PPGL Coil
Your Premier PPGL Coil Manufacturer
Tianjin KaiDa Import & Export Co., Ltd. is a manufacturer specializing in the production of galvanized steel coils, aluminum-zinc coated coils, and roofing sheets. Our factory has three production lines with an annual output of 500,000 tons. We are also a professional international company engaged in the global sourcing and distribution of high-quality steel products. Our export sales include PPGI, PPGL, hot-dipped galvanized steel pipes, ERW black steel pipes, and other types of steel products.
Customized Services
Tianjin KaiDa Group is committed to providing value to clients — not only through our products but also through customized solutions. We can tailor products according to specific orders, fulfilling all customer requirements with our convenient one-stop service.
On-Time Delivery
With a mature logistics management system and a self-owned freight forwarding company, we ensure that our on-time delivery (OTD) rate reaches 100%.
Quality Certification
We are certified by TUV, SGS, and BV. All production processes strictly comply with international standards such as ASTM A53, BS 1387, JIS G3444, DIN 2440, API 5L, and GB/T 6728 to ensure high product quality.
Excellent After-Sales Service
Upon receiving the products, if you encounter any issues related to quality or packaging, please contact us. We will respond promptly to resolve the problem.
Prepainted Aluzinc Steel Coil
Pre-Painted Galvanized Steel Coil (PPGI) and Pre-Painted Galvalume Steel Coil (PPGL) is a kind of building materials, with galvanized sheet and aluzinc sheet as the substrate, after pretreatment (degrease and chemical treatment) and liquid dope with several layers of color, then firing and cooling, finally the palte steel is called pre-painted galvanized steel coil (PPGI) or pre-painted galvalume
Description
|
Product Name |
Prepainted Aluzinc Steel Coil |
|
Material |
JIS G3322 CGLCC ASTM A755 CS-B |
|
Surface coating color |
RAL colors |
|
Back side coatingcolor |
Light grey ,white and so on |
|
Type of coating process |
Front: Double coated&double drying. Back: double coated&double drying, single-coated&double drying |
|
Type of substrate |
Hot dipped galvanzied, galvalume, zinc alloy, cold rolled steel, aluminum |
|
Package |
Export standard package or as request |
|
Thickness |
0.11-2.5mm |
|
Width |
600mm to 1500mm |
|
Inside Diameter |
508/610mm |
|
Zinc coating |
40g/m2 to 275g/m2 |
|
Painting Coating Thickness |
Top: 8-35 um Back: 3-25 um |
|
Painting Color Style |
2/1,2/2 |
|
Coating introduction |
Top paint: PVDF, HDP, SMP, PE, PU Prime paint: Polyurethane, Epoxy, PE Back paint: Epoxy, Modified polyester |
|
Surface treatment |
Chromated and oiled, and ant-ifinger |
|
Hardness |
Softy , half hard and hard quality |
|
Coil weight |
3 Tons to 8 tons |
Paint property
|
Category |
180°T Bend |
Impact (J) |
Salt Resistance (h) |
MEK Scrub Resistance (times) |
Pencil Hardness |
60°Specular Glossiness of Coating |
Chromatism(△E) |
|
PE |
≤3T |
≥9 |
≥500 |
≥100 |
≥F |
10-85 |
≤0.8 |
|
SMP |
≤3T |
≥9 |
≥500 |
≥100 |
≥F |
10-85 |
≤0.8 |
|
HDP |
≤2T |
≥9 |
≥1000 |
≥100 |
≥HB |
10-85 |
≤0.8 |
|
PVDF |
≤2T |
≥9 |
≥1000 |
≥100 |
≥HB |
10-85 |
≤0.8 |
Advantages:
Durability:
Pre-painted Aluzinc steel coil is highly durable and can withstand harsh weather conditions, extreme temperatures, and high levels of humidity. It is resistant to corrosion, rust, and other forms of wear and tear, making it an ideal material for use in buildings and other construction works.
Cost-effective:
Pre-painted Aluzinc steel coil is highly cost-effective, as it can be produced in large quantities and used for various applications. It offers a high degree of affordability compared to other materials such as copper, aluminum, and stainless steel.
Aesthetics:
Pre-painted Aluzinc steel coil has a beautiful and attractive look, enhancing the overall appearance of the building. It comes in different colors, finishes, and textures, making it highly customizable to meet the customer's preferences and requirements.
Low maintenance:
Pre-painted Aluzinc steel coil requires minimal maintenance, saving time and money on maintenance costs. It is easy to clean, and the paint coating helps to prevent dust, dirt, and other debris from accumulating on its surface.
