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Color Coated Steel Sheets Service Life Guide

彩涂卷
December 23, 2025
Category Connection: PPGI Steel Coil
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Tags:
#PPGI Coil Sheet #PPGI Coated Coil #Prepainted Steel Coil
Brief: Thinking about an upgrade? This short demo helps you evaluate the fit. In this video, we walk you through the key factors that determine the service life of color coated steel sheets. You'll see how different base plate materials, coating processes, and service environments impact longevity, from ordinary civil grade to high-end weather-resistant options. We also demonstrate a practical selection method to help you choose the right product for your specific roofing, wall cladding, or decoration needs.
Related Product Features:
  • Available in three grades: Ordinary Civil Grade for temporary buildings, Industrial Standard Grade for workshops, and High-end Weather-resistant Grade for coastal or corrosive areas.
  • Base plate options include cold-rolled steel, hot-dip galvanized steel, and galvalume steel, each offering different levels of corrosion resistance.
  • Coating types include PE for cost-effectiveness, SMP for better weather resistance, and PVDF for superior UV and corrosion resistance.
  • Service life ranges from 5-10 years for civil grade, 10-20 years for industrial grade, and 20-30 years for high-end weather-resistant grade.
  • Designed for various applications including roofing, wall cladding, and decoration, with specific profile and thickness recommendations.
  • Selection guidance based on service scenario, base plate quality, coating process, appearance details, and plate profile matching.
  • Ideal for B2B clients in construction and manufacturing seeking durable, colorfast, and corrosion-resistant building materials.
  • Certification standards include ISO 9001 and SGS salt spray test reports to ensure product quality and performance.
FAQs:
  • What factors determine the service life of color coated steel sheets?
    The service life primarily depends on three core factors: the base plate material (e.g., cold-rolled, galvanized, or galvalume), the coating process (e.g., PE, SMP, or PVDF), and the service environment (e.g., coastal, industrial, or dry inland areas).
  • How do I choose the right color coated steel sheet for a coastal area?
    For coastal or highly corrosive environments, select the high-end weather-resistant grade with a galvalume base plate (zinc-aluminum content ≥55%) and PVDF coating. Ensure the coating thickness is ≥25μm and fluorine content is ≥70% for optimal salt spray resistance.
  • What is the difference between PE, SMP, and PVDF coatings?
    PE (Polyester) offers rich colors and low cost, suitable for dry inland areas. SMP (Silicone-modified Polyester) provides better chalking and weather resistance for industrial use. PVDF (Polyvinylidene Fluoride) delivers excellent corrosion, UV, and scrub resistance, ideal for high-end or corrosive environments.
  • What thickness and profile are recommended for roofing applications?
    For roofing, choose plates with a wave height ≥30mm to enhance load-bearing and drainage, and a base plate thickness ≥0.4mm for durability and performance.
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