PVC drop stitch fabric is a high-strength, air-tight material used primarily in inflatable structures (boats, paddleboards, air floors, and inflatable shelters). Unlike standard PVC tarps, it consists of thousands of polyester threads (drop stitches) sandwiched between two PVC layers, creating a rigid, lightweight, and ultra-durable material when inflated.

Key Features of Reinforced Transparent Tarpaulin

Construction

Two PVC-coated polyester outer layers (500D–1000D)

Thousands of interwoven polyester "drop stitches" (like a 3D mesh)

Heat-welded or high-frequency (RF) sealed edges for airtightness

Advantages

Extremely rigid when inflated (near-hard structure)
Lightweight yet puncture-resistant (better than single-layer PVC)
Air- and water-tight (no leaks, ideal for marine use)
Customizable thickness (0.8mm–2.0mm common)
UV & abrasion-resistant (long outdoor lifespan)

PVC Drop Stitch Fabric – Technical Data Sheet

1. Material Composition

Component	Specification
Outer Layers	PVC-coated polyester (500D–2000D)
Drop Stitch Threads	High-tenacity polyester (0.3–0.8mm thickness per thread)
Adhesive Bonding	High-frequency welded (RF) or heat-laminated
Total Thickness	0.8mm–2.5mm (inflated)
Weight	800–2000 g/m² (varies by thread density)

2. Mechanical Properties

Property	Value	Test Standard
Tensile Strength (Warp/Weft)	≥ 4000/4000 N/5cm	ISO 1421
Tear Resistance	≥ 100 N (Graves method)	ISO 4674
Burst Strength	≥ 500 kPa	ASTM D3786
Peel Strength (Layer Adhesion)	≥ 50 N/cm	DIN 53357
Elongation at Break	≤ 20%	ISO 1421

3. Performance Characteristics

Feature	Specification
Air Retention	≤ 1% pressure loss/24h (at 6–10 PSI)
Waterproofness	100% (no leakage at 50 kPa hydrostatic pressure)
UV Resistance	500–1500+ hours (QUV accelerated aging)
Operating Temperature	-30°C to +70°C
Flammability	DIN 4102-B1 / NFPA 701 (fire-retardant options available)
Abrasion Resistance	≥ 10,000 cycles (Martindale test)

4. Standard Sizes & Customization

Parameter	Options
Width	1.5m–3.2m (standard rolls)
Length	Custom (typically 25m–100m rolls)
Colors	Clear, White, Gray, Camouflage, Custom Pantone
Surface Finish	Glossy, Matte, Anti-slip textured
Pressure Rating	6–15 PSI (higher psi = more rigid)

5. Applications & Recommended Configurations

Application	Recommended Thickness	Pressure (PSI)	Reinforcement
SUPs (Paddleboards)	1.2mm–1.5mm	10–15 PSI	1000D + 0.6mm threads
Inflatable Boats (RIBs)	1.5mm–2.0mm	8–12 PSI	1500D + 0.8mm threads
Air Floors (Military/Tents)	2.0mm–2.5mm	5–8 PSI	2000D + 1.0mm threads
Inflatable Docks	1.8mm–2.2mm	6–10 PSI	Double-scrim reinforced