RAL6018 PPGI Coil

RAL6018 PPGI Coil is a popular steel material in the market because of its corrosion resistance, beautiful surface, and direct process. Meanwhile, it is widely used in home appliances, construction, and corrugated sheets. It is yellow-green, and it has an attractive appearance. Besides that, we can supply all RAL colors. As a premium supplier and manufacturer, Wanzhi Steel also accepts specifications for thickness, film thickness, and width. We also offer various surface treatments and machining options such as striping and perforation. If you’re interested, please contact us to learn more.

Specification

Item	RAL6018 PPGI Coil
Place of Origin	Shandongi, China
Standard	AISI, ASTM, DIN, JIS, GB, EN
Substrate	Galvanized steel
Zinc Layer	30g-275 g/㎡
Grades	DX51D+Z, DX52/53/54D+Z, S280GD+Z, S350GD+Z, S550GD+Z, SECC, etc.
Aliases	Prepainted galvanized steel coil, color-coated GI coil
Thickness	0.13 mm-1.5 mm
Width	600 mm-1,250 mm
Coil Weight	3-6 tons (can be customized)
Paints	PE, SMP, HDP, PVDF
Paint Thickness	Top: 10-35 μm   Back: 5-14 μm
Colors	RAL 6018
Diameter	Φ508 mm/Φ610 mm
Annually Production	320,000 tons
Value-added Services	Slitting, cutting, stamping, bending, profiling, and other
Delivery Time	Within 10-30 days after receiving the deposit
Sample	Free Available
Payment term	TT 30% Advance + 70% Balance
Price Item	FOB, CIF, EXW, CFR, etc
Packing	Standard export packaging
Certification	ISO 9001, SGS, ABS, BV
MOQ	5 tons

Advantages

1. Good durability, corrosion resistance, and compared with galvanized steel sheets with longer service life.

2. Good heat resistance, compared with galvanized steel sheets at high temperatures is less easy to fade.

3. Excellent thermal reflectivity.

4. The color-coated coil has a processing performance and spraying performance similar to that of galvanized steel sheet.

5. With excellent welding properties.

Green Series PPGI Coil Production Video

Application

Building Exteriors and Roofs

Its yellow-green hue is suitable for building exterior decoration. Its infrared reflective coating technology reflects approximately 50% of infrared energy, reducing roof temperatures by 50°F (28°C) compared to traditional materials and reducing air conditioning and cooling requirements.

Appliance Housings

It is used in the manufacture of components such as refrigerator drawers and rice cooker housings. Through mineral reinforcement and toughening modification, this material can replace ABS and polystyrene.

Transportation Equipment

It is used in the housing and structural components of automobiles and rail transit vehicles. For example, over 75% of aluminum alloy bracket structures are made of wrought aluminum alloy, and RAL6018 PPGI Coil improves transportation efficiency through lightweight design.

Insulation and Energy Saving Systems

RAL6018 coating incorporates infrared reflective pigments, achieving a solar reflectivity of 25-30%, six times that of ordinary black pigment. This property makes it an ideal choice for roof insulation coatings.

Outdoor Facilities and Protection

Its weather resistance significantly extends its service life in harsh outdoor climates, making it suitable for equipment used outdoors year-round, such as air conditioner outdoor unit housings and heater vents.

Industrial and Commercial Facilities

RAL6018 PPGI Coil is used in microchannel heat exchangers in data centers, cold chain logistics, and other fields. For example, its application in heat pump water heaters improves cooling efficiency.

Paint Type

At Wanzhi Steel, we can supply you with four types of coatings.

PE: Good adhesion, rich color, wide range for formability and outdoor durability, medium chemical resistance, and low cost.

SMP: The toughness, abrasion resistance, and heat resistance of the coating film are good, the outdoor durability and powder resistance is good, the gloss retention is good, the flexibility is average and the cost is moderate.

HDP: Very good color retention and UV stability, very good outdoor durability and powder stability, good film adherence, rich color, very good value.

PVDF: Outstanding color retention and UV stability, excellent outdoor durability and powder stability, excellent solvent stability, easy to form, dirt resistance, limited color, and expensive.

