TPU Coated 70D Nylon Fabric for Inflatable Medical Boots

Our TPU Coated 70D Nylon Fabric is a technical textile optimized for medical air chamber applications. The base fabric is a finely woven 70-denier nylon, chosen for its outstanding strength-to-weight ratio, low elasticity, and resistance to punctures. This substrate is then precision-coated on one side with a uniform layer of medical-grade Thermoplastic Polyurethane (TPU), creating a completely airtight barrier. The result is an ultra-lightweight yet incredibly tough laminate that forms the core structural component of inflatable bladders. Its low-stretch property is critical for maintaining precise volume and pressure control during inflation, ensuring consistent therapeutic compression. This fabric is the industry-preferred choice for constructing the primary air cell in pneumatic walking boots, fracture braces, and other rehabilitation devices where reliability, precise pressure delivery, and long-term durability are non-negotiable.

Key Features & Benefits

• High Strength-to-Weight Ratio:​ The 70D nylon base provides exceptional tensile and tear strength while adding minimal weight, contributing to a lighter, more comfortable medical device.
• Superior Airtightness & Reliability:​ The continuous medical-grade TPU coating ensures a perfect seal for outstanding air retention, guaranteeing reliable and consistent performance of the compression system.
• Low Stretch & Excellent Dimensional Stability:​ Minimal elongation under pressure prevents bladder over-expansion and “ballooning,” allowing for precise pressure calibration and control.
• Excellent Puncture & Abrasion Resistance:​ Highly resistant to damage from sharp edges, seams, or repeated use within the boot shell, enhancing product longevity and safety.
• Ultra-Lightweight:​ Reduces the overall weight of the rehabilitation device, significantly improving patient comfort and wearability during extended use.
• Strong, Consistent Weldability:​ The TPU coating facilitates clean and robust high-frequency (HF) or thermal welding, producing durable, leak-proof seams that are essential for air bladder integrity.
• Flexible & Conformable:​ Remains pliable to comfortably conform to anatomical contours without restricting movement or causing discomfort.