TPU Breathable Film
Where Protection Meets Comfort
Advanced waterproof and moisture-permeable TPU membrane engineered to block liquid water
while allowing water vapor to pass through freely — keeping wearers dry, comfortable, and protected.
What Is TPU Breathable Film?
TPU Breathable Film (Thermoplastic Polyurethane Waterproof & Moisture-Permeable Membrane) is a
high-performance functional film that achieves an extraordinary balance: it is 100% waterproof
against liquid water, yet highly breathable — allowing water vapor (perspiration) to
escape freely through the membrane.
This “breathable yet waterproof” property is achieved through advanced polymer engineering. The TPU
membrane contains no through-pores — instead, water vapor molecules are transported through the
hydrophilic molecular chains of the polyurethane itself, a mechanism known as monolithic
(non-porous) breathability. This eliminates the risk of pore clogging, delamination, or
bacterial penetration, making it superior to traditional microporous membranes.
No pores · No clogging · Lifetime breathability
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Monolithic (Non-Porous) Structure
Hydrophilic TPU chains transport moisture vapor — no micropores means no clogging, no bacterial passage, and consistent breathability over the product lifetime.
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True Waterproof Barrier
Withstands hydrostatic pressure exceeding 20,000 mmH₂O — complete liquid water blockage even under heavy rain or pressurized conditions.
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Eco-Friendly & Safe
100% PVC-free, halogen-free, and solvent-free. Compliant with REACH, RoHS, and OEKO-TEX Standard 100. Recyclable thermoplastic.
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Fully Customizable
Thickness from 12 µm to 100 µm, width up to 2,200 mm, Shore hardness 60A–95A, and tailored MVTR/hydrostatic head to meet your exact application requirements.
How Breathable TPU Membrane Works
Unlike microporous films that rely on tiny holes (which can clog or tear), our TPU breathable film
uses a monolithic hydrophilic transport mechanism — moisture moves through the polymer itself.
💧 Liquid Water Blocked
Water droplets are too large to pass through the dense polymer network. The film maintains a complete barrier against rain, splash, and pressurized water — hydrostatic head exceeds 20,000 mmH₂O.
🌬️ Vapor Passes Through
Water vapor molecules (perspiration) are small enough to be absorbed by the hydrophilic groups in the TPU molecular chain, then desorbed on the other side — transporting moisture outward continuously.
⚡ Continuous Comfort
The moisture gradient between the body (warm, humid) and the exterior (cool, dry) drives vapor transport automatically. No pumps, no energy input — just thermodynamic diffusion at the molecular level.
Product Specifications
Standard grades covering the most common breathable film applications. All parameters can be fully
customized — contact our R&D team for special formulations.
thickness, and width available on request. Typical MOQ: 300 kg per grade.
| Parameter | XG-BF-1 (Light Breathable) | XG-BF-2 (Standard Grade) | XG-BF-3 (High-Breathable) |
|---|---|---|---|
| 📏 Physical Properties | |||
| Base Resin | Polyether TPU (hydrophilic) | Polyether TPU (hydrophilic) | Polyether TPU (hydrophilic) |
| Thickness | 12 – 25 µm | 20 – 50 µm | 30 – 100 µm |
| Weight (film only) | 14 – 28 g/m² | 22 – 55 g/m² | 33 – 110 g/m² |
| Available Width | 200 mm – 2,200 mm (custom slit widths available) | ||
| Roll Length | 500 m / 1,000 m / 2,000 m / custom | ||
| Thickness Tolerance | ±5% or ±1 µm (whichever is greater) | ||
| 💧 Waterproof & Breathable Performance | |||
| Hydrostatic Head | > 10,000 mmH₂O | > 15,000 mmH₂O | > 20,000 mmH₂O |
| MVTR (JIS L 1099 A-1) | 3,000 – 6,000 g/m²/24h | 6,000 – 10,000 g/m²/24h | 10,000 – 15,000 g/m²/24h |
| MVTR (ASTM E96 BW) | 2,500 – 5,000 g/m²/24h | 5,000 – 8,000 g/m²/24h | 8,000 – 12,000 g/m²/24h |
| Water Vapor Permeance | Adjustable per application — higher MVTR available with custom formulation | ||
| 💪 Mechanical Properties | |||
| Tensile Strength (MD/CD) | ≥ 25 / ≥ 20 MPa | ≥ 30 / ≥ 25 MPa | ≥ 35 / ≥ 28 MPa |
| Elongation at Break | > 500% | > 450% | > 400% |
| Tear Resistance | ≥ 60 kN/m | ||
| Shore Hardness | 60A – 95A (customizable) | ||
| 🌡️ Thermal & Environmental | |||
| Working Temperature | -40°C to +120°C | ||
| Cold Flexibility | No cracking at -40°C | ||
| Hydrolysis Resistance | Excellent (polyether base) | ||
| UV Resistance | Anti-yellowing grade available | ||
| 📋 Compliance & Packaging | |||
| Color | Translucent / White / Custom pigment | ||
| Surface Finish | Smooth / Embossed / Matte (selectable) | ||
| Certifications | ISO 9001, OEKO-TEX 100, REACH, RoHS, SGS | ||
| Packaging | PE core + carton box / pallet / vacuum pack / private label | ||
| Lead Time | 7–15 business days (stock items: 3 days; rush available) | ||
Where Breathable TPU Film Is Used
From high-performance outdoor gear to medical protective apparel and building envelopes —
our breathable membrane delivers waterproof protection without sacrificing comfort.
