ready for further processing into finished products or components. to use material.

The coil coating process may be used for other substrates such as aluminium, or aluminium, stainless steel or alloy coated steel other than "pure" zinc coated steel. However, only "pure" zinc coated steel is typically referred to as PPGI. For example, PPGL may be used for pre-painted 55%Al/Zn alloy-coated steel (pre-painted GALVALUME steel).

Pre-painted galvanised steel coils (PPGI) have been extensively used across a wide range of prestigious projects across the world. Typical applications include construction, white goods and automotive industries.

1. Building
2. Roofing
3. Transport
4. Home Appliances, such as the side door plate of refrigerators, shell of DVDs, air conditioners and washing machines.
5. Solar Energy
6. Furniture

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Manufacturing Process and Packaging

Manufacturing

In the above process, if the cleaning degreasing process is not handled well, the adhesion of the primer of the color coated plate to the galvanized sheet is not good, and it is easy to cause the topcoat of the color coated steel coil to fall off during the press forming process.

Unrolling→Stitching machine→Entrance loop→Pretreatment→Initial coating→Bake→Cool down→ Fine coating→Bake→Embossed film→Export loop→Inspection station→Cut→Coiling