Get in Touch with Teng Yang Company
Polyether TPU Film Manufacturer
Polyether TPU Film Built for Humid, Cold, and Skin-Contact Environments
Standard tpu film gets stiff in the cold, and will break down in sustained humidity – polyether-grade film won’t. Tengyang formulates polyether TPU film for hydrolysis resistance, low-temperature flexibility, and a soft, skin-safe hand, custom-built to your thickness, width, hardness, and color specs.
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Polyether
Soft-segment chemistry
Shore A 80–95
Typical hardness range1
0.1–0.3mm+
Custom thickness range1
Custom
Width, melting point & color
Hydrolysis-resistant
Humid/wet-environment stability
Skin-safe soft hand
Medical & wearable contact
High Humidity and Low Temperature Break Down Standard TPU Film, Polyether Grade Solves Both
Films built with the wrong polyurethane chemistry will fail in two common and costly ways: ordinary TPU loses grams of water per square meter per day when asked to perform a vapor barrier function under humid conditions — the precise kind of failure one buyer described publicly after struggling to source a custom TPU-plus-vapor-barrier composite film that wouldn’t leak moisture over time; and standard films get stiff and crack with repeated flexing once temperatures drop, instead of absorbing it. Both failures can cost you rework, rejected material, and warranty claims — not a rounding error, a re-run of the whole order.
The Polyether Chemistry Advantage
The key to solving both problems lies in the chemistry of the film’s soft segments – in our case, polyols linked through ether bonds, rather than ester linkages, all within the broader polymer family that is sometimes still referenced in older literature as urethane film. Industry-leading polyurethane resin technical literature from sources like BASF and Huntsman indicates this polyether chemistry offers excellent hydrolytic stability and low-temperature flexibility, and provides superior resistance to fungal and microbial growth2,3 — it’s why we default any brief requiring use in humid or cold environments to polyether before we’re ever asked about thickness and color. It’s precisely why we consider polyether grade the first-choice material once a film must handle any kind of prolonged moisture, cold temperatures, or skin contact, for everything from medical devices, to wearable sensors and breathable textile laminates, to the kind of skin-contact applications routinely discussed around ISO 10993 biocompatibility endpoints.7,8
Custom Manufacturing & Qualification
Tengyang manufactures your custom polyether tpu film on our production line, precisely to your required thickness, width, melt point, and color – and backed by our extensive experience selecting materials and optimising bonding for garment, medical, and industrial lamination applications. We then submit sample material to you for qualification and bonding testing before you commit to your production order, something a fixed-catalog supplier can’t offer. Tengyang begins with a detailed analysis of your product’s likely failure mode, then we select the correct chemistry, and finally, we build the film around your desired color chart, the honest version of “custom” is that the chemistry decision happens before the color chart does.
“When a customer tells us their film will sit in a humid environment or against skin for extended periods, the chemistry decision is made before we even talk about thickness, polyester-grade film is the wrong starting point for that brief, full stop.”
Polyether TPU Film, Custom Specification Range & Selection
This isn’t a one-size-fits-all scenario. While published material data for polyurethane typically specifies Shore A hardness ranges of 80-95 and common thicknesses between 0.1mm and 0.3mm (0.004-0.012″)1,4, Tengyang offers a broader range and can accommodate custom film dimensions including exact thickness, width, melt point, color, and surface finishes – precisely tailored to your application, not adapted from a catalogue SKU.
Hardness
Industry: Shore A 80–95
Tengyang: Formulated to target hardness on request
Thickness
Industry: ~0.1mm–0.3mm (stock)
Tengyang: Custom thickness per application
Width
Industry: To ~1,270mm (50″)
Tengyang: Custom width per production line req.
Color / Finish
Industry: Clear, tinted, matte or gloss
Tengyang: Custom color matching, advanced matte/gloss finishes
Melting Point
Industry: Standard Grade-dependent
Tengyang: Custom melt-point formulation specifically tuned on request
Polyether TPU film wound on a production roll, showing a translucent, uniformly cast surface
Polyether TPU film in roll form, uniform casting is what keeps thickness tolerance consistent.
