Corrosion Resistant Color Coating - Mill Direct Supplier
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of Corrosion Resistant Color Coating
| Property | Parameter | Description |
|---|---|---|
| Product Name | Corrosion Resistant Color Coating Steel | Pre-painted galvanized/galvalume steel with enhanced anti-corrosion coating |
| Material Grade | DX51D, DX52D, DX53D / SGCC, SGCD | Equivalent to ASTM A755, EN 10169, JIS G3312 substrate grades |
| Standard Compliance | ASTM A755 / EN 10169 / JIS G3312 / GB/T 12754 | Meets international pre-painted steel coil standards for corrosion resistance |
| Chemical Composition (Substrate) | C ≤ 0.12%, Mn ≤ 0.60%, P ≤ 0.045%, S ≤ 0.045%, Si ≤ 0.50% | Low-carbon steel base ensuring formability and coating adhesion |
| Coating Type | Polyester (PE), PVDF, SMP, HDP, Epoxy | Top coat options selected based on corrosion environment and UV resistance requirement |
| Coating Thickness | Top coat: 15–25 µm; Primer: 5–7 µm; Back coat: 5–12 µm | Measured per ASTM D1400 / EN ISO 2808; total DFT varies by specification |
| Zinc/Aluminum Coating Mass | Z60–Z275 g/m² (Galvanized); AZ50–AZ150 g/m² (Galvalume) | Per ASTM A653 / A792; heavier coating improves base metal corrosion protection |
| Tensile Strength | 270–500 MPa | Per EN 10169 / ASTM A755; varies by substrate grade and temper |
| Yield Strength | 140–420 MPa | Minimum yield strength per applicable substrate standard |
| Elongation | ≥ 16–30% (A80mm) | Ensures formability during roll forming, bending, and profiling operations |
| Thickness Range | 0.14 mm – 1.50 mm | Substrate thickness; total thickness includes coating layers |
| Width Range | 600 mm – 1,500 mm | Slit coil or full-width coil available per customer requirement |
| Corrosion Resistance | Salt Spray Test ≥ 500–2000 hours | Per ASTM B117 / ISO 9227; PVDF and HDP coatings achieve superior performance |
| Surface Finish | Smooth, Embossed, Matte, High Gloss | RAL / custom color matching available; gloss level 10–85 GU per ASTM D523 |
| Application | Roofing, wall cladding, home appliances, automotive parts, HVAC ducts | Suitable for industrial, commercial, and residential construction environments |
| Certification | ISO 9001, SGS, BV, CE, RoHS | Third-party inspection and material test reports (MTR) available upon request |
| Packaging | Eye-to-sky or eye-to-wall coil; waterproof paper + steel strip strapping | Export seaworthy packaging; coil weight typically 3–8 MT per coil |
| MOQ | 25 MT per order | Mixed grades and colors accepted; sample coils available for qualification testing |
Corrosion Resistant Color Coating - Mill Direct Supplier
Corrosion resistant color coating steel serves as one of the most versatile and protective materials in modern construction, manufacturing, and industrial applications. Engineered to withstand harsh environmental conditions while maintaining an aesthetically appealing finish, this product combines structural integrity with long-term surface protection. Industries ranging from roofing and wall cladding to home appliances and automotive components rely on color-coated steel panels for their outstanding anti-corrosion properties and design flexibility. The coating system typically consists of a zinc or zinc-aluminum alloy base layer followed by a primer coat and a high-performance topcoat, offering a total dry film thickness ranging from 20 µm to 35 µm depending on the application requirement. As a mill direct supplier, we deliver premium grade corrosion resistant color coating products with consistent quality, reduced lead times, and cost-effective pricing that eliminates unnecessary intermediary markups. Our production lines comply with international standards including ASTM A755, EN 10169, and JIS G3312, ensuring every coil or sheet meets your exact project specifications.
What is Corrosion Resistant Color Coating?
Corrosion resistant color coating, commonly referred to as pre-painted steel or PPGI (Pre-Painted Galvanized Iron), is a cold-rolled or hot-dipped galvanized steel substrate coated with one or more layers of organic paint through a continuous coil coating process. The result is a finished steel product that combines mechanical strength with superior weather resistance, chemical resistance, and decorative color options — all applied before fabrication, ensuring uniform coverage and consistent performance across the entire surface.

Corrosion Resistant Color Coating Manufacturing Process
The manufacturing process begins with surface pre-treatment of the galvanized steel substrate, including alkaline cleaning, rinsing, and chemical conversion coating to enhance paint adhesion. A primer layer is then applied and cured in a high-temperature oven at approximately 230°C–260°C. The finish topcoat — available in polyester (PE), high-durability polyester (HDP), silicon modified polyester (SMP), or polyvinylidene fluoride (PVDF) — is subsequently applied and thermally cured, producing a tightly bonded, uniform coating with a pencil hardness of HB to 2H.
Corrosion Resistant Color Coating Technical Specifications
Our corrosion resistant color coating products are manufactured to meet the following standard technical parameters:
- Base Material: Hot-dipped galvanized steel (GI) or Galvalume (GL) substrate
- Steel Thickness: 0.14 mm – 1.50 mm
- Coil Width: 600 mm – 1,500 mm
- Zinc Coating Mass: Z60 – Z275 g/m² (per ASTM A653)
- Total Dry Film Thickness: 20 µm – 35 µm (primer + topcoat)
- Tensile Strength: 270 MPa – 550 MPa depending on steel grade
- Yield Strength: 240 MPa – 500 MPa
- Salt Spray Resistance: ≥500 hours (per ASTM B117)
- Gloss Level: Matte (10–20 GU), Semi-gloss (30–60 GU), High-gloss (60–80 GU)
- Color Options: RAL standard palette and custom colors available
- Applicable Standards: ASTM A755, EN 10169, JIS G3312, GB/T 12754
These specifications make our corrosion resistant color coating ideal for roofing panels, wall cladding, garage doors, HVAC ducting, household appliances, and transportation equipment where long-term durability and visual appeal are both critical requirements.

Get a Competitive Quote for Corrosion Resistant Color Coating
Partner with our mill direct team to access premium grade corrosion resistant color coating at highly competitive, factory-direct rates. Whether you require standard stock sizes or custom-cut coils, our technical sales team is ready to match your project specifications with the most suitable product grade and coating system — all within a rapid response window.
- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!