Pre-painted Galvanized Steel Coils In Different Colors

Substrates

Usually, Customers choose to use hot-dip galvanized sheets or electro-galvanized steel sheets as raw material to produce pre-painted galvanized steel coils. The specific details about hot-dip galvanized sheets or electro-galvanized steel sheets are as follows:

1. Hot-dip Galvanized Sheets

Hot-dip galvanized color-coated sheets are the product obtained by applying an organic coating to hot-dip galvanized steel sheets. In addition to the protective effect of the zinc, the organic coating on the surface also plays a role in insulation protection and the prevention of rust, and the service life is longer than that of the hot-dip galvanized sheet.

2. Electro-galvanized Sheets

Electro-galvanized sheet as the substrate, coated with organic coating baking products for electro-galvanized color coated sheet, because the zinc layer of electro-galvanized sheet is thin, usually contains zinc content of 20g/m², so the product is not suitable for use in outdoor production of walls, roofs, etc. However, it can be mainly used for home appliances, audio, steel furniture, interior decoration, and so on because of its beautiful appearance and excellent processing properties.

What Is PPGI?

PPGI is the short form for pre-painted galvanized iron, also called pre-coated steel, color-coated steel, etc. PPGI coils use galvanized steel sheets as substrates, After the pre-treatment of the surface, the surface is coated with one or more layers of organic coatings of different colors, which are referred to as color coating rolls. They are mainly used in the construction industry, the home appliance industry, the electrical appliance industry, the furniture industry, and so on.

Item	PPGI Coil
Substrate Grades	Galvanized steel，DX51/52/53/54D+Z,
Thickness	0.13 mm-1.5 mm
Width	600 mm-1,250 mm
Coil Weight	3-6 tons (can be customized)
Painting Types	PE, SMP, HDP, PVDF
Painting Thickness	Top: 10-35 μm    Back: 5-14 μm
Zinc Coating Thickness	30-275 g/㎡
Colors	As per RAL color (custom patterns are available)
Diameter	Φ508 mm/Φ610 mm
Package	Standard Export Package

Coated Coil Manufacturing Process

1. Surface Treatment

To prepare the substrate for the next coating step, it is first surface treated. The surface treatment process includes oil removal, pickling, alkali washing, phosphoric acid treatment, and other processes. These processes can improve the adhesion and corrosion resistance of the substrate surface while effectively removing impurities such as dirt and oxide films from the substrate surface.

2. Coating Production

The production process for color-coated steel sheets consists of three key steps: first, applying an epoxy or polyester primer to enhance adhesion, then applying a PVDF/PE/HDP topcoat to achieve the desired color, and finally, applying a clearcoat to enhance gloss and stain resistance. This process ensures product durability while meeting the demands for a wide range of colors and finishes.

3. Curing

Upon completion of the coating process, the color-coated steel coil must be cured by baking. During the baking and curing process, the color-coated steel coil is placed in a high-temperature oven. Different temperatures and times are set according to the different materials selected. Curing improves the performance indicators such as weather resistance, hardness, and adhesion of the color-coated steel coil by allowing the coating material to fully react and cross-link.

4. Cutting and packaging

After the above process, it is necessary for the color-coated steel coil to be cut and packaged after production. Cutting is mainly according to customers’ needs and product specifications to cut the color-coated steel coil into the required size. Packaging is to avoid external pollution and damage by cutting the color-coated steel coil for packaging.

RAL6018 PPGI Coil Supplier- Wanzhi Steel

Regarding pre-painted galvanized steel coils, Wanzhi Steel is a leading manufacturer and wholesaler. We have our own factory and two PPGI coils production lines with 200000 tons of annual output. After 14 years of development, our pre-painted galvanized steel coils have been sold to more than 100 countries and regions in the world. And won praise from the customers.

Conclusion

RAL6018 PPGI coils are hot-selling in our company because of their pretty appearance,  high corrosion resistance, and long service life. And widely used in the construction industry, home appliances, furniture, etc. Besides the color, the pattern can also be customized, such as stone, brick, wood, grass, traffic, camouflage, and other patterns.

If you want a specific design pattern, please send us a sample, then we will produce it for you at competitive prices. Welcome to contact us and look forward to becoming our next partner