The quality of a film is truly decided not on a sample-sized lab test, but by consistency across an entire roll, and across production runs. Anti-hydrolysis agents aren’t always dispersed uniformly through the resin during extrusion, leading to weaknesses in the film that would be missed by a spot check.5 Tengyang controls dispersion at the extrusion stage, instead of applying it after the fact via a masterbatch, and we perform roll-to-roll thickness checks and appearance scans of the entire roll (not just the leading edge).
Application Profile & Specifications
| Application Profile | Suggested Thickness Band | Suggested Hardness |
|---|---|---|
| Medical device / wound-care film | 0.05mm–0.15mm | Shore A 80–88 (softer hand) |
| Wearable sensor / e-textile lamination | 0.03mm–0.10mm | Shore A 80–90 |
| Textile lamination (barrier/adhesive layer) | 0.05mm–0.20mm | Shore A 85–92 |
| Inflatable / pneumatic bladder | 0.15mm–0.30mm+ | Shore A 88–95 |
The bands indicate standard practices within the polyether tpu film family, though your specific needs regarding substrate, bonding technique, and end-use application may differ; always confirm with our team before finalizing a film specification.
Not sure which spec fits your application?
Ask a Material Engineer →Polyether vs. Polyester TPU Film, Which Fits Your Application
While both types of film are valid choices for their intended purpose, many engineers choose them based on brand name rather than performance requirements. Polyester TPU isn’t “worse” than polyether; it’s engineered to excel in dry, oil/chemical-exposed, high-temperature environments, areas where polyether would underperform.
Choosing the wrong film can result in premature hydrolysis (polyester in humid environments) or cracking due to cold flex (if neither film has been specifically designed for cold performance). The reason why Polyester and polyether continue to be the two main tpu film technologies is because they fulfill two distinct needs.
Polyester TPU
Polyether TPU (Tengyang)
| Property | Polyester TPU | Polyether TPU (Tengyang) |
|---|---|---|
| Hydrolysis / humid & wet-environment stability | Degrades faster under sustained moisture | Hydrolytically stable — default choice for humid or submerged use2,3,4 |
| Low-temperature flexibility | Stiffens sooner as temperature drops | Retains flexibility at lower temperatures2,3,6 |
| Sliding abrasion resistance (scraping/rubbing) | Better fit — dock seals, scraper blades, CIPP liners | Moderate |
| Impingement abrasion resistance (particle impact) | Moderate | Better fit — sandblast curtains, bumpers, inflatable rafts6 |
| Tensile strength & cut/tear resistance | Higher6 | Moderate |
| Chemical, oil & solvent resistance | Better fit — tanks, CIPP liners | Moderate |
| Sustained high-temperature aging | More resistant to prolonged heat exposure6 | Less heat buildup under repeated dynamic flexing6 |
| Microbial / fungal resistance | Moderate | Better2,3,4 |
| Rebound / resilience | Moderate | Higher — fits high-speed rollers, skate wheels6 |
| Relative raw-material cost | Lower | Higher — polyether polyol is a more complex, costlier feedstock6 |
Longer Service Life in Humid & Cold-Cycling Environments
Field deployments of polyether-grade TPU film typically show extended service life in humid or low-temperature environments compared to standard polyester-grade alternatives — a property consistently documented across major polyurethane resin technical literature rather than a Tengyang-specific test claim.
Basis: BASF Elastollan & Huntsman TPU technical literature2,3 — qualitative durability trend, not a precise measured percentage; ask us for the underlying source documents. Moisture-barrier-focused polyether formulation work is also documented in CN119638950A, a recent published patent on modified TPU waterproof, moisture-permeable film.
Information derived from BASF Elastollan technical data sheets, Huntsman polyurethane elastomer information, and various tpu film chemistry publications2,3,6 (see references below). Refer to our polyester vs. polyether TPU Film guide for a complete selection walk-through.
Applications: Medical Devices, Wearables, Textile Lamination & Protective Barriers
Its profile (high hydrolytic stability, good low-temperature flexibility, microbial resistance and soft, non-plastic feel) points toward the polyether grade being suitable for certain specialized applications, whereas the polyester grade is more suited for industrial parts and packaging that require wear resistance. Tengyang designs formulations that maximize whichever of these four properties is most important for your application, as inflatable bladders and wound-care films rarely require the same combination of attributes, even when part of the same polyether category.
