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Galvanized Color Coated Coil Production Explained

彩涂卷
December 22, 2025
Category Connection: PPGI Steel Coil
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Tags:
#PPGI Coil Sheet #PPGI Coated Coil #Prepainted Steel Coil
Brief: See the journey from feature description to real application in this concise overview. This video explains the complete production process of export-grade galvanized color coated coils, from cold-rolled substrate preparation through hot-dip galvanizing anti-corrosion treatment to final coating and curing stages. You'll witness the automated production line operations that ensure consistent quality and learn how customized specifications are achieved for international B2B markets.
Related Product Features:
  • Hot-dip galvanizing process creates zinc-iron alloy layer for superior corrosion resistance in outdoor applications.
  • Continuous automated production line ensures stable product quality from uncoiling to final packaging.
  • Customizable width and color options with support for RAL/Pantone standard color matching.
  • Multi-layer coating system with primer and topcoat application for enhanced durability and aesthetic appeal.
  • Chromium-free passivation treatment complies with international RoHS and REACH environmental standards.
  • Export-standard packaging with moisture-proof paper and wooden pallets for secure international shipping.
  • Online detection system monitors coating thickness, color consistency, and surface defects throughout production.
  • Versatile substrate options including cold-rolled low-carbon steel coils in thickness range 0.12-2.0 mm.
FAQs:
  • What is the difference between hot-dip galvanizing and electro-galvanizing processes?
    Hot-dip galvanizing involves immersing steel in molten zinc at 450°C, forming a thick zinc-iron alloy layer (30-275 g/㎡) ideal for outdoor use. Electro-galvanizing uses electrolysis to deposit a thinner zinc layer (10-50 g/㎡) that provides smoother surfaces suitable for interior applications like home appliances.
  • How is color consistency maintained across production batches?
    Color consistency is ensured through precise roll coating application, standardized RAL/Pantone color matching, and online detection systems that continuously monitor color difference and coating thickness throughout the automated production process.
  • What packaging standards are used for international export?
    We use export-standard packaging with inner moisture-proof paper wrapping, outer plastic film protection, steel strip bundling, and wooden pallets to prevent damage, moisture, and deformation during sea transportation and handling.
  • What surface pre-treatment is applied before coating?
    The galvanized substrate undergoes chromium-free passivation treatment that forms a protective film, enhancing coating adhesion and corrosion resistance while complying with international environmental regulations like RoHS and REACH.
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