Color-coated aluminum coil

Color-coated aluminum coil refers to painting and coloring the surface of aluminum coil. Many are commonly used, such as Polyester (PE) color-coated aluminum coil, high durable Polyester color-coated aluminum coil, fluorocarbon (PVDF) color-coated aluminum coil, etc. It is widely used in aluminum-plastic panels, roofs and walls, blinds, composite panels, aluminum ceilings, decorative lighting, cans, furniture, etc.

Color-coated aluminum coil has a rich color range and can be applied whether in civil residences, large commercial outlets or large-scale exhibition centers. Its good plasticity and machining performance make it an ideal material for various architectural image. Color-coated aluminum coil not only provides architects, designers and owners with a space for personalized exterior walls and colorful ceilings, but also becomes the most ideal material for architectural image.

The process of color-coated aluminum coil is that after multiple baking and coating on the surface of aluminum plate, the formed polyester (PE), HDP resin (High durable Polyester) or fluorocarbon coating (PVDF) can form a continuous solid film which can be firmly attached, with protective and decorative features. It is an anti-UV coating. Polyester resin uses the ester bond-containing polymer resin in the main chain as the monomer, and adds alkyd resinglycerol-phthalic resin. UV absorbers can be divided into matte and high-gloss series according to the gloss. The products have rich color, good gloss and flatness, as well as superior texture and feel, increasing the sense of layering and three-dimensionality. The coating can not only withstand ultraviolet radiation, wind, rain, frost, snow and freezing, but also temperature differences, freeze-thaw cycles, corrosive gases and microorganisms.

Features of color-coated aluminum coil


Because of the features of aluminum plate, the surface after painting is smooth, with good gloss, no roller marks and beautiful appearance.


Color-coated aluminum panels have various patterns, such as wood grain, marble veins, and many printed patterns, which can also be customized according to customer requirements.

3.Durability and long service life

Because aluminum plate has corrosion resistance and its surface coating is formed by high temperature baking, its gloss retention is high, the color stability is good, and the chromatic aberration is little. The service life of polyester (PE) paint can reach 7-10 years, high durable Polyester paint can reach more than 15 years, and polyvinylidene fluoride (PVDF) paint can reach more than 20-25 years.

4.Excellent machining performance

Due to the good ductility and bending performance of aluminum, it can be processed and bent into various angles. In the four seasons, changes in wind pressure, temperature, humidity and other factors will not cause it to bend, deform, expand, etc.

5.Environmentally-friendly and recyclable

Aluminum has strong corrosion resistance, so it will not produce pollution and then protect the environment, and 80% materials can be recycled after the use.

Introduction of Hungthai Metal Prepainted Galvanized Steel Coil

Hungthai Metal is a professional steel manufacturer and exporter. This article will introduce our company’s color coated steel coil.

Color coated steel coil is also called prepainted galvanized steel coil, PPGI, PPGL in China, as a PPGI and PPGL manufacturer and exporter in China, we use our own high-quality galvanized steel coil and galvalume steel coil to produce color coated steel coil.

Our products have the following advantages:

1. Advantages of substrates

We have our own production line of hot dip galvanized steel coil and hot dip galvalume steel coil.

It can be customized according to customer requirements. The specifications we can produce are 0.12mm-2.0mm*40-1250mm, the thickness of the zinc layer is Z30-Z270, and the thickness of the aluminum-zinc layer of the galvalume steel coil can reach AZ30-AZ150.

So we are also a galvanized steel coil exporter in China.

2.The advantages of paint

Our factory has cooperated with famous paint brands in the world, and can customize various brands of paint for customers, such as: AKZONOBEL, Nippon Paint, PPG, VALSPAR, KCC, etc.

We can also customize different types of paints according to the customer’s use environment, such as ordinary PE paints, as well as high-end SMP, HDP, PVDF paints, to meet the customer’s life requirements for color coated steel coil.

3.Advantages of the production line

Our PPGI production line is produced with the latest advanced technology, and the key core parts use the most advanced equipment in the world, such as the electrical control system of Siemens in Germany, the sensor of Siemens, the control motor of General Electric in Germany, etc., which makes our color coated steel coil production capacity. It can reach 30,000 tons per month, and the board surface is more flat, and the processing performance is more excellent.

With the printing system designed by us, we can also produce printed color coated steel coils of various colors in addition to the ordinary color coated steel coil. We can also customize the colors according to the requirements of customers.

4.Rigorous quality inspection

We will carry out strict quality inspection on the PPGI we produce, such as T-bend test, reverse impact test, MEK wiping, UV aging resistance test, smoke test, glossiness building materials, color difference test, etc.

So as to ensure that the PPGI produced can meet the various requirements of customers.

We have also established a unique quality traceability system to ensure that the quality of the products we produce can be traced to protect the interests of customers to the greatest extent.

The above are the advantages of our PPGI PPGL, welcome to inquire about our color coated steel coil PPGI PPGL.

As a qualified PPGI manufacturer in China, a qualified ppgi coil exporter in China, we will tailor the best prepainted galvanized steel coil, PPGI, PPGL for you.

Hungthai Metal looks forward to cooperating with you.


T-bend test of PPGI quality inspection

In the mind of Hungthai Metal, quality is the first and foremost condition.

Before delivering color coated steel coil to the customer, we will do various tests to ensure that the quality of PPGI are all meet the customer’s requirements. This is the most important and what we must be done as the PPGI manufacturer and exporter in China.

Now, we will introduce the T-bend test , which is essential for quality inspection.

The purpose of the T-bend is to test how flexibility of painting film on color coated steel coil, PPGI and PPGL.

It is one of the important items to evaluate the physical properties of color coated steel plate coating by determining the anti-cracking or peeling ability of the layer when the sample is bent.

During the test, need clamp the color coated steel coil sample on the bending instrument, then fold it in half towards the outside of the paint film.

After loosening, fold the sample 180″ in half, and tighten it with the bending instrument to make it completely parallel. If the coating is not cracked, it means it is 0T, stick it with 3M tape to check whether the adhesion of color coated steel coil and PPGI paint film is qualified or not. Under such condition the T-bend test is the corresponding detection value.

Due to our advanced galvanized and galvalume steel coil substrate pretreatment technology and high quality painting, our color coated steel coil, PPGI and PPGL are all can be reached up to 1T for the top coating and 2T for the back coating.

Color coated steel coil, PPGI and PPGL made by Hungthai Metal, are all have excellent processing performance, and can be post-processed into roofing tiles of various shapes, suitable for various roofing tiles machines.

Our PPGI, PPGL and color coated steel coil will certainly do other product testing, we will introduce it in the following articles, welcome to follow us!

matte wrinkle steel coil (1)