1.How to choose color-coated corrugated sheets for factories/warehouses in inland areas?
Core requirements: Moderate wind and snow load resistance, good drainage, and high cost-effectiveness.
Specification Selection Details:
Substrate Thickness: 0.4mm - 0.6mm (0.4-0.5mm for spans ≤ 10m, 0.5-0.6mm for spans 10-15m).
Zinc Layer Weight: Z80 - Z120g/㎡ (for dry inland areas, no need for ultra-high corrosion protection).
Coating Type: PE polyester coating (general weather resistance, low cost; if the factory is subject to light dust, SMP silicone-modified polyester can be selected for better stain resistance).
Corrugated Sheet Type: Prefer high-corrugated and wide-coverage types, such as the YX35-125-750 (35mm corrugated height for good drainage) and the YX30-175-1050 (1050mm effective width for quick installation).
Pothole Avoidance: Avoid low-corrugated roof types (e.g., corrugated height ≤ 20mm), as this can easily lead to water accumulation and coating detachment.
2.How to choose corrugated boards for buildings (roofs/exterior walls) in coastal areas?
Core requirements: Strong corrosion resistance (resistance to sea breezes and salt), typhoon resistance (high loads).
Specification selection details:
Substrate thickness: 0.5mm - 0.8mm (0.6-0.8mm in typhoon-prone areas for enhanced wind deformation resistance).
Zinc layer weight: Z180 - Z220g/㎡ (The thicker the zinc layer, the stronger the resistance to salt corrosion, preventing short-term rust).
Coating type: PVDF fluorocarbon coating (3-5 times more weather-resistant than PE, resistant to UV and salt erosion, and durable in outdoor exposure).
Corrugated type: High-corrugated type (such as YX35-125-750) for roofing, medium-low-corrugated type (such as YX20-143-840) for exterior walls, ensuring both smoothness and wind resistance.
Special requirements: Optional "back coating thickness" (≥10μm) can be requested to prevent wall moisture from causing rust on the substrate.
3.How to choose corrugated board for multi-story buildings/residential buildings?
Core requirements: Aesthetic appearance (smooth finish/long-lasting color), lightweight (no added wall load), and aging resistance.
Specification selection details:
Substrate thickness: 0.3mm - 0.4mm (walls do not need to bear weight, so thinness is sufficient to reduce installation difficulty).
Zinc coating weight: Z100 - Z120g/㎡ (for indoor and outdoor applications, requiring moderate corrosion resistance).
Coating type: SMP silicone-modified polyester coating (rich colors, better weather resistance than PE, and a smooth surface suitable for decoration). PVDF is an option for high-end applications.
Corrugated type: Low-corrugated (e.g., YX15-180-900, YX15-170-850), with a corrugation height of 20mm or less, for a smoother wall surface and better visual effect.
Color matching: Refer to the RAL color chart (e.g., light gray RAL7035, off-white RAL1015) to match the architectural style.
4.How to choose corrugated board for temporary buildings/mobile houses?
Core requirements: Low cost, lightweight, easy installation, and short-term use (1-5 years).
Specification selection details:
Substrate thickness: 0.25mm - 0.35mm (sufficient for short-term strength, to control costs)
Zinc coating weight: Z40 - Z80g/㎡ (for temporary use, no need for high corrosion protection, to reduce budget)
Coating type: Standard PE coating (basic weather resistance, best value for money)
Corrugated sheet type: Wide-coverage, low-wave type (such as YX15-180-900, YX20-143-840), which effectively covers a wide area, reduces installation time, and lowers labor costs.
Custom length: Customized to the span of the prefabricated house (typically 3-6 meters), eliminating cutting waste.
5.How to choose corrugated board for food/pharmaceutical factories?
Core requirements: Cleanliness, easy cleaning, odor-free, and corrosion-resistant (some workshops experience humidity/mild chemical environments).
Specification selection details:
Substrate thickness: 0.3mm - 0.4mm (for indoor use without load, primarily lightweight and thin).
Zinc coating weight: Z100 - Z120g/㎡ (for protection against corrosion from workshop moisture).
Coating type: Food-grade PE coating (volatile-free, smooth surface, washable). PVDF is an option for those with mild chemical corrosion.
Corrugated type: Low-wavy, smooth type (such as YX15-180-900). The surface has no noticeable grooves, preventing dust accumulation and facilitating daily cleaning.
Color options: White or light colors (such as RAL9003 Pure White) to enhance workshop brightness and meet cleanliness standards.