Medical Devices & Wound-Care Films
When considering the category of skin-contact materials, there is often an evaluation against the ISO 10993 standard for biocompatibility, and either the contact duration or the body-contact category determines which test panel applies7,8 — so that’s a step worth checking with your regulatory team when selecting the appropriate material. Because polyether TPU resists both microbial growth and fungal formation and is very soft to the touch, it is often used for wound dressings, protective coatings for medical devices, and components of surgical drapes, which is exactly why Tengyang steers medical-grade briefs toward polyether over polyester grade whenever extended skin contact matters more than raw strength.
Wearable Sensors & E-Textile Lamination
Published research on TPU lamination for e-textiles has always focused on wearability and durability under repeated flex cycles9 — the exact same low-temperature, dynamic-flex profile polyether grade is formulated for. Several major tpu film producers position their polyether grades as ultrasonically or thermally sealable for wearable sensor housings and patient-monitoring form factors10, something worth considering when your assembly line is set up for thermal bonding rather than adhesive lamination.
Textile Lamination, Adhesive & Barrier Layers
Within technical textile applications, polyether tpu film plays either the role of a moisture and wind barrier, or as the bonding layer in the construction, where flexibility and hydrolytic stability matter more than raw tensile strength, the territory where polyester grade wins instead. The same coating and lamination logic applies to automotive interior trim, where soft-touch surface feel and resistance to cabin humidity cycling matter more than tensile strength rating.
Working on a medical, wearable, or textile-lamination project?
Get a Quote Based on Your Application →Regulatory Compliance
Standard roll sizes will often not be compatible with a given manufacturing setup or die cut pattern, which is why a large number of TPU providers note in their FAQs that stock sizes don’t necessarily align with specific customer requirements, and that slitting and custom production is readily available.11 Instead of forcing you to adapt your assembly and die design around our inventory of available thicknesses and widths, we’ll make our tpu film to your precise specifications.
Buyers sourcing from a tpu film supplier should demand a declaration for:
REACH Compliance
RoHS Compliance
SVHC Status
ISO 10993 Reports
…prior to pricing the supplier.7,8,12
Important Note
Attractive pricing but missing paperwork is a recurring pattern in this industry, a pricing advantage which quickly dissipates once the lead time associated with customer or regulatory approval adds weeks to your schedule. Inform us of the market and application you are supplying, and we will identify and list all necessary documentation for your order before you sign on the dotted line.
REACH
Status Declaration
RoHS
Compliance Verified
SVHC
Substance Report
ISO 10993
Skin Contact
ISO 10993
Medical App
SGS Audit
Quality Mgmt
01
Pricing Factors Framework
The pricing for this material is based on multiple variables. Contact Tengyang to receive a price quote based on your application specifics.
02
Chemistry & Hardness
Polyether grade has a more expensive and complicated base polyol chemistry than the cheaper polyester grade.6
03
Thickness & Width
Thinner gauges, along with widths not aligned with standard rolls, impact yield. Focus on precision requirements to calculate total material efficiency.
04
Color & Surface Finish
Custom colors cost more than stock clear or matte. Surface treatment directly influences processing steps and final costs.
05
Volume & Documentation
Sample quantity vs. bulk production run significantly shifts per-unit pricing.
Testing & documentation requirements – e.g. REACH, RoHS and SVHC documentation, application specific testing.
06
Lead Time & Logistics
Just like price, lead time must be seriously vetted. Both HMA film prices and TPU film lead times have seen significant fluctuation throughout 2026 due to raw material supply issues and logistics problems affecting the entire adhesive-film sector.13 Ensure you secure a concrete, written lead time very early in your project, don’t assume a supplier’s “standard” lead time will hold for your particular film and for the time of year. If comparing prices for tpu film, make sure to level the playing field regarding thickness, width, and any additional testing requirements before looking at the number alone; comparing a quote for a clear tpu film with a price for a compliant medical grade tpu film product wouldn’t be a fair comparison.
From one roll to a large custom tpu film wholesale order, the same pricing elements will be considered. Request a price break down by roll or sheet to see exactly where costs are distributed.
When exporting product, your international shipping Incoterms will dictate risk and cost at each point of the international shipment.14 Consult the U.S. International Trade Administration Incoterms guidance prior to finalizing a purchase order; we’ll clarify the applicable Incoterm based on your shipping needs and product packaging.
Polyether TPU Film Engineering & Selection Toolkit
Polyether vs. Polyester TPU — Which Grade Fits Your Application?
