Corrugated Steel Roof Roofing Sheet Ppgi

Corrugated sheet is a new material with light weight (hollow structure), non-toxic, no pollution, waterproof, shockproof,anti-aging, corrosion resistance and rich color. Corrugated sheet is mainly used in electronics, packaging, machinery, light industry, postal, food, medicine, pesticides, household appliances, advertising, decoration, cultural articles, optical and magnetic technology, biological engineering medicine and health and other industries.

Superior Double-Layer Protection: Galvanized Base + Pre-Painted Coating

• Inner galvanized layer: The base material is hot-dip galvanized steel. The zinc coating acts as a "sacrificial anode," forming a dense oxide film to isolate the steel from moisture, oxygen, and mild corrosive substances (such as rainwater, humidity, and salt spray). This extends the core service life of the sheets to 20–30 years—longer than that of plain GI (Galvanized Iron) sheets.

• Outer pre-painted layer: A high-performance, weather-resistant paint (commonly polyester, PVDF, or acrylic) is applied in factories through electrostatic spraying and high-temperature curing. This layer provides additional benefits:

• Strong UV resistance: Prevents paint fading, chalking, or peeling under prolonged sun exposure, a critical property for outdoor roofing.

• Enhanced corrosion barrier: Further shields the galvanized base from harsh environmental factors like industrial fumes and coastal salt-laden air.

Aesthetic Versatility and Customization

• Diverse color options: Available in standard colors (e.g., classic red, dark gray, navy blue, forest green) as well as custom hues to match various architectural styles (e.g., modern minimalism, rural cottages, industrial lofts).

• Multiple surface finishes: Options include matte, semi-gloss, high-gloss, or textured (e.g., wood-grain, stone-grain) effects. Textured finishes not only mimic natural materials but also hide minor scratches or dust, reducing maintenance needs.

• Uniform appearance: Factory-controlled painting processes ensure consistent color and coating thickness across all sheets, avoiding the unevenness often seen with on-site painting.

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