Factory-direct TPU technical textile
Waterproof TPU Coated Fabric for Welded, Airtight and Flexible Products
DERFLEX manufactures waterproof TPU coated fabric rolls for dry bags, waterproof backpacks, inflatable chambers, marine safety products, medical air systems, flexible tanks and industrial protective applications. The material is engineered around waterproof sealing, stable welding, soft folding and repeatable roll quality for B2B production.
What Makes TPU Coated Fabric Waterproof?
Waterproof performance comes from the complete material structure, not only from a surface label. A TPU layer is bonded to nylon or polyester fabric to form a continuous waterproof barrier, while the base textile provides strength, tear resistance and dimensional stability.
For finished goods such as dry bags, inflatables and flexible tanks, the final waterproof or airtight result also depends on seam design, welding temperature, pressure, dwell time, product shape and production inspection.
Built From the End Product Backward
DERFLEX helps buyers select waterproof TPU coated fabric by product use instead of only comparing thickness or price. A roll for a soft waterproof backpack is different from a roll for a high-pressure inflatable chamber or a liquid bladder. Each project may require a different base denier, TPU chemistry, coating side, welding method and surface finish.
- TPU coated nylon for flexible, tear-resistant and foldable products.
- TPU coated polyester for dimensional stability, covers and industrial sheets.
- Polyether TPU direction for water contact, humidity and hydrolysis-risk applications.
- Polyester TPU direction for abrasion, oil contact direction and mechanical strength.
- Single-side or double-side TPU coating according to sealing and cleanability needs.
Waterproof TPU Fabric Designed for Manufacturing Reliability
For factories, brand owners and product developers, a good waterproof TPU fabric must perform during cutting, welding, folding, packing, filling and repeated use. The following points are typically reviewed before bulk production.
Waterproof & Airtight Sealing
Selected TPU surfaces support welded or heat-sealed seams for dry bags, air chambers, bladders and other products that need moisture or air control.
Welding Compatibility
TPU coated fabric can be developed for hot-air welding, HF welding, heat sealing or ultrasonic welding. Sample trials are recommended before mass production.
Abrasion & Folding Resistance
The TPU layer provides a flexible surface that can resist common rubbing, packing movement and repeated folding in outdoor and industrial use.
Soft Hand Feel Options
Compared with many heavy coated textiles, TPU can support softer handling, clean appearance and premium surface options for outdoor consumer products.
Low-Temperature Flexibility
With proper TPU grade selection, the material can remain flexible in cooler environments, helping outdoor, rescue and marine products maintain usability.
OEM Visual Matching
Color, matte or glossy finish, embossed texture, roll length, packaging and functional direction can be discussed for brand and converter requirements.
Waterproof TPU Coated Fabric Specification Guide
The table below gives a practical selection framework. Final values should be confirmed by application, sample testing, welding method and service environment.
| Product Name | Waterproof TPU coated fabric / TPU coated nylon fabric / TPU coated polyester fabric / weldable TPU fabric roll |
|---|---|
| Base Fabric | Nylon or polyester; common directions include 70D, 210D, 420D, 600D, 840D, 1000D, 1680D and custom woven constructions. |
| TPU Chemistry | Polyether TPU for water contact, humidity, hydrolysis resistance direction and outdoor inflatable products; polyester TPU for abrasion resistance, oil-related direction and mechanical strength. |
| Coating Side | Single-side TPU or double-side TPU. Double-side coating is often used for airtight, inflatable, bladder and liquid-holding products. |
| Weight Range | Approx. 90–1500 gsm depending on fabric denier, coating thickness and end-use requirements. |
| Thickness Direction | Approx. 0.05–1.2 mm or customized. Thicker constructions may improve structure and welding margin but also increase weight and stiffness. |
| Roll Width | Common 1.4 m–3.2 m, custom width available for projects requiring reduced seams or higher cutting efficiency. |
| Surface Finish | Matte, glossy, embossed, textile texture, anti-slip direction or brand-specific appearance options. |
| Processing | HF welding, hot-air welding, heat sealing, ultrasonic welding and sewing plus seam sealing depending on construction. |
| Typical Buyers | Dry bag factories, inflatable product manufacturers, medical air product producers, marine equipment suppliers, flexible tank fabricators, outdoor brands and industrial converters. |
Where Waterproof TPU Coated Fabric Is Used
TPU coated fabric is selected when waterproofing, seam sealing, flexibility and material appearance all matter in the finished product.
Dry Bags & Waterproof Backpacks
Lightweight TPU coated nylon or polyester for roll-top dry bags, waterproof packs, bikepacking bags, soft coolers and outdoor cases.
Inflatables & Air Chambers
Double-side TPU coated fabric for inflatable boats, packrafts, cushions, lifting bags and sealed air products requiring reliable welding.
Flexible Tanks & Bladders
Heavy-duty TPU coated structures for water bladders, liquid storage direction, industrial containers and foldable tank programs.
Medical Air Systems
TPU fabric for pressure cushions, medical air mattresses, transfer aids and cleanable air-holding structures where surface and sealing matter.
Film Lamination & Technical Layers
Clear TPU film and TPU coated textile structures for lamination, waterproof layers, protective surfaces and customized technical composites.
Industrial Covers & Protective Bags
Waterproof TPU coated polyester for machine covers, protective bags, sleeves, liners and cleanable industrial flexible products.
From Material Selection to OEM Roll Supply
DERFLEX supports waterproof TPU coated fabric projects with a practical development workflow, helping buyers reduce trial-and-error before bulk production.
