Air is the invisible engine of every modern environment. Whether it’s circulating fresh air deep underground or maintaining pressure balance in a high-rise HVAC system, efficient airflow depends on the reliability of its ducting material.
At the heart of that reliability lies PVC fabric — strong, flexible, flame-retardant, and engineered to last.

DEJIA’s PVC coated and laminated fabrics are designed specifically for ventilation ducting applications, where performance, safety, and durability must work hand in hand.

The Core of Efficient Airflow

Ventilation ducting is more than just a passage for air — it’s a performance system that must remain airtight, stable, and safe under varying pressure and temperature.
PVC fabrics provide the ideal combination of mechanical strength, airtightness, and cost-efficiency, making them a trusted choice across industries.

Two Technologies, One Purpose

DEJIA manufactures both PVC coated fabrics and PVC laminated fabrics, each crafted through distinct processes but serving a common goal: reliable, high-performance ventilation.

Feature	PVC Coated Fabric	PVC Laminated Fabric
Production Process	Liquid PVC is directly coated onto polyester base using knife or spread coating, creating deep fiber bonding.	PVC film is laminated to textile with heat or adhesive for a smooth composite surface.
Bonding Strength	Strong chemical and mechanical adhesion	Moderate mechanical bonding
Surface & Feel	Textured, robust, and slightly stiffer	Smooth, softer, and more flexible
Durability	Excellent — suited for heavy-duty and long-term use	Good — ideal for medium-duty or temporary ducts
Flame Retardancy	Outstanding; ideal for safety-critical ventilation	Customizable with FR additives
Applications	Mining, tunneling, industrial exhaust, high-pressure ducts	Mining (light/temporary ducts), HVAC ducts, portable ventilation
Cost	Slightly higher	More economical

 

Engineered for Performance

Every DEJIA PVC fabric starts with a high-tenacity polyester base, precision-treated with advanced PVC formulations. The result is a material that maintains airtight integrity and mechanical strength even in harsh, continuous-use environments.

Property	Description
Tensile Strength	Reinforced polyester yarns ensure exceptional load-bearing capacity.
Tear Resistance	Balanced coating structure prevents crack propagation under pressure.
Flame Retardancy	FR grades available per ISO, DIN, or ASTM standards.
Anti-Static	Optional surface treatment prevents static accumulation in confined airflow.
Waterproof / Airtight	PVC layer provides complete air and moisture seal.
Chemical Resistance	Resistant to oils, acids, and industrial pollutants.
Temperature Range	Operational from -30°C to +70°C.
Weldability	Compatible with high-frequency and hot-air welding methods.

 

Designed for Real Environments

Ventilation systems face dust, pressure, and continuous movement. DEJIA PVC fabrics are built for the real world — where materials must work as hard as the people who use them.

Mining and Tunneling:
Coated PVC fabrics deliver strength, flame resistance, and static control for safety underground.

Construction and Temporary Ducting:
Lightweight laminated fabrics offer flexibility and quick installation for temporary air management.

HVAC and Building Ventilation:
Airtight, smooth fabrics maintain consistent airflow and energy efficiency in climate control systems.

Mining vs HVAC — Direct Comparison

Aspect	Mining	HVAC
Material Type	Coated & Laminated	Laminated
Primary Focus	Strength, abrasion, flame, anti-static	Lightweight, smooth airflow, short-width ducts
Weight	300–1100 g/m²	300–500 g/m²
Flexibility	Moderate	High
Seam Strength	Critical	Moderate
Fire / Anti-Static	Mandatory	Optional / building code
Environment	Dust, humidity, mechanical stress	Indoor controlled environment
Base Cloth	1000D polyester	1000D polyester
Width	Mining up to 3.2 m; Laminated portable	10–20 cm
Cost Sensitivity	Medium	High

Industrial Exhaust and Fume Extraction:
PVC fabrics resist heat, oil, and chemical vapors, ensuring stable performance under tough industrial conditions.

Application	Recommended Fabric Type	Key Characteristics
Underground Mining	PVC Coated (FR + Anti-static)	High pressure, safety critical
Construction Ventilation	PVC Laminated	Lightweight, easy handling
HVAC Systems	Coated or Laminated	Airtight, durable
Industrial Exhaust	PVC Coated	Heat and chemical resistance
Tunnel Ventilation	Heavy-Duty Coated	Flame retardant, long life
Agricultural Airflow	Laminated	Cost-effective and flexible

 

Smarter Than Strong

PVC fabrics do more than resist wear; they make installation, maintenance, and operation simpler.
Compared with metal ducts, they are lighter, faster to install, and easier to transport. Unlike rubber or PU, they maintain flexibility over time and remain consistent under repeated bending or folding.

This blend of strength and intelligence defines DEJIA’s material philosophy — making complex ventilation systems more efficient and reliable.

Precision Manufacturing

Each DEJIA fabric is crafted with control and consistency.
Using advanced coating and lamination lines, we maintain uniform PVC thickness, superior adhesion, and surface smoothness.
Optional surface finishes include gloss, matte, or embossed textures, depending on application needs.

Every roll is inspected for visual uniformity, bonding strength, and air permeability — ensuring seamless performance during fabrication and installation.

Quality You Can Depend On

Quality is not tested at the end — it’s built into every step.
From yarn selection to coating formulation, DEJIA applies rigorous controls to guarantee stability and repeatability.
Our laboratory testing includes tensile, tear, peel, flame, and air pressure performance verification.

This precision ensures that every meter of fabric you receive performs exactly as expected — every time.

Flexible Options and Tailored Solutions

Every ventilation project is unique. That’s why DEJIA provides a range of customization options to match your technical and operational requirements.

Parameter	Range / Options
Weight	300–1100 g/m²
Base Cloth	1000D polyester
Coating / Lamination	Knife-coated / Laminated
Surface	Gloss / Matte / Embossed / Anti-static
Flame Rating	FR mining grade / Building code
Width	Mining up to 5 m; HVAC 10–20 cm
Color	Fully customizable
Anti-Static Property	Optional treatment for mining and industrial use
UV Resistance	Optional

 

Durability in Every Fiber

PVC coated and laminated fabrics are built to last.
Their surfaces are easy to clean, minimizing dust buildup and preserving airflow efficiency.
High-frequency welded seams prevent leakage, while reinforced edges extend service life even under tension.

With proper handling and installation, DEJIA ventilation fabrics offer years of dependable service with minimal maintenance.

Shaping the Future of Air Movement

The future of ventilation demands smarter, lighter, and safer materials.
DEJIA continues to innovate through new polymer formulations, halogen-free flame retardant systems, and improved mechanical structures that enhance strength without adding weight.

We believe in moving air better — not just today, but for the decades ahead.

Where Performance Meets Air

From the depths of tunnels to the heights of skyscrapers, DEJIA PVC fabrics keep air flowing where it matters most.
They embody a simple truth: durability, safety, and performance are not optional — they’re essential.

Choose PVC fabrics that move air the way it’s meant to move: cleanly, safely, and efficiently.
Choose DEJIA.