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PVC Drop Stitch Fabrics
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PVC Drop Stitch Fabrics & Double Wall Fabric

PVC Drop Stitch Fabrics are specially designed drop stitched PVC materials which also known as Double Wall Fabric(DWF). There are two layers of base fabric connected to each other by the spacer threads in consistent height for the superior air holding. When it is inflated to high pressure, Double Wall Fabric construction allows the inflatables to maintain if its shape. And it is possible to be welded into desired shape and pressurized with air into a hard, strong surface.

Although the DWF technology is in its infancy phase, it captured with promising future, becoming increasingly popular with applications in Stand-up Paddle board, Sport mattress, Wall of SPA, Inflate tent,Roof of float tank, Lifesaving mattress and more for its advantages such as more cost effective and less space occupied when deflating.

There are varied tests based on different Phthalates to be consistent with increasing concerns over the the application and environmental consciousness. The tests could meet 3P, 6P, 7P, 15P and 16P standard.

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With a registered capital of 139 million CNY, MSD is a high-tech enterprise integrating R&D, production and sales of high-end PVC products and decorative film materials, being founded in 2002 and located in Maqiao Warp knitting Park, Haining city, Zhejiang Province.

MSD as a professional Double Wall Fabric Suppliers and PVC Drop Stitch Fabrics & Double Wall Fabric Factory, we provide customers with custom PVC Drop Stitch Fabrics & Double Wall Fabric at a great price. Our products are under strict quality control throughout the manufacturing process.

MSD is specializing in the production of environmental friendly PETG Film, TPU Compound Film, Inflatable Boat Fabric, PVC Super Clear Film, PVC Wallcovering ect. The company owns the core technology which makes it to be the leading enterprise in PVC calendering coating industry.

At present, the company has 1100 employees, including 120 technicians, and a factory area of 180,000 square meters. In 2021, the sales has reached 2.6 billion CNY.

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Durable PVC Drop Stitch Material Explained: Structure, Thickness, and Manufacturing of Double Wall Fabric

What is durable PVC drop stitch material?

Durable PVC drop stitch material, also known as Double Wall Fabric, refers to a type of material widely used in the construction of inflatable watercraft, such as stand-up paddleboards (SUPs), inflatable kayaks, and rafts. This material consists of a double layer of PVC with a network of high-tension threads sandwiched between the layers. The “drop stitches” form a Double Wall Fabric structure that provides rigidity and stability when the inflatable is fully pressurized, while remaining lightweight and easy to transport when deflated.

The embedded threads allow the watercraft to support the weight of a person and withstand forces from waves or currents. Thanks to its Double Wall Fabric construction, this material is designed to be durable and long-lasting, making it ideal for both recreational use and extreme water sports.

How thick is PVC drop stitch fabric?

The thickness of a PVC drop stitch material, or Double Wall Fabric, can vary depending on the manufacturer and specific product design. Thickness affects the overall rigidity and stability of the inflatable watercraft:

  • Thicker areas provide greater stability and structural integrity.
  • Flexible areas, such as the sides, can enhance maneuverability while the center remains rigid.

It is important to note that thickness alone does not determine performance. Factors like watercraft design, valve type, and the overall quality of materials and construction play a critical role in ensuring safety and durability.

How is PVC drop stitch fabric made?

The manufacturing of PVC drop stitch material, including Double Wall Fabric, involves several precise steps:

  • Laminating: Two layers of PVC are laminated together to form a solid base material for the fabric.
  • Embroidering: High-tension threads are embedded between the two PVC layers using specialized embroidery machinery, creating the “drop stitch” network that defines the Double Wall Fabric structure.
  • Inflating: The material is inflated to high pressure so the threads stretch and pull tight, producing a rigid and stable surface.
  • Trimming: Edges are trimmed and reinforced, sometimes with additional PVC layers, to improve durability and achieve a clean finish.

The result is a highly rigid and durable Double Wall Fabric that resists abrasion, punctures, and UV damage, making it ideal for constructing inflatable watercraft capable of supporting weight and withstanding demanding water conditions.

FAQs for PVC Drop Stitch Fabric / Double Wall Fabric

1. What is PVC Drop Stitch Fabric, and How Does It Relate to Double Wall Fabric?

  • PVC Drop Stitch Fabric, also called Double Wall Fabric, has two PVC layers connected by high-tension threads, creating a rigid, lightweight structure for inflatables.

2. What Are the Main Applications of PVC Drop Stitch Fabric and Double Wall Fabric?

Used in SUPs, kayaks, rafts, lifesaving mattresses, inflatable mats, tents, spa walls, and other high-pressure inflatables.

3. Can PVC Drop Stitch Fabric / Double Wall Fabric Be Thermoformed Into Complex Shapes?

Yes. The flexible edges allow thermoforming while the drop stitch center maintains rigidity.

4. Is Double Wall Fabric Lightweight for Easy Transport?

Yes. Deflated DWF is lightweight, easy to store and transport.

5. What Types of High-tension Threads Are Used in PVC Drop Stitch Fabric?

High-tension polyester or nylon threads provide strength and stability.

6. Can PVC Drop Stitch Fabric / Double Wall Fabric Be Welded or Bonded?

Yes. Hot-air welding, high-frequency welding, or adhesives can join seams without losing airtightness.

7. How Resistant is Double Wall Fabric to Punctures and Abrasion?

Highly resistant due to reinforced PVC layers and tightly spaced drop stitches.

8. Can PVC Drop Stitch Fabric Withstand UV Exposure?

Yes, UV-stabilized PVC layers prevent degradation outdoors.

9. Is Double Wall Fabric Recyclable or Reusable?

Partially recyclable and highly reusable; its durability reduces waste.

10. Can Double Wall Fabric Be Customized in Color, Texture, or Finish?

Yes. Supports multiple colors, textures, finishes, and printing for branding or decoration.

11. Can Double Wall Fabric Be Used for Lifesaving Mattresses or Inflatable Rafts?

Yes. Maintains shape under pressure and is ideal for rescue and safety inflatables.

12. Can PVC Drop Stitch Fabric / Double Wall Fabric Be Printed on for Branding or Decoration?

Yes. Compatible with UV, screen, or digital printing without compromising structure.