Outdoor Apparel & Sportswear
Laminated to outer fabrics for waterproof jackets, rain pants, ski wear, and cycling gear. Keeps athletes dry from rain outside while letting sweat vapor escape — no clammy feeling during high-output activity.
Tents & Outdoor Gear
Breathable tent floors, sleeping bag liners, and bivouac sacks. Prevents condensation buildup inside the tent while blocking ground moisture — essential for comfort in multi-day expeditions.
Medical Protective Apparel
Surgical gowns, isolation coveralls, and drapes. The breathable membrane reduces heat stress for medical staff during long procedures while maintaining an impervious barrier against bloodborne pathogens.
Footwear & Gloves
Waterproof breathable liners for hiking boots, work boots, and ski gloves. Feet and hands stay dry from external water while internal moisture escapes — preventing blisters and odor buildup.
Building & Construction
Roofing underlayment and wall weather-resistant barriers (WRB). Allows building assemblies to breathe and dry out while blocking wind-driven rain — critical for preventing mold and structural damage.
Hygiene & Diapers
Ultra-thin breathable backsheet film for disposable diapers, sanitary products, and incontinence pads. Soft, quiet, and moisture-permeable — keeping skin dry and reducing diaper rash.
Automotive Interiors
Seat covers and interior trim laminates. Provides a moisture barrier that prevents spills from reaching foam padding while allowing the seat to breathe — improving comfort in all climates.
Protective Packaging
Breathable packaging for produce, pharmaceuticals, and moisture-sensitive goods. Blocks liquid water ingress while allowing gases and vapor to equilibrate — extending shelf life and preventing condensation damage.
Key Advantages of Our Waterproof Breathable Membrane
Every roll is produced under strict quality control to deliver consistent, high-level performance
that your products and your customers can rely on.
Superior Waterproof Performance
Complete liquid water barrier with hydrostatic head resistance exceeding 20,000 mmH₂O — far beyond what outdoor gear and medical apparel demand.
- Hydrostatic head > 20,000 mmH₂O
- Zero pinholes — hermetic fluid barrier
- Stable barrier under sustained pressure
- Validated by AATCC 127 & EN 20811
High Moisture Vapor Transmission
MVTR up to 15,000 g/m²/24h — keeps wearers dry and comfortable even during intense physical activity or extended wear in humid conditions.
- MVTR 3,000 – 15,000 g/m²/24h (tunable)
- Tested per JIS L 1099 & ASTM E96
- No breathability degradation over time
- Monolithic transport — no pore clogging
Bacterial & Viral Barrier
The non-porous monolithic structure blocks bacteria, viruses, and other microorganisms — ideal for medical and hygiene applications where pathogen resistance is critical.
- Bacterial filtration efficiency > 99%
- Viral penetration resistance (ASTM F1671)
- No micropores = no microbial passage
- Safe for prolonged skin contact
Exceptional Durability & Flexibility
High tensile strength combined with extreme elongation means the film resists tearing, puncturing, and repeated flexing without compromising the waterproof barrier.
- Tensile strength ≥ 30 MPa
- Elongation at break > 450%
- Flexible from -40°C to +120°C
- No brittleness in cold conditions
Eco-Friendly & Recyclable
100% PVC-free, halogen-free, and solvent-free production. Meets global environmental standards and is fully recyclable as a thermoplastic — a sustainable choice for green manufacturing.
- REACH & RoHS compliant
- OEKO-TEX Standard 100 certified
- No phthalates or heavy metals
- Recyclable — supports circular economy
Excellent Lamination Compatibility
Engineered for reliable bonding with textiles, nonwovens, and films via thermal, adhesive, or solvent lamination. Consistent peel strength across the full roll width.
- Compatible with polyester, nylon, PP, PE
- Thermal lamination at 120°C–180°C
- Peel strength > 3.5 N/cm
- No delamination after washing cycles
Full Customization at Every Dimension
From polymer formulation to finished roll specifications — we engineer every parameter to your
exact application requirements. Not sure what you need? Our R&D team will help you find the right grade.
