RAL 5008 Grey Blue – Dark blue-grey PPGI color for modern building applications.
Galvanized Steel Substrate – Zinc coating provides practical corrosion protection.
Multiple Paint Systems – PE, SMP, HDP and PVDF coating options are available.
Customized Coil Supply – Thickness, width, gloss, texture and coil weight customizable.
Export Ready Service – MTC, color inspection, seaworthy packing, FOB, CIF and CFR available.
RAL 5008 PPGI is a grey blue prepainted galvanized steel coil designed for roofing sheets, wall cladding, sandwich panels and modern architectural products. It is produced by applying chemical pretreatment, primer, RAL 5008 top paint and protective back coating to a galvanized steel substrate.
The galvanized steel base provides forming strength and corrosion protection, while the dark blue-grey paint creates a restrained industrial appearance. The finished coil can be slit, cut, corrugated, pressed and roll-formed into different construction materials.
Henan GDD supplies RAL 5008 prepainted galvanized steel coils in customized thicknesses, widths, zinc coating weights, paint systems, gloss levels and surface textures. We support roofing sheet factories, sandwich panel manufacturers, wall cladding producers, construction material distributors and international project buyers.
| Item | Specification |
|---|---|
| Product Name | RAL 5008 PPGI / Grey Blue Prepainted Galvanized Steel Coil |
| Color | RAL 5008 Grey Blue |
| Base Material | Hot Dip Galvanized Steel Coil / Zinc Coated Steel Coil |
| Steel Grade | DX51D, DX52D, DX53D, SGCC, SGCH, S280GD, S350GD, Q195, Q235 or Customized |
| Standard | EN, ASTM, JIS, GB or Customer Specification |
| Thickness | 0.12 mm – 1.20 mm or Customized |
| Width | 600 mm – 1250 mm or Customized |
| Zinc Coating | Z30 – Z275 or Customized |
| Paint System | PE, SMP, HDP, PVDF or Customized Coating System |
| Top Paint Thickness | 10 μm – 35 μm or Customized |
| Back Paint Thickness | 5 μm – 25 μm or Customized |
| Surface Finish | Glossy, Matte, Low Gloss, Wrinkled, Embossed or Customized |
| Gloss Level | Low, Medium or High Gloss According to Customer Requirement |
| Back Coating Color | Gray, White, Beige, Blue or Customized |
| Protective Film | Available According to Processing and Surface Protection Requirements |
| Coil ID | 508 mm / 610 mm or Customized |
| Coil Weight | 3 – 8 MT or Customized |
| Edge Type | Mill Edge / Slit Edge |
| Processing Service | Slitting, Cutting, Protective Film, Color Matching and Roll-forming Support |
| Inspection | MTC, Dimension Check, Zinc Coating Test, Paint Thickness Check, Color Inspection and Third-party Inspection |
| Applications | Roofing Sheets, Wall Cladding, Sandwich Panels, Metal Tiles, Garage Doors, Fences and Modular Buildings |
| Packing | Standard Export Seaworthy Coil Packing |
| Trade Terms | FOB, CFR, CIF, EXW |
Available dimensions, zinc coating weights and paint specifications may vary according to the production standard and order quantity. Final color, gloss and surface texture should be confirmed through an approved physical sample before mass production.
RAL 5008 PPGI is a prepainted galvanized steel coil finished in the RAL 5008 grey blue color. It uses galvanized steel as the substrate and receives several coating layers through a continuous color-coating production line.
The typical coating structure includes the galvanized steel base, chemical pretreatment, primer, RAL 5008 topcoat and protective back coating. These layers work together to provide paint adhesion, forming performance, corrosion protection and the required surface appearance.
The material is widely used when a project requires a dark, muted blue-grey color instead of a bright blue, black or ordinary gray finish.
RAL 5008 is commonly known as grey blue. It is a dark blue-grey shade with a restrained and industrial appearance. The color is suitable for modern architectural designs, industrial buildings, warehouses, workshops and modular structures.
Its final appearance may be affected by the paint chemistry, gloss level, surface texture, lighting conditions and surrounding materials. A glossy RAL 5008 surface may show stronger blue tones, while a matte surface can appear darker and more neutral.
