Introduction
Color-coated coil is produced by applying one or multiple layers of
organic coating onto base materials like hot-dip galvanized plates,
hot-dip aluminum-zinc plates, or electrogalvanized plates after
surface pretreatment, followed by baking and curing. Named for its
various color coatings, it is lightweight, aesthetically pleasing,
corrosion-resistant, and can be processed directly. Common colors
include gray, blue, and brick red, making it widely used in
advertising, construction, home appliance, electrical appliance,
furniture, and transportation industries.
Specification
| Standard | ASTM |
| Paint Type | PE/SMP/PVDF |
| Certificate | ISO9001 |
| Tolerance | ±1% |
| Color | RAL Color |
| Painting Thickness | Top side:10-25 microns；Back side:5-20 microns |
| Coil ID | 508 / 610m |
Color-coated Steel Coil Substrate Classification:
There are three primary types of substrates used in color-coated
steel coils:
1. Hot-Dip Galvanized Substrate – Produced by immersing steel
sheets in a molten zinc bath, forming a protective zinc coating on
the surface.
2. Hot-Dip Aluminized Zinc Substrate (e.g., 55% Aluminum, 45%
Zinc)– Created by hot-dipping steel sheets in a molten alloy of
aluminum and zinc, followed by baking and curing to enhance
durability.
3. Electrogalvanized Substrate– Formed through an electroplating
process that deposits a layer of zinc onto the steel surface.
Each substrate offers distinct corrosion resistance and performance
properties tailored to different applications.
Color-coated Steel Coil Advantages
1. Corrosion Resistance
The aluminum-zinc alloy coating provides excellent protection
against corrosion even in highly corrosive environments near
coastlines or industrial areas.
2. Durability
When combined with a durable paint finish, PPGL steel sheets can
last over 25 years with only nominal maintenance under normal
weather conditions.
3. Strength and Support
PPGL steel is strong yet lightweight. It can support heavy loads
and withstand high wind loads making it suitable for roofing and
cladding applications in commercial buildings.
Color-coated Steel Coil Applications:
1. Roofing
PPGL steel is extensively used for roofing in industrial,
commercial, and residential construction due to its exceptional
corrosion resistance and long-term durability.
2. Cladding
Thanks to its high-quality color-coated finishes, PPGL steel is a
popular choice for exterior wall cladding and facades, maintaining
visual appeal and structural integrity for decades.
3. Rainwater Goods
PPGL steel profiles are widely used to fabricate rain gutters,
downpipes, flashings, and other rainwater management systems,
offering reliable weather resistance and longevity.
4. Industrial Siding
PPGL steel panels are an ideal solution for warehouses, factories,
and agricultural sheds, combining impact resistance, fire safety
(non-combustibility), and low maintenance.
5. Agricultural Buildings
PPGL sheets provide a cost-effective and weather-resistant solution for farm structures such as sheds, barns, and stables,
ensuring protection against harsh environmental conditions.
Standard Seaworthy Export Packing:
Color-coated coils are typically packed and shipped in a way that
ensures their protection during transportation and handling. Common types of packing include coil packaging with edge protectors
and VCI (volatile corrosion inhibitor) paper, followed by secure
bundling with steel straps or wrapping with plastic film.
FAQ:
Q1:What are your company's main products ?
A1: Our main products are GI & GL & PPGI & PPGL steel coil / sheet / plate / strip coil, currugated galvanized steel sheet, angle bar, c channel
Q2. How do you control quality ?
A2: Mill Test Certification is supplied with shipment, Third Party
Inspection is available.
Q3. What are the advantages of your company ?
A3: We have many professionals, technical personnel, more
competitive prices and best after-dales service than other steel
companies.
