PPGI Steel Coil is a kind of colour coated steel coil (PPGI coil). It uses galvanised steel as the base metal. The zinc layer is highly resistant to corrosion. Together with the coating, it is more durable than galvanised steel. The metal coated steel then undergoes several cleaning procedures, pre-treatment solutions, and finally a multi-layer organic coating including laminates, vinyl dispersions and paint. This continuous technique of applying different coatings is known as coil coating. As a result, the steel coil is used in the finished product without the need for painting or finishing.
For more information, please visit PPGL Coil For Construction Panels.
PrePainted 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 (PPGI) or pre-painted galvalume steel coil(PPGL).
Galvanised steel coils are used in a wide range of different areas and applications. You can find it in metal roofing panels, microwave ovens, automotive trim panels, telecoms cables and much more.
It is also used in construction, home appliances, transportation, windows, doors, refrigerators and so on. It can also be further processed for other use as colour coated coil/sheet substrate, steel strip substrate and so on.
Benefits of galvanised steel coils
1. Cost
Firstly, the overall cost of galvanising is low compared to other coatings. In addition, galvanised steel coils are ready for use on delivery. It does not require additional surface preparation, inspection, painting or coating.
2. Durability and reliability
Galvanised steel is usually made from hot-rolled or cold-rolled steel coils as a base material. The steel is strong and the galvanised coating is robust and durable.
3. Corrosion and rust protection
The main benefit of galvanised steel coil is its corrosion and rust protection properties. The iron in steel is a highly reactive chemical that tends to rust. However, the addition of zinc acts as a protective buffer between the steel and moisture or oxygen. The zinc coating thus acts as a barrier against external attack and will sacrifice itself to protect the steel beneath.
4. Life expectancy
After galvanising, GI coils have a life expectancy in the working environment of well over 50 years, and can last for over 20 years in severe water exposure situations.
5. Full protection
every inch of the galvanised steel coil is protected against damage, including grooves, sharp edges and hard-to-reach areas.
6. Easy to inspect
The product’s simple construction design makes it easy to assess with the naked eye and allows for simple non-destructive thickness measurement methods.
How do I choose the right PPGI steel coil?
For more flower cold rolled prepainted steel coilinformation, please contact us. We will provide professional answers.
With its excellent properties, PPGI steel is widely used in construction, household appliances and light industry. Due to its different applications and environments, special attention should be paid to the selection of the right PPGI steel coils. the sales staff of Jianhui Steel Supply, with their professional knowledge and experience in communicating with customers, summarise four aspects.
1. Coating hardness: Coating hardness refers to the ability of the plating to resist scratch, friction, crash or other mechanical action, and PPGI steel coil scratch resistance, wear resistance is closely related. Mainly through the use, processing methods, storage conditions and other options.
2. Coating thickness: The thickness has intimate connection with the corrosion resistance of ppgi steel coil, and the corrosion resistance usually improve with the increase of coating thickness. The coating thickness should be confirmed by the environmental corrosiveness, service life and durability.
3. Coating colour difference: There will possibly to occur color difference during the produce and use process of the ppgi steel coil. The color difference is influenced by the production organization, color, use time, use environment and other factors.
4. Coating gloss: Gloss mainly choose based on the use and use habits. For example, the building-use ppgi steel coil always choose middle or low gloss, and household appliance ppgi steel coil always choose high gloss.
5. Coating gloss: gloss is mainly based on the use and use habits to choose. For example, PPGI steel coils for construction are always selected for medium or low gloss, and PPGI steel coils for household appliances are always selected for high gloss.
PPGI Coils are available in a wide variety of colors, how to choose the right color for you among the many PPGI Coils ? Avoid its color difference, let's come together to understand it.
Color Coated Plate Coating Color Selection:
the choice of color is mainly to consider the match with the surrounding environment and the user's hobby, but from the point of view of the use of technology, light-colored coatings of pigments to choose a large margin of choice, you can choose superior durability of the inorganic pigments (such as titanium dioxide, etc.), and coatings with a strong thermal reflectivity (reflectivity coefficient of the darker coatings up to double the summer coatings) the temperature of the coatings themselves are relatively low, which is beneficial to the extension of the life of the coatings This is beneficial to the coating life extension.
In addition,
I remind even if the color coated coil coating discoloration or chalking, light color coating film changes with the original color of the contrast is small, the impact on the appearance is not big. The dark color (especially the more bright colors) using organic colors mostly, easy to fade when exposed to ultraviolet radiation, short of 3 months to change color. For color coated steel, usually coating and steel plate thermal expansion rate is different, especially the metal substrate and organic coating of the coefficient of linear expansion of the difference is large, when the ambient temperature changes, the substrate and the coating interface will be combined with the expansion or contraction of the stress, if not properly release the coating cracking will occur.
Here To Illustrate Two Points Of The Current Domestic Market Selection Of Misunderstanding:
1.A Large Number Of White Primers Currently Exist In China.
The purpose of using white primer is that the thickness of the topcoat can be reduced, because normal corrosion-resistant primer for construction is yellowish-green in color (hence the strontium chromate pigment), and there must be a sufficient thickness of topcoat.
2.the same project of color coated steel plate for construction project using different vendors,
different batches of color coated steel plate, in the construction of seemingly the same color, but after a few years of sunlight, different coatings of different vendors of different color change trend is different, resulting in a serious color difference, there are too many examples of this. Even if the products of the same supplier, it is strongly recommended to order for the same project at one time, because it is possible to use the products of different coating suppliers for different batches, which increases the possibility of color difference.
Author: Bella Niu
The Introduction Of Author I am a very very enthusiastic person and I am very very glad to help you if I have any chance. If you have GI, PPGI, GL, PPGL , Roofingsheet steel industry confusion, or If you have steel internet marketing questions, or 2024 a direction, or you have ideas to make investments in 2024, or you are making adjustments, you're not quite clear, welcome to come to Jianhui Steel Bella for advice as soon as possible. If you need steel welcome to contact us! Email: sales@jianhuissteel.com
WhatsApp:+86 132 1317 8890
Are you interested in learning more about hot dipped galvanized coil for sandwich panels? Contact us today to secure an expert consultation!