Thickness
12 µm to 100 µm
- Ultra-thin for hygiene products
- Heavy gauge for building WRB
- ±5% precision tolerance
Width & Length
Up to 2,200 mm wide
- Custom slit widths available
- Roll length 500–2,000 m
- Sheet cut to size available
MVTR Tuning
3,000 – 15,000 g/m²/24h
- Low-breathable for high-barrier apps
- High-breathable for sportswear
- Tested per JIS L 1099 / ASTM E96
Hydrostatic Head
5,000 – 30,000+ mmH₂O
- Light rain to heavy storm grade
- Medical fluid barrier grade
- Customizable per application
Hardness (Shore A)
60A – 95A range
- Soft & supple for apparel
- Semi-rigid for structural use
- Mixed hardness profiles available
Surface & Color
Translucent / White / Custom
- Smooth, matte, or embossed
- Custom pigment matching
- Anti-slip texture available
Resin & Formulation
Polyether / Polyester / Blends
- Hydrophilic TPU for breathability
- Anti-UV / anti-yellowing additives
- Bio-based TPU option available
Functional Add-Ons
Multi-functional coatings
- Flame retardant (UL94 V-0)
- Anti-static treatment
- Anti-bacterial / anti-fungal
Packaging & Label
Flexible options
- PE core / carton / pallet / vacuum
- Private label & custom branding
- Barcoded & traceable per roll
Certification
Full documentation
- SGS / OEKO-TEX 100
- REACH / RoHS / FDA grade
- Custom test reports on request
Shanghai Functech Tech Co., Ltd.
Founded in 2009 and headquartered in Shanghai, China, Shanghai Functech Tech Co., Ltd. (上海寰亘新材料科技有限公司) is a high-tech enterprise dedicated to the R&D, manufacturing, and export of premium TPU films and functional membranes.
With over 8,500 m² of modern production facilities, state-of-the-art extrusion and casting lines, and a dedicated R&D laboratory, we have developed a comprehensive breathable film portfolio covering monolithic TPU membrane, microporous membrane, and composite breathable fabrics. Our breathable films are exported to 60+ countries, serving clients in textiles, outdoor gear, medical, hygiene, construction, and automotive sectors.
🌱 Mission:Dedicated to the R&D and production of eco-friendly products, contributing to a low-carbon lifestyle for all humanity.
👁 Vision:To become a global supplier of polyurethane materials and product solutions, and to advance the cause of global environmental protection.
Our Journey in Polyurethane Film
Founded in Shanghai
Established TPU film production base with initial extrusion lines
ISO 9001 Certification
Achieved international quality management system certification
Global Export Expansion
Expanded to 60+ countries; obtained OEKO-TEX & SGS certifications
R&D Lab Upgrade
Invested in advanced testing equipment and new breathable film formulations
Shenzhen & LA Branches
Opened overseas sales offices to enhance global service capability
Factory-Backed Quality Assurance
Our integrated production model ensures consistent quality and on-time delivery — from raw material to your door.
Quality Control System
Multi-stage quality inspections at every production step, backed by a certified lab.
- Incoming raw material testing (density, MFI, purity)
- In-process film thickness & MVTR monitoring
- Hydrostatic head pressure testing (AATCC 127)
- Mechanical property testing (tensile, tear, elongation)
- Final shipment QC inspection & COA report
- Third-party SGS / BV inspection available
Production Capacity
Modern production lines with high throughput ensure we meet any order volume on time.
- Monthly capacity: 500+ tons of TPU film
- Multiple extrusion & casting lines
- Clean room zones for medical-grade film
- Automated slitting & rewinding systems
- Dedicated stock program for fast-moving specs
- Rush order capability for urgent requirements
Delivery Guarantee
98% on-time delivery rate backed by strict scheduling and logistics partnerships.
- Sample orders: 3–5 business days
- Standard orders: 7–15 business days
- Express production available on request
- Partnered with DHL, FedEx, UPS, sea freight
- Real-time shipment tracking provided
- Insurance & export documentation included
Our Order-to-Delivery Process
Inquiry & Consultation
Share your specs & requirements
Formulation Design
R&D team confirms formula & parameters
Sample Production
Trial run, lab testing & sample delivery
Bulk Production
Mass production with in-line QC
Final Inspection
100% roll-level QC & COA issuance
Shipment & Tracking
On-time dispatch with logistics support
🛡️ OEKO-TEX Standard 100
🛡️ SGS Certified
🛡️ REACH Compliant
🛡️ RoHS Compliant
🛡️ FDA Grade Available
🛡️ AATCC 127 Tested
🛡️ JIS L 1099 Tested
Ready to Upgrade Your Waterproof Breathable Solution?
Our technical specialists are standing by. Get free samples, detailed datasheets, and a custom
quotation within 24 hours. Let’s engineer the perfect breathable film for your application.