Where minimal thickness and maximum flexibility are required, PU-UF03 delivers. This 0,3 mm transparent Poly Urethane film by Filcoflex B.V., based on polyether TPU, is the thinnest grade in the PU-UF range. It is lightweight and highly pliable, which makes it well suited for thin membranes, diaphragms, inspection windows and protective covers that need to move freely.
Thanks to its “no memory” behavior, the film returns to shape without stress cracking, even under continuous flexing. The high-gloss, non-porous surface resists contamination, cleans quickly and is compatible with Clean-In-Place (CIP) systems. The polyether base also provides good hydrolysis resistance in humid or wet environments.
Despite its low gauge, PU-UF03 offers strong abrasion and chemical resistance. As a thermoplastic it can be welded seamlessly into custom shapes. Options include grounding/earthing and embedded NFC/RFID tags. Its clarity allows direct visual process inspection.
Certificates, compliances and technical data are available in the “Downloads” section.
Thanks to its low thickness and high flexibility, PU-UF03 is used in a wide range of bulk handling and process equipment, including:
ATEX and explosion safety
The electrostatic properties of PU-UF03 have been tested in accordance with IEC 60093/EN 1149 and TRGS 727. The table below shows how and where this material can be used safely in ATEX zones. The measured values are in the specifications table, and the full “Electrostatic properties test report” is available in the Downloads section.
As the thinnest grade in the range, PU-UF03 also serves as the worst-case ATEX reference for PU-UF05, PU-UF07 and PU-UF09.
| Airspeed | Minimum Ignition Energy | Maximum length | ATEX zone |
|---|---|---|---|
| < 2 m/s | > 1 mJ | 100mm | 20, 21, 22 |
| > 2 m/s | > 1000 mJ | 100mm | 20, 21, 22 |
Pressure resistance for flexible connectors
The pressure values in the specifications table apply at temperatures up to 60 °C / 140 °F. At these pressures, a sleeve may expand or contract. To limit this deformation, Filcoflex can integrate reinforcement rings into the cylindrical shape.
Need higher pressure, deeper vacuum or longer lengths? Contact us to discuss your application.
Weighing applications
PU-UF03 is one of the best materials available for accurate weighing and dosing. With an accuracy better than 0,01 kg, it performs on par with PTFE 310 fabric.
If an accuracy over 1 kg is sufficient, PU-UF1 is also a suitable option.
Availability of shapes, couplings and product features
PU-UF03 can be made into almost any flexible sleeve and many other custom products. Contact us to discuss shapes, couplings and features for your application.
Description
Ether-based thermoplastic Poly Urethane
Color
Transparent
Surface
Gloss/Gloss
Surface roughness
Ra <0,1µm
Wall thickness
0,3mm / 0.0118 Inch (±10%)
Hardness
86° Shore A
Areal density
0,34 kg/m2
Tensile strength
50 MPa
Tear resistance
32 N/mm
Surface resistance
5×1012 Ω
Volume resistance
4×1012 Ωm
Pressure resistance
0,1 Bar
1.5 PSI
Maximum elongation
600%
Operating temperature
-40°C to 90°C
-40°F to 194°F
Max surge temperature
100°C / 212°F
Low temperature flexibility
Good
Air permeability
0
Blackout characteristics
3,7%
34.606 lux of 35947 lux
Calulated based on the PU-UF1 meassurements
Type of material
Sheet on roll
Roll width: 1.500mm
Roll length: 50.000mm
Are you looking for additional (technical) information about this material? Or are you unsure whether it is the right choice for your application? Feel free to reach out to us—we're happy to help!
Filcoflex specializes in the design
and manufacture of
Poly Urethane, silicone, rubber, and textile flexible connections for bulk product transport.
