PPGL Sheet Coil

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What's the Pre-Painted Galvalume Steel(PPGL)?

PPGL sheets and coils are processed by coating with zinc, silicon, and aluminium. More precisely, the ingredients of the galvalume steel sheet have at least 55% aluminium and 43.5% zinc, with the rest being silicon and other elements. PPGL sheets can be used as roofing in addition to chimney pipes or ovens owing to their corrosion resistance, good heat resistance, and surface conductivity.

According to the shape, we divide prepainted galvanized steel into coil and sheet.

Benefits of PPGL Sheet Coil

There are many benefits to purchasing pre-painted galvanized iron for your project, including:

• Any shape can be created such as curved, rectangular, oval and tubular. Available in a variety of color ranges to choose from
• Improve durability
• Provide convenient cleaning facilities
• affordable maintenance
• Tensile properties provide sufficient strength to cover roofs, awnings and sheds.

PPGL Sheet Coil Colors

The common colors include brick red, blue, green, grey, etc. Both glossy and matte colors are available. Also, there are different printed patterns to choose from, such as flower, grass, brick, wood grain, etc. You can also send us patterns for custom design. Pre-painted steel can be formed into almost any shape, and it has excellent resistance to weathering, superior longevity and texture options.  Email us now!

PPGL Sheet Coil Colors

Typical top-coating materials

• Epoxy
• Regular Modified Polyester (Rmp)
• Silicon Modified Polyester (Smp)
• High Durable Polyester (Hdp)
• Pvdf/Pvf2(Poly Vinylidene Fluoride)
• Plastisol
• Pupa / Ars
• Anti-Bacterial
• Self-Cleaning/ Anti Dust
• Wrinkle Finish Anti Skidding

Structure of PPGL Sheet Coil

The process of manufacturing PPGL involves multiple steps. From top to bottom, it consists of the top coating layer, primer coating, pre-treatment coating, Al -Zn coating, base metal, Al-Zn coating, pre-treatment coating, primer coating, and top coating. The base metal is the most inner part, which often uses cold rolled steel, which is covered with Al-Zn coating. This is the GL sheet. Then PG sheets will be cleaned and degreased to form a layer of passivated metal chromate on the surface, which makes it easy to paint. A primer is a preparatory coating on materials to ensure better adhesion and also provide additional protection. While the finish coat makes the surface smooth and good-looking. Generally, the top coating is thicker than the back coating. Here is a picture for your reference.

Structure of PPGL Sheet Coil

PPGL Sheet Coil Production Process

It is very similar to the manufacturing process of PPGI. It starts from uncoiling, welding, pretreatment, primer painting, baking, cooling, twice-painting, baking and cooling again, quality control, and coiling for sale.

PPGL Production Process Flow

Application

PPGI Coils exhibit high degrees of strength and dimensional accuracy for use in various manufacturing industries spanning a wide range of sectors as mentioned below:

• Roofing and Cladding (Single Skin)
• Sandwich Panel (Double Skin)
• Automatic Doors
• Farm Equipment, Greenhouses, Silos, Barns
• K Span
• Fencing
• Lighting
• Ceiling accessories
• Internal partition
• Cold Rooms, Shelves, Water Chillers, Water Coolers, Water Heaters & HVAC units
• Shipbuilding industry
• Vehicle manufacturing industry
• Home appliance industry
• Designing, Interior Cladding
• Steel furniture
• White & brown Goods
• Kitchen appliances such as Ovens, Ranges, Sinks, Kitchen Units, Shelves, Toilet Strands, and Cooker Wrapper

Differences Between PPGI And PPGL

• Cost -- PPGI sheets cost less than PPGL sheets.
• Various Base Metal -- PPGL is with galvalume sheet as substrate, which is coated with 55% aluminum, 43.3% zinc, and also 1.6% silicon. This is the main distinction between PPGI as well as PPGL.
• Durability -- PPGI sheets are poorly compared to PPGL sheets when exposed to natural influences such as water. PPGL sheets may last beyond 10 years in good condition. They do not easily rust and do well. The lifespan of PPGL is almost double that of PPGI.
• Thickness and weight -- Generally, PPGI sheets are lighter than PPGL sheets. The thickness however is dependent on the coating applied.
• Finish -- PPGL sheets possess a smoother finish in comparison with PPGI sheets which can be directly caused by the aluminum component in PPGL which PPGI sheets do not have.
• Corrosion resistance -- PPGL sheets are more corrosion resistant. When a PPGL sheet is cut, its edges become exposed which makes it more vulnerable to corrosion. PPGI is quite likely to become corroded.

Qinghe Steel stocks a wide range of PPGL coils and PPGI sheet sizes for your specific project needs. We offer quick delivery throughout the world. Contact us today to discuss PPGL coils and PPGI sheet for your project needs.