PPGI Steel coil 0.12-0.6mm for roofing materials

PPGI Color Coated Steel Coil(Pre-Painted Galvanized Iron coil)

Color-coated steel sheet is a new type of material that has developed rapidly worldwide over the past decades. It is refined by using cold-rolled galvanized steel strip as the base plate, undergoing surface pretreatment (degreasing, cleaning and chemical treatment), primary coating and precision coating on a continuous production line. Generally, it refers to the sheet obtained by applying one or more layers of liquid coatings via the coil coating method, followed by baking and cooling processes.

The quality of its coating is far more uniform, stable and ideal than that of single-piece spraying or brushing on the surface of formed metal. Color-coated steel sheet boasts excellent decorativeness, formability and corrosion resistance, with strong coating adhesion, enabling it to maintain a bright and fresh color for a long time. As it can replace wood with steel, facilitate efficient construction, save energy, prevent pollution and yield favorable economic benefits, it has become an ideal raw material for manufacturing building sheets nowadays.

It features an attractive appearance, bright and vivid colors, high strength, superior corrosion resistance and ease of processing and forming, while also helping users reduce costs and minimize pollution.

Color-coated steel sheet is lightweight, aesthetically pleasing and has good anti-corrosion performance, and can be directly processed. It provides a new type of raw material for industries such as building decoration, roller shutter doors and windows, ceiling keels, vehicle manufacturing and home appliances.

The color-coated steel sheet with galvanized steel sheet as the base plate not only benefits from zinc protection, but also the organic coating on the zinc layer plays a covering and isolating role, which can prevent the steel sheet from rusting and extend its service life beyond that of galvanized steel sheet—specifically, the service life of color-coated steel sheet is 50% longer than that of galvanized steel sheet.

Prcduction Specification

2/2 Coating Structure

Color Coated Steel Plate Chromatography

Production Process Flow

Paint System

A variety of paint systems are available for the large number of applications of painted coil.

Polyester paints

* Polyester primer and polyester finishing coat.

* Layering 8-40um (depending on color and application)

* Excellent ductility

* Extensive color range, high degree of gloss

* Limited durability regarding UV and weathering

PU/PA Paints

* Extreme form and temperature stability

* Weathering resistant

* Versatile colour range

* High mechanical durability

* Proven in saltwater, industrial and sun intensive climates

* Especially for roller shutter slats and roller shutter box ect.

PVDF Paints

* Excellent weathering and UV properties

* Excellent color and gloss durability

* Excellent corrosion and chemical resistance

* Very good ductility

* Double coating system consisting of primer and finishing layers. Layering thickness

* Approx 25um. Degree of gloss (60 °measuring angle): approx.20 units (Gardner)

Epoxy Paint

* Outstanding chemical resistance

* High flexibility

* Ideal for interior use