Digital screens and photographs may not accurately reproduce the finished coating. Customers with strict color requirements should approve a physical RAL card or coated steel sample.
Glossy RAL 5008 PPGI provides a smooth and reflective grey blue surface. It is suitable for roofing sheets, wall panels, doors, fences and general construction products.
Matte RAL 5008 PPGI has lower light reflection and a softer architectural appearance. It is widely selected for modern roofing, exterior cladding and prefabricated building projects.
Wrinkled PPGI has a textured paint surface that creates visual depth and helps reduce the visibility of minor handling marks. It can be processed into decorative roofing sheets and metal tiles.
Embossed PPGI has a mechanically formed surface pattern. It is suitable for decorative panels, doors, ceilings and specialized architectural components.
A removable protective film can be applied when additional protection against scratches is required during slitting, roll forming, handling or installation.
RAL 5008 PPGI coil is widely processed into corrugated roofing sheets, standing seam panels, metal roof tiles and roofing accessories for warehouses, industrial buildings, agricultural facilities and residential projects.
Wall cladding manufacturers use grey blue PPGI for exterior façade panels, interior partitions, liner panels and architectural wall systems.
Sandwich panel factories use RAL 5008 PPGI as the external or internal steel skin for EPS, PU, PIR and rock wool insulated panels.
The material can also be used for garage doors, rolling shutters, fences, gates, gutters, flashings, container houses, modular buildings, metal ceilings and decorative construction components.
RAL 5008 creates a dark and professional color suitable for industrial, commercial and modern architectural projects.
The zinc-coated substrate helps protect the steel base against moisture and atmospheric corrosion.
PE, SMP, HDP and PVDF coatings can be selected according to outdoor exposure, expected durability, color retention and project budget.
Properly specified PPGI can be slit, cut, corrugated and roll-formed into roofing sheets, wall panels and construction accessories.
Glossy, matte, low-gloss, wrinkled and embossed finishes are available for different architectural requirements.
Coil supply supports continuous roofing sheet production, sandwich panel manufacturing, slitting and automated roll-forming operations.
Polyester coating is an economical and widely used paint system. It provides practical adhesion, color appearance and forming performance for general roofing and wall panel products.
Silicone-modified polyester offers improved weather resistance and color retention compared with standard PE coating. It is suitable for outdoor construction products requiring enhanced durability.
High-durability polyester provides improved resistance to ultraviolet exposure and weathering. It is commonly selected for higher-quality roofing and exterior cladding.
PVDF coating provides strong weather resistance and long-term color retention for demanding architectural, coastal and industrial applications.
Paint selection should consider ultraviolet exposure, humidity, temperature, pollution, distance from the coast, expected service period and project budget.
PE coating is suitable for general construction products. SMP and HDP may be selected when improved weather resistance is required, while PVDF is commonly considered for demanding exterior architectural projects.
Buyers should also confirm primer type, top paint thickness, back coating, gloss level, coating flexibility and adhesion requirements before production.
The zinc coating beneath the paint system provides additional protection to the steel substrate. Common specifications include Z30, Z60, Z80, Z100, Z120, Z180 and Z275.
Lighter coating weights may be suitable for indoor or lower-exposure products. Medium and heavier zinc coatings are generally considered for roofing, external wall cladding and outdoor building materials.
Zinc coating selection should be based on the installation environment, expected service life, forming requirements and project specification.
RAL 5008 PPGI uses galvanized steel with a zinc coating as the substrate. It provides practical corrosion protection, good forming performance and economical cost for general roofing and wall panel production.
RAL 5008 PPGL uses Galvalume steel with an aluminum-zinc alloy coating. It may provide improved heat reflectivity and corrosion resistance in certain roofing and outdoor environments.
Both products can be supplied in the same grey blue color. Selection should be based on substrate specification, exposure environment, forming process, expected service life and budget.
RAL 5008 is darker and more muted than many common blue colors. It combines blue and grey tones, creating a more restrained appearance for modern and industrial buildings.
Brighter blue PPGI colors are more visible and are often selected for traditional industrial roofing. Darker grey blue colors may integrate more naturally with glass, concrete, stainless steel and dark architectural components.
The final color should be selected according to the building design, local market requirements and approved physical sample.