Application Review
Confirm product type, waterproofing requirement, pressure level, folding behavior, welding method and target market.
Structure Matching
Select nylon or polyester base fabric, denier, TPU chemistry, coating side, thickness, hardness and surface finish.
Sample Trial
Check welding window, peel strength, hand feel, air retention, color and surface appearance before commercial order.
Bulk Production
Produce rolls with controlled width, weight, coating surface, packaging and export documents for B2B supply.
Repeat Supply
Support continued orders with specification records, batch communication and OEM project continuity.
Example: Waterproof Roll-Top Bag Material Program
A waterproof bag factory may start with a simple request such as “TPU fabric for dry bags.” In practice, the material needs to match bag size, folding feel, color standard, welding equipment, roll-top closure design and packing method.
For this type of program, DERFLEX can discuss a lightweight or medium-weight TPU coated nylon or polyester structure, check sample welding performance, review surface finish and help prepare a repeatable roll specification for production.
From Sample to Repeat Order
- Hand feel and folding behavior after repeated roll-top use.
- Welding window and seam appearance on the buyer’s equipment.
- Color consistency, surface texture and brand visual requirements.
- Roll width, cutting yield, packaging and label format.
- Performance tests requested by the buyer or target market.
TPU Coated Fabric vs PVC Coated Fabric vs PU Coated Fabric
Different coated fabrics have different strengths. DERFLEX can help buyers choose based on application conditions, production method and commercial positioning.
| Material | Main Strength | Typical Products | Recommended When |
|---|---|---|---|
| Waterproof TPU Coated Fabric | Flexible, weldable, waterproof, airtight direction, abrasion-resistant and suitable for clean surface designs. | Dry bags, inflatables, medical air systems, bladders, flexible tanks, waterproof outdoor gear. | You need a welded waterproof product with soft folding, air retention, light-to-heavy structure options and OEM appearance. |
| PVC Coated Fabric | Heavy-duty waterproofing, strong weather resistance direction, mature processing and cost-efficient large roll supply. | Truck tarps, tents, covers, awnings, industrial curtains, architectural membranes. | The project needs large-area industrial durability, heavy cover performance and broad welding compatibility. |
| PU Coated Fabric | Lightweight, soft hand feel and common waterproof direction for apparel, bags and general textile products. | Garments, light bags, textile coatings, basic outdoor goods. | The product does not require strong airtight welding and the priority is soft textile handling or lightweight construction. |
How to Specify Waterproof TPU Fabric for Quotation
Clear project information helps the supplier recommend a workable material direction and sample plan. Before requesting a quote, prepare the following details as much as possible.
- End product: dry bag, inflatable, tank, medical air product, cover or other application.
- Required base fabric, total weight, thickness, width and roll length.
- Welding method: HF welding, hot-air welding, heat sealing or ultrasonic welding.
- Waterproofing, airtightness, hydrolysis, abrasion or liquid contact expectations.
- Color, surface finish, embossed texture, packaging, label and OEM needs.
- Estimated quantity, sampling deadline, target market and testing requirements.
Do Not Select by Thickness Alone
A thicker TPU fabric is not automatically the right choice. If the base fabric is too stiff, the product may be difficult to fold. If the TPU layer is too thin, welding margin may be limited. If the chemistry is mismatched, water contact or oil contact performance may not fit the real application.
For safer product development, DERFLEX recommends sample welding, seam testing and application-specific review before confirming bulk material.
Internal Links for Waterproof TPU Fabric Buyers
Explore related material pages according to your finished product, processing method and waterproof performance target.
Frequently Asked Questions About Waterproof TPU Coated Fabric
Answers for buyers comparing TPU coated nylon, TPU coated polyester, welding methods and waterproof product development.
Is TPU coated fabric fully waterproof?
TPU coated fabric can be made waterproof because the TPU layer forms a continuous barrier on the textile base. For finished products, final waterproof performance also depends on seam welding, sealing design, product shape and production inspection.
Can waterproof TPU coated fabric be welded?
Yes. Many TPU coated fabrics can support HF welding, hot-air welding, heat sealing or ultrasonic welding. The exact welding window depends on TPU grade, coating thickness, base fabric, equipment settings and seam design.
Should I choose TPU coated nylon or TPU coated polyester?
TPU coated nylon is often selected for soft folding, tear strength and inflatable outdoor products. TPU coated polyester is often selected for dimensional stability, covers, industrial sheets and cost-efficient roll programs.
What is the difference between polyether TPU and polyester TPU?
Polyether TPU is commonly selected for water contact, humidity and hydrolysis-resistance direction. Polyester TPU is commonly selected when abrasion resistance, oil-related direction and mechanical strength are important.
Can DERFLEX customize waterproof TPU fabric?
Yes. DERFLEX can discuss custom denier, coating side, thickness, weight, width, color, hardness, surface finish, embossing, roll length, packaging and OEM project requirements.
What information is needed for a quotation?
Please provide end use, required weight or thickness, base fabric, coating side, width, color, welding method, performance tests, roll length, estimated quantity and any market-specific compliance expectations.
Request Custom Waterproof TPU Coated Fabric from DERFLEX
Send your application, base fabric direction, target weight, width, color, welding method and testing requirements. DERFLEX will help recommend a practical TPU coated fabric direction for sampling and bulk production.
Useful details to include
- Finished product and working environment
- Waterproof, airtight or liquid-contact requirement
- Base fabric, thickness, GSM and width target
- Welding method and production equipment
- Color, finish, packaging and estimated quantity