Reinforced PVC Drop Stitch for SUP

Technical Parameters

Material Selection Guide

The main selection criteria for SUP drop stitch are the fabric's GSM, the desired thickness, and the construction method (single vs. double layer).

• Performance Requirement: For maximum pressure (above 20 PSI), opt for woven base fabrics over knitted or standard drop stitch, combined with a high GSM coating.

• Environmental Factors: Request a UV-resistant top coating for materials destined for tropical or intense sunlight regions.

• Budget/Weight Balance: Single-layer fusion technology offers a lighter final product, while double-layer provides maximum durability and rigidity at a higher weight.

Manufacturing and Tailoring

The reinforcement process involves specialized coating techniques to penetrate the dense woven substrate.

• Adhesion Optimization: We fine-tune the coating viscosity and temperature to ensure complete encapsulation of the drop stitch filaments and base fabric for maximum airtightness.

• Custom Colors: The external PVC layer can be custom-colored for aesthetic branding, with pigments formulated for long-term lightfastness.

• Testing and Certification: All drop stitch batches undergo burst pressure testing and thread pull-out tests to verify structural performance before shipment.

Deployment FAQ

• Q: How does the thread density affect the final board performance?

  A: Higher thread density increases the load-bearing capacity and rigidity of the board under pressure, reducing flex and improving stability for the user.

• Q: Is the coating compatible with cold weather storage?

  A: Yes, the PVC formulation includes cold-crack additives, maintaining material integrity and flexibility even when stored in freezing temperatures (down to −15∘C).