RAL 5008 contains a noticeable blue-grey tone, while anthracite gray colors normally appear more neutral or charcoal-like.
RAL 5008 is suitable when the project requires a dark surface with subtle blue character. Anthracite gray may be preferred when a more neutral dark-gray appearance is required.
Lighting and gloss level can significantly influence both colors, so physical sample comparison is recommended before final approval.
Small color differences may occur between production batches because of paint raw materials, coating system, gloss level and manufacturing date.
For projects where coils will be installed side by side, ordering the required quantity from one confirmed production batch is recommended.
Customers with strict requirements should provide an approved RAL color card, coated metal sample or project reference sample before mass production.
The paint coating must provide suitable flexibility and adhesion for the intended roofing or wall panel profile. Tight bends and complex corrugations may require specific substrate and coating properties.
Roll-forming equipment should be clean and properly adjusted to reduce scratches, pressure marks and paint damage. Forming pressure should match the coil thickness and profile design.
Henan GDD can arrange slitting, customized coil width, protective film and coil weight according to customer production equipment.
Buyers should confirm the required steel grade, thickness, width, zinc coating, paint system, top paint thickness, back coating, gloss level, surface texture and coil weight.
The product specification should match the intended forming process, installation environment and expected service period. Roofing and external cladding applications normally require more attention to zinc coating, top paint quality and weather resistance.
For an accurate quotation, customers should also provide the order quantity, acceptable tolerances, destination port and preferred trade terms.
Henan GDD supplies RAL 5008 PPGI coils to roofing sheet factories, sandwich panel manufacturers, wall cladding producers, construction material distributors and international project buyers.
We support customized thickness, width, steel grade, zinc coating, paint system, gloss level, surface texture, back coating, coil weight and seaworthy export packing.
From color confirmation and specification review to production, inspection, packing and loading, our team provides one-stop export support for RAL 5008 prepainted galvanized steel coil orders.
Before shipment, inspection can include steel grade, thickness, width, zinc coating, top paint thickness, back paint thickness, color, gloss, surface condition, coil ID, coil weight and packing.
Coating adhesion, bending performance, color difference, surface defects and protective film condition can also be checked according to customer specifications.
MTC, color inspection photos, product photos, packing photos, loading photos and third-party inspection support can be provided according to order requirements.
RAL 5008 PPGI coils are normally packed with waterproof paper, protective film, steel sheet covers, inner and outer edge protectors, steel straps and identification labels.
Standard export seaworthy packing helps protect the grey blue painted surface from moisture, scratches and impact during storage, container loading and ocean transportation.
Coil orientation, pallet support, label content and shipping marks can be customized. Commercial invoice, packing list, bill of lading, MTC and certificate of origin can be provided according to the agreed trade terms.
RAL 5008 is commonly known as grey blue. It is a dark and muted blue-grey color used for roofing, wall panels, doors and architectural components.
It is used for roofing sheets, wall cladding, sandwich panels, metal tiles, garage doors, fences, modular buildings and decorative steel products.
Yes. Glossy, matte, low-gloss, wrinkled and embossed RAL 5008 finishes can be discussed according to customer requirements.
Common paint systems include PE, SMP, HDP and PVDF. The appropriate option depends on project environment, durability requirements and budget.
Yes. It is widely used as raw material for corrugated roofing sheets, standing seam panels, metal roof tiles and roll-formed wall panels.
Yes. Removable protective film can be applied when additional scratch protection is required during processing, handling or installation.
Screen settings and lighting can change the visible color. A physical RAL card or coated steel sample should be approved when strict color matching is required.
Small differences may occur between paint and production batches. Using coils from the same confirmed batch is recommended for one continuous project.
Please provide thickness, width, steel grade, zinc coating, paint system, top paint thickness, gloss, surface finish, coil weight, quantity and destination port.
Yes. MTC, coating inspection, color photos, packing photos, loading photos and third-party inspection can be provided according to order requirements.
Looking for RAL 5008 grey blue prepainted galvanized steel coils for roofing sheets, wall cladding, sandwich panels or modular building production?
Send Henan GDD your required thickness, width, zinc coating, paint system, gloss, surface texture, coil weight, order quantity and destination port. Our team will provide a professional quotation and suitable export shipping solution.
