PPGI Steel Coils with Vaious Colors and Zinc Layer
Product description
Prepainted Galvanized Steel Coil With All RAL Colour Code is a ‘metal on which a coating material (e.g. paint, film…) has been applied by coil coating’. When applied onto the metallic substrate, the coating material (in liquid, in paste or powder form) forms a film possessing protective, decorative and/or other specific properties.
In 40 years, the European prepainted metal production has multiplied by 18.
Metal
The choice of metallic substrate is determined by the dimensional, mechanical and corrosion resistance properties required of the coated product in use. The most common metallic substrates that are organically coated are:
★ Hot dip galvanised steel (HDG) which consists of a cold reduced steel substrate onto which a layer of zinc is coated via a hot dip process to impart enhanced corrosion properties onto the base steel.
★ Galvanized mild steel (GMS) can be used as balustrade and handrail of staircase, pipe and etc.
★ Other zinc-based alloys are coated onto steel and used as a substrate for coil coating, giving different properties. They give improved corrosion resistance in particular conditions.
★ Electro-galvanised (EG) coated steel consists of a cold reduced substrate onto which a layer of zinc is coated by an electrolytic process.
★ Cold reduced steel (CR) without any zinc coating
★ Wrought aluminium alloys
★ Many other substrates are organically coated: zinc/iron, stainless steel, tinplate, brass, zinc and copper.
Coatings
A wide range of organic coatings are in use for prepainted metal, developed in order to provide different levels of durability and performance, or to satisfy different aesthetic requirements. The most commonly applied coatings are based upon liquid paints, although films (also known as laminates) and powder coatings are used in smaller quantities. These are liquid paints (e.g. primers, finishes/backing coats, polyesters, plastisols, polyurethanes, polyvinylidene fluorides (PVDF), epoxies), powder coatings and laminate films.
Liquid paints account for more than 90% of the coatings used for prepainted metal. Films are often used where very high aesthetic quality is required. Variations in film thickness, colours and finish (smooth, structured or printed) can be achieved. Powder coatings can be described as "solid paint" which can be melted to form a continuous film over the substrate. Each type of coating has its own specific advantages, be it thickness, gloss, hardness, flexibility, durability in harsh weather or resistance to chemical attack. The choice of the most suitable system must be based on its usage and expected performance.
| Category of Painting | Item | Code | |
| Polyster | PE | ||
| High-durability polyster | HDP | ||
| Silicon modified fluoride | SMP | ||
| Polyvinylidene | PVDF | ||
| Easy-Cleaning | |||
| Painting structure | Top side:20+5 microns | ||
| Bottom side:5~7 microns | |||
| Color System | Produce according to RAL Color System or as per buyer’s color sample. | ||
|
Painting structure |
Top surface | Bottom surface | |
| Primer coating | No coating | 1/0 | |
| Primer coating | Primer coating | 1/1 | |
| Primer coating +Finish coating | No coating | 2/0 | |
| Primer coating +Finish coating | Primer coating or single back coating | 2/1 | |
| Primer coating +Finish coating | Primer coating +Finish back coating | 2/2 | |
Advantages
★ With quality assurance and certification .
★ With technology strength and powerful.
★ Shortest delivery time .
★ Authentication service and Sincere Caring Services.
Application
★ Buildings and constructions: roofing, ceilings, gutters, venting lines, indoor decorations, window frames, etc.
★ Electrical appliances: computer shells, washing machines, refrigerators, dehumidifiers, video recorders, water heaters, etc.
★ Agricultural equipments: troughs, feeding tools, agricultural driers, irrigation channels, etc.
★ Vehicle parts: back-seat plates of buses and trucks, conveying systems, oil tanks, etc.
Our Package
Standard export packing, 4 eye bands and 4 circumferential bands in steel, galvanized metal fluted rings on inner and outer edges, galvanized metal and waterproof paper wall protection disk, galvanized metal and waterproof paper around circumference and bore protection for rolled galvanized sheet metal gauge thickness galvanized corrugated steel coil
