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| Property | Parameter | Description |
|---|---|---|
| Product Name | Color Coating Service | Professional color coating applied to steel coils, sheets, and strips for enhanced aesthetics and corrosion protection |
| Base Material Grade | SPCC, SGCC, DX51D, S280GD, S350GD | Cold-rolled steel, hot-dip galvanized steel; equivalent to JIS G3302, EN 10346, ASTM A653 |
| Standard Compliance | ASTM A755, EN 10169, JIS G3312, GB/T 12754 | International standards for prepainted/color-coated steel flat products |
| Chemical Composition (Base) | C ≤0.12%, Mn ≤0.60%, P ≤0.045%, S ≤0.045%, Si ≤0.50% | Typical composition of substrate; actual values vary by base material grade selected |
| Coating Type | PVDF, PE (Polyester), SMP, HDP, Epoxy | PVDF offers superior UV resistance; PE is cost-effective; SMP/HDP for enhanced durability |
| Coating Thickness | Top coat: 15–25 µm; Primer: 5–7 µm; Back coat: 5–15 µm | Measured per ASTM D1400 / EN ISO 2808; total dry film thickness customizable |
| Tensile Strength | 270–550 MPa | Depends on substrate grade; e.g., S280GD: ≥360 MPa per EN 10346 |
| Yield Strength | 240–420 MPa | S280GD: ≥280 MPa; S350GD: ≥350 MPa per EN 10346 |
| Elongation | ≥18% (A80mm) | Tested per EN ISO 6892-1 / ASTM E8; ensures formability after coating |
| Steel Thickness Range | 0.15–1.50 mm | Base metal thickness; coated product thickness slightly higher due to paint layers |
| Width Range | 600–1,500 mm | Slit-to-width available; tolerance ±2 mm per customer specification |
| Coil Inner Diameter | 508 mm / 610 mm | Standard eye-to-sky or eye-to-wall packaging; coil weight up to 10 MT |
| Surface Finish | Smooth, Matte, Embossed, Wrinkle, Metallic | Gloss level 10–90 GU (60° geometry) per ASTM D523; RAL/Pantone color matching available |
| Application | Roofing, wall cladding, home appliances, automotive parts, HVAC ducts, furniture panels | Widely used in construction, white goods, and industrial sectors |
| Certification | ISO 9001, ISO 14001, RoHS, SGS, CE | Lead-free and chromate-free options available; compliant with EU environmental directives |
| Packaging | Steel-strapped coils with waterproof paper and wooden pallet; export seaworthy packaging | Anti-rust oil applied on cut edges; moisture-proof inner wrapping standard |
| MOQ | 25 MT per color/specification | Mixed container orders accepted; sample rolls available upon request |
Initial Color Variation Issue — Resolved Satisfactorily
First order of 60 metric tons, SMP coated, 0.45 mm, RAL 5015 sky blue, 1,050 mm width for agricultural building panels. On arrival, two coils showed slight color variance from the approved sample — visible under direct sunlight comparison. Raised the issue immediately; the QC team responded within 4 hours, acknowledged the batch inconsistency, and arranged replacement coils shipped within 8 days at no additional cost. Replacement coils matched the RAL standard exactly. The resolution process was professional. Willing to reorder given how the complaint was handled.
First order of 60 metric tons, SMP coated, 0.45 mm, RAL 5015 sky blue, 1,050 mm width for agricultural building panels. On arrival, two coils showed slight color variance from the approved sample — visible under direct sunlight comparison. Raised the issue immediately; the QC team responded within 4 hours, acknowledged the batch inconsistency, and arranged replacement coils shipped within 8 days at no additional cost. Replacement coils matched the RAL standard exactly. The resolution process was professional. Willing to reorder given how the complaint was handled.