Energy efficiency:
Pre-painted Aluzinc steel coil can help reduce energy consumption in buildings. Its reflective surface helps to reflect sunlight and heat, reducing the need for air conditioning or other forms of cooling in hotter climates.
Sectional Structure of Prepainted Aluzinc Steel Coil
Base Metal (Substrate):
The base metal is usually galvanized steel or galvalume steel. Galvanized steel has a coating of zinc for corrosion resistance, while galvalume steel has a coating made from aluminum, zinc, and silicon.
Pretreatment Layer:
Before applying the primer and paint, the steel is cleaned and treated with a pretreatment solution. This layer provides good adhesion for the primer and paint and also enhances the corrosion resistance of the material.
Primer Coating:
The primer is applied to the treated base metal to further improve corrosion resistance and ensure that the topcoat adheres properly. The primer layer also provides a uniform surface for the topcoat.
Topcoat (Finish Coat):
The topcoat is the visible layer and provides color and aesthetic appeal. It also adds additional protection against the elements. The topcoat can be chosen for specific properties, such as UV resistance, flexibility, and hardness, depending on the application.
Backer Coat (Back Coat):
On the reverse side of the steel, a backer coat is applied. This layer is usually a thinner layer of primer or a specific backer coat that protects the steel and can enhance the adhesion of adhesives if the steel is to be laminated or bonded to other materials.
Protective Film (Optional):
Some prepainted steel products may have a removable protective film applied to protect the finished surface during transportation and installation.
Cleaning and degreasing: The steel coil is first cleaned thoroughly to remove any rust, oil or other debris from the surface.
Surface conditioning: Once the steel has been cleaned, the surface is treated with chemicals to improve its adhesion qualities.
Priming: A layer of primer is applied to the surface to promote better adhesion between the steel and the paint.
Painting: The steel coil is then painted with one or more layers of paint. The paint is carefully chosen to ensure durability, weather resistance and aesthetic appeal.
Curing:
Once painted, the steel coil is subjected to high temperatures in special ovens to promote curing and ensure the paint adheres properly to the surface.
Cooling:
After the curing process, the steel coil is allowed to cool down to room temperature.
Final inspection:
The final product is inspected for any defects, and any necessary corrections are made as needed.
The substrate of a pre-painted steel coil refers to the base metal onto which the paint and other coatings are applied during the coil coating process.
The choice of substrate is critical because it must possess the necessary mechanical properties and corrosion resistance for the intended end use.
The most common substrates used for pre-painted steel coils are:
Hot-Dip Galvanized Steel (GI): This substrate is steel that has been coated with a thin layer of zinc to provide corrosion resistance. The zinc coating is applied through a hot-dip process, where the steel is submerged in a bath of molten zinc. The zinc layer protects the steel by acting as a barrier to corrosive elements and by providing sacrificial protection where the coating is damaged.
Galvalume Steel (GL): Galvalume is a coating made of a combination of aluminum, zinc, and a trace amount of silicon, which is applied to steel. The presence of aluminum in the coating provides excellent protection against corrosion, especially in more extreme environments, and the zinc offers additional protection by galvanic action.
Electro-Galvanized Steel (EG): This type of steel is galvanized using an electrochemical process, which provides a zinc coating that is uniform in thickness and has a smooth finish. Electro-galvanized steel is commonly used where precise and aesthetic applications are needed.
Quality Control
Production scheduling:
All quality details required by customers, such as (RAL)color, glossiness, paint film thickness, weight per meter, width, roll length, roll weight, package as well as tolerance and delivery time, should be clearly recorded in the production sheet.
Following up manufacturing:
According to the requirements of the production schedule and the workshop operation standards, the production will be completed step by step to ensure that the quantity, quality, packing and delivery time are in conformity with the requirements of the buyers and relevant international standards.
Quality Inspection:
All goods will be inspected after finishing manufacture, a series of tests will be carried out, such as pencil hardness test, scribing hardness (also known as scratch hardness test), cut test, coating thickness measure, glossiness measure, impact test, moisture resistance test, MEK test, and visible spectrophotometer test. Survey report will be issued and presented to clients. We ensure that all products conform to the requirements of the order and relevant international standards.
Package:
Packing Details: Bundle with steel strip, shipped in wooden cases or wooden pallets
Delivery Details: Use trays to facilitate loading and unloading
Standard Export Seaworthy Package.
Or Package can also according to your requirements
Leading Time:
Within 7-10 days after receipt of advance payment
Quality Certificate
FAQ
Tianjin Kaida Import&Export Co.,Ltd is one of the most professional ppgl coil manufacturers and suppliers in China, specialized in providing high quality products with low price. We warmly welcome you to buy discount ppgl coil from our factory. For more cheap products, contact us now.
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