GB/T 12754 Standard: High-Performance PPGI from China’s Leading Manufacturer
Our GB/T 12754 Prepainted Galvanized Steel Coils are produced in strict accordance with the Chinese National Standard for “Prepainted steel sheet and strip for building uses.” As a direct manufacturer, Bomis Steel leverages advanced continuous color coating lines to deliver PPGI that balances structural strength with superior aesthetic finishes, making it the premier choice for global infrastructure and industrial warehousing.
Understanding the GB/T 12754 Specification
The GB/T 12754 standard is renowned for its rigorous classification of coating types and performance metrics. Our production process focuses on the three critical elements defined by this standard:
Substrate Reliability: We utilize high-quality hot-dip galvanized steel (consistent with GB/T 2518) as the base metal, ensuring a robust zinc iron alloy layer that prevents lateral corrosion.
Coating Designations: We offer specialized coatings including PE (Polyester), SMP (Silicone Modified Polyester), HDP (High-Durability Polyester), and PVDF (Polyvinylidene Fluoride), each tailored to specific atmospheric corrosivity categories.
Grade Variety: From commercial grades (TDC51D+Z) to structural grades (TS280GD+Z), we provide the exact mechanical properties required for diverse forming needs.
Key Technical AdvantagesOptimized Formability:
Excellent T-bend performance ($\leq 3T$) ensures no paint cracking during the manufacturing of roofing tiles or sandwich panels.Surface Versatility: Available in regular gloss, high gloss, matt, or embossed textures to meet varied architectural aesthetics.Direct Manufacturer Pricing: By eliminating middleman costs, we provide “China Manufacturer Direct Prices” without compromising on GB/T standard compliance.
Technical Specifications (GB/T 12754)
| Item | GB/T 12754 Requirement | Bomis Steel Standard |
| Substrate Type | Hot-dip Galvanized / Galvalume | Grade A Prime Quality |
| Zinc Coating | 40g – 275g/$m^2$ | Customizable per request |
| Pencil Hardness | $\geq$ HB – 2H | High Scratch Resistance |
| MEK Resistance | $\geq$ 100 double rubs | Superior Solvent Resistance |
| Impact Resistance | $\geq$ 9J | Excellent Coating Toughness |
Product | GB/T 12754, Prepainted Galvanized Steel Coil |
Front color coating | Prime : 5 μm + top coating : 5-25 μm |
Back color coating | 5-20 μm |
color | As RAL or as customer's sample. |
Paint | PE,SMP.HDP,PVDF. |
Thickness (mm) | 0.12-1.5 mm (±0.02 mm) |
Certification
product testing
After the products are completed, they will undergo strict inspections before being packaged.
Why Choose Bomis PPGI Steel Coils?
Superior Durability: Our coatings use high-quality pigments that resist fading and chalking for up to 15-20 years.
Precision Coating: We use advanced double-coat and double-bake (2C2B) processes to ensure uniform thickness and excellent adhesion.
Advanced Testing: Every batch undergoes rigorous testing, including the T-bend test, Pencil hardness test, and Salt spray test.
Customization: From matte finish to wood grain patterns, we provide versatile surface treatments to meet your architectural needs.
GB/T 12754 PPGI Steel Coil Application Scenarios
The prepainted galvanized steel coil, compliant with the GB/T 12754 standard, is suitable for mainstream applications in South America and Southeast Asia, primarily in the construction, industrial, and consumer sectors. These applications are highly compatible with the local climate and infrastructure needs.
Construction Sector (Highest Proportion)
Building Facades/Roofs: In the tropical/subtropical climates of South America and Southeast Asia, characterized by high temperatures, high humidity, strong UV radiation, and heavy salt spray in coastal areas, products conforming to GB/T 12754 with high-weather-resistant coatings (HDP/PVDF) can resist environmental corrosion. Customizable colors can also match local architectural styles, such as the facades of resort hotels in Southeast Asia and the roofs of residential buildings in South America.
Interior Decoration: Partition walls, ceilings, and decorative panels in shopping malls, office buildings, and residences. The standard requirements for dimensional accuracy and coating adhesion ensure aesthetics and durability after installation. Products with ordinary polyester coatings can meet these needs.
Temporary Buildings/Modular Buildings: Temporary dormitories at local infrastructure project construction sites, temporary housing after disasters. These scenarios require rapid construction. Standard-compliant products have good processing performance, and their corrosion resistance ensures the service life of temporary buildings.
Product Showcase
FAQ about PPGI
1.what is GB/T 12754 Galvanized Coil
GB/T 12754 is a Chinese standard specifying requirements for steel sheets and strips. It covers coils or sheets made from galvanized steel (GI, such as DX51D+Z) as the base material, which are then coated with an organic coating (such as polyester PE, epoxy EP) after surface treatment and curing. These products possess both decorative and corrosion-resistant properties. Applications include building exterior panels, roofing panels, partition panels, appliance casings, and advertising signs.
2.Are you a manufacturer or a trading company?
We are a factory with over 10 years of sales experience
3.How do you guarantee the quality?
1) Sourcing only from top-tier, certified mills.
2) Conducting our own rigorous in-house QC checks.
3) Providing a formal Mill Test Certificate and our quality warranty for every shipment.
