Galvanized Steel Coil

 

 

 

 

1. Corrosion resistance

- The substrate is galvanized steel (hot-dip galvanized or electro-galvanized), which provides bottom rust protection; the surface coating (polyester, silicon-modified polyester, PVDF, etc.) further isolates the corrosive medium.

2. Decorativeness

- It can be customized with a variety of colors (such as RAL color cards), gloss (high gloss, matte) and texture (wood grain, stone grain), which is beautiful.

3. Processing performance

- Easy to cut, bend, and stamp, suitable for cold processing (such as rolling and bending).

4. Weather resistance

- Special coatings (such as PVDF) are resistant to ultraviolet rays and will not fade or powder after long-term outdoor use.

5. Lightweight

- It is lighter than traditional building materials (such as concrete) and is easy to transport and install.

6. Environmental protection

- Some products can be recycled, and the coating can be treated with chrome-free environmental protection

 

 

 

Substrate type	Hot-dip galvanizing (GI), hot-dip galvanized (GL), electrogalvanized (EG).
Thickness range	Substrate thickness: 0.21.5mm (common 0.30.8mm); the total thickness increases slightly after coating.
Width range	600~1500mm (customizable striping or ultra-wide).
Coating structure	Double layer (primer + topcoat) or three layers (primer + topcoat + backcoat), the coating thickness is usually 5~25μm.
Roll weight	Single roll weight 3~15 tons, inner diameter 508mm or 610mm.

 

 

 

1. Construction field

- Roof/wall: factory, warehouse, gymnasium, etc.

- Sandwich panels: polyurethane/PVC interlayers for thermal insulation buildings.

- Decorative components: awnings, ceilings, billboards.

2. Home appliance industry

- Refrigerators, air conditioner housings, washing machine panels (high gloss or antibacterial coating required).

3. Transportation

- Carriage linings, ship partitions, container housings.

4. Furniture and office supplies

- File cabinets, display racks, partitions.

5. Others

- Solar panel back panels, ventilation ducts, agricultural greenhouse trellises.

 

 

Coating material	Features	Applicable scenarios
*Polyester (PE)	Low cost, rich colors, general weather resistance	Indoor, temporary buildings
Silicon modified polyester (SMP)	Weather resistance is better than PE, UV resistance	Moderate outdoor environment requirements
PVDF	Super strong weather resistance (more than 20 years), high price	High-end buildings, seaside facilities
PVC plastisol	Thick coating, wear and corrosion resistance	Industrial plants, home appliance parts

 

 

 

Selection suggestions:

-PVDF coating is preferred for outdoor environments, and high zinc layer substrates are required for corrosive environments (such as chemical plants).

Processing protection:

-Avoid scratches on the coating, and the incision needs to be rust-proof after cutting.

Storage requirements:

-Dry and ventilated to avoid water accumulation between layers causing white rust.