Answer 4 questions about your application. This uses the same property logic covered in our Polyether vs. Polyester comparison table above — no fabricated scoring, just the documented trade-offs between the two chemistries.
TPU Film Compliance Checklist — What to Request Before You Order
Check the documentation relevant to your market and application. This reflects the same evaluation framework covered in our Quality & Customization section above — request these before price negotiation, not after.
TPU Film Compliance Checklist — What to Request Before You Order
Check the documentation relevant to your market and application. This reflects the same evaluation framework covered in our Quality & Customization section above — request these before price negotiation, not after.
Frequently Asked Questions
What is polyether TPU film?
The material is made with a polyether-based soft segment (ether-linked polyol) rather than the ester-linked polyol used in polyester TPU, giving it the higher level of hydrolysis resistance and flexibility required for this application, along with excellent microbial resistance, but at the expense of higher tensile strength and chemical resistance than polyester grade.
What is the difference between polyether and polyester TPU film?
Polyester grade is superior for its higher tensile strength, cut and tear resistance, and resistance to oils, whereas polyether grade is superior in hydrolysis resistance, flexibility at cold temperatures and microbial resistance, as indicated in the comparison chart above.
Is TPU film food safe or skin-safe?
The specific application will dictate its fitness for food or skin contact. Check against your region’s regulatory requirements such as FDA food-contact regulations, or ISO 10993 for medical or skin contact applications. Share your application with us and we can advise on what regulations apply and how best to approach your product.
Does polyether TPU film meet ISO 10993 biocompatibility requirements?
ISO 10993 isn’t just a pass or fail criterion. Instead, it’s a set of endpoints tested based on the duration of contact and the type of body contact (external-communicating, surface or implant).7,8 What constitutes acceptable usage for your product will vary depending on the product’s classification and target market; simply share your product details and we will let you know what ISO 10993 documentation you need before we give you a price.
What is the difference between TPU and PU film?
Because TPU can be processed through melt without creating any cross-links, it can be re-melted and re-processed without degrading. General PU can include cross-linked, non-thermoplastic formulations that don’t reprocess the same way, tpu film is a subset of the broader polyurethane film category, not an interchangeable synonym for it.
What does “soft” TPU mean?
Typically refers to the softness of the plastic, it could also imply a feel or texture that’s similar to fabric, which is common in the case of a polyether brand, although hardness varies with formulation and not simply with chemistry.
What colors are available?
Could be clear or any tinted or custom color-tell us the exact color that you’re aiming for.
Where can I find polyether TPU film for sale in roll or sheet form?
The tpu film offered by Tengyang is sold as a custom order item, rather than one that you’d find on an off-the-shelf price sheet. You can obtain pricing for tpu film sheet or a roll by telling us your target thickness, width, and the quantity you’re looking for. Common polyether tpu film uses — medical, wearable products, textile lamination — each tend to land in a fairly narrow spec band, so let us know yours and we’ll quote against it directly.
What is the minimum order quantity for custom polyether TPU film?
Depending on the formulation (color, thickness and melting point), your MOQs may vary, as a minimum will be less stringent on more standard color or temperature options compared to a fully custom color or melting point product. We’ll provide you with your exact MOQ once you’ve confirmed the application and the target volume.
Can Tengyang match a specific thickness, width, or melting point?
Yes, Tengyang’s specialty lies in its custom solutions. Custom thicknesses, widths, melting points and colors are part of what we do-they aren’t exceptional. Share with us your parameters and the application and we can tell you if the material is suitable for your product before samples are produced.
Why is it hard to find a manufacturer for custom composite TPU film?
It’s a recurring complaint in manufacturing sourcing circles: buyers looking for a specific spec combination, a barrier layer plus a particular base film, for example, often report suppliers steering them back to catalog products instead of engaging with the actual requirement. That’s a formulation and process-control problem, not a reason to accept an off-spec substitute. Let us know the specific combination of barriers or composite requirements you’re after, and we’ll honestly tell you whether it’s something we’re able to produce.
How long does sampling take before a bulk order?
This depends on the application and whether the formulation required matches an existing material or will necessitate entirely new development. Custom color and thickness on an existing film generally have shorter lead times for samples than developing a new hardness level or melting point. Share the application information you have and we’ll let you know what project turnaround times look like for your project.
