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PVC/PVDF Coated Fabric

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PVC/PVDF (Polyvinyl Chloride/Polyvinylidene Fluoride) coated fabric is one of the most commonly used materials in the construction of tensile structures. It combines the strength and flexibility of fabric with the durability and weather resistance of PVC and PVDF coatings, making it ideal for outdoor applications.

Composition and Structure:

Base Fabric: PVC/PVDF-coated fabrics are typically made from polyester or glass fiber woven into a strong base fabric. This base fabric provides the strength and flexibility required to bear tension and withstand external forces such as wind or snow load.

Coating: The fabric is coated with PVC (Polyvinyl Chloride) or PVDF (Polyvinylidene Fluoride). These coatings provide weather resistance, UV protection, and waterproofing, making the fabric highly durable and ideal for exterior applications in tensile structures like shade sails, canopies, and roof membranes.

Composition and Structure:

1. Durability:

o The PVC coating offers superior durability, making the fabric resistant to the elements such as rain, snow, and wind. It can withstand high levels of UV radiation, preventing degradation over time. o PVDF coating enhances this durability with improved chemical resistance and stability in extreme weather conditions. It is less prone to yellowing from UV exposure and provides long-term color retention.

2. Weather Resistance:

o Waterproof: PVC/PVDF-coated fabric is water-resistant and can withstand heavy rainfall without absorbing moisture, making it ideal for creating weatherproof structures. o UV Protection: The PVC/PVDF coating provides a high level of UV resistance, preventing the fabric from fading and ensuring the tensile structure remains aesthetically pleasing for years. o Fire Retardancy: Many PVC/PVDF-coated fabrics are designed to meet fire safety standards, offering an additional layer of protection in public spaces.

3. Aesthetic Appeal:

o The fabric is available in a range of colors and finishes, which can be customized to suit the design and architectural requirements of the tensile structure. The material’s smooth surface gives a sleek, modern look to the structures. o Translucency: Some PVC/PVDF fabrics are semi-transparent, allowing natural light to pass through, enhancing the illumination of the space beneath without exposing it to the elements.

4. Lightweight and Flexible:

o PVC/PVDF-coated fabrics are lightweight, making them easier to handle, install, and maintain. The flexibility of the material allows it to be stretched into various shapes, providing architectural freedom for complex tensile structures. o Elasticity: The material can be stretched under tension, enabling the creation of dynamic and aesthetic designs that follow the natural flow of the structure.

5. Low Maintenance:

o The non-porous surface of the fabric resists dirt accumulation, making it easy to clean and maintain. The coating also prevents mold or mildew growth, further enhancing the longevity and ease of care.

6. Sustainability:

o PVC/PVDF-coated fabrics are environmentally friendly in comparison to other materials. The durability of the fabric means fewer replacements are required over time, and its long lifespan reduces material waste.

Applications:

PVC/PVDF-coated fabric is widely used in various tensile structure applications such as:

  • Shade Sails: Providing effective UV protection in outdoor spaces.
  • Tensile Membrane Roofs: Used in stadiums, airports, and pavilions for both aesthetic and functional roofing.
  • Canopies: Offering coverage and protection for public spaces and commercial properties.
  • Parking Sheds: Protecting vehicles from the elements in large-scale parking areas.
  • Event Tents: For temporary structures at exhibitions, festivals, and corporate events.

🔧 Basic Technical Specifications of Tensile Fabric

Specification Details
Base Material High-tenacity Polyester (PES) / Fiberglass
Coating PVC (Polyvinyl Chloride) with PVDF topcoat
Fabric Weight 700 – 1500 gsm (grams per square meter)
Tensile Strength 2500 – 5500 N/5cm (warp and weft)
Tear Strength 200 – 500 N (warp and weft)
Light Transmission 5% – 20% (depending on type and coating)
Fire Retardancy B1, M2, Class 1 (as per DIN, NFPA, ASTM standards)
UV Resistance Excellent (treated with UV stabilizers in coating)
Temperature Range -30°C to +70°C
Topcoat Finish PVDF lacquer (for dirt resistance and longevity)
Color Availability White (standard), with custom colors on request
Expected Lifespan 15 – 25 years (depending on material quality & environment)