Keywords:‌
Color steel coil, prepainted galvanized coil, PPGI/PPGL roofing material, China-made steel coil, building envelope material, Blubro color coated coil, architectural cladding panel, customized steel coil

‌Meta Description:‌
Blubro.com offers premium color steel coils with high-quality galvanized base (GI/GL) and durable PVDF/HDP coatings. Available in 100+ RAL colors, thickness 0.12-1.2mm, width 600-1500mm. Ideal for roofing, wall panels with 20+ years lifespan. OEM service available.

‌Material Specifications:‌

‌Base Material Options:‌

1. ‌Galvanized Steel (GI)‌

   • Coating: Z60-Z275 (g/m²)
   • Standard: JIS G3302 / ASTM A653

2. ‌Galvalume Steel (GL)‌

   • 55% Al-Zn coating
   • Standard: AS 1397 / ASTM A792

‌Coating Systems:‌

• ‌PVDF Coating‌ (70% PVDF resin)

  • Thickness: 20-25μm
  • Weather resistance: 20+ years

• ‌HDP Coating‌ (High Durability Polyester)

  • Thickness: 15-20μm
  • Cost-effective alternative

‌Manufacturing Process (Blubro Advantages):‌

1. ‌Surface Preparation‌

   • Alkaline cleaning
   • Chemical passivation

2. ‌Coating Application‌

   • 2-coat 1-bake system
   • Reverse roller coating technology

3. ‌Curing Process‌

   • PMT control (±2℃)
   • UV resistance treatment

‌Product Specifications:‌

• ‌Thickness‌: 0.12mm-1.2mm
• ‌Width‌: 600mm-1500mm (trimmed to ±1mm)
• ‌Coil Weight‌: 3-10MT (max. OD 1500mm)
• ‌Tensile Strength‌: 280-550MPa
• ‌Hardness‌: HRB 40-80

‌Key Applications:‌
✓ Industrial roofing systems
✓ Sandwich panel production
✓ Architectural facades
✓ Garage doors manufacturing
✓ Appliance panels

‌Blubro.com Competitive Advantages:‌

1. ‌Production Capacity‌

   • 50,000 tons/month output
   • 72-hour production lead time

2. ‌Quality Assurance‌

   • SGS certified materials
   • Batch test reports provided
   • ISO 9001:2015 certified

3. ‌Customization Service‌

   • 200+ RAL color options
   • Special metallic/wood grain finishes
   • Private label packaging

4. ‌Technical Support‌

   • Free technical consultation
   • CAD drawings available
   • On-site application guidance

‌Additional Services:‌

• JIS/EN/ASTM standard compliance
• Third-party inspection acceptance
• Ocean-going packaging (waterproof + edge protection)
• Just-in-time delivery system