PU-W1 is a white, opaque Poly Urethane film of 1,05 mm with a smooth matte finish on both sides, based on polyether TPU. The material is neither transparent nor translucent, so it effectively blocks light. That makes PU-W1 the right choice for processes that are sensitive to light exposure, or where a view into the process is not desired. Thanks to its “no memory” characteristics, it does not fracture under constant flexing. The smooth, non-porous surface prevents material degradation and supports hygienic operation in food processing environments.
PU-W1 offers excellent abrasion resistance, superior chemical resistance for CIP washing and great aging resistance. It is both strong and very elastic. Its outstanding low-temperature flexibility keeps the material pliable from -65 °C up to +70 °C, with surge resistance up to +100 °C. PU-W1 complies with FDA 21 CFR 177.1680 and 177.2600, as well as European food contact regulations (EC) 1935/2004 and (EC) 10/2011.
As a thermoplastic material, PU-W1 can be welded into smooth, nearly seamless sleeves using high-frequency, heat contact or hot air welding, and vacuum formed into custom shapes. When visual inspection is needed, transparent viewing windows can be integrated into the white material.
For material details, certificates and compliances, see the “Downloads” section.
PU-W1 is used in process and bulk handling equipment where light must be kept out of the process, including:
ATEX and explosion safety
PU-W1 has not been tested for its electrostatic properties, and no ATEX risk assessment has been made for this material. For use in dust explosion hazardous areas, we recommend an antistatic alternative such as PU-UF1, which is practically the same material only transparent.
Contact us for advice on the right material for your ATEX zone.
Pressure resistance for flexible connectors
The values in the specifications table apply within the material’s operating temperature range. Where increased pressure or high temperatures are expected, we recommend using the shortest possible connector. Filcoflex can integrate reinforcement rings to limit expansion or contraction of the sleeve.
Contact us for higher pressures and longer lengths.
Weighing applications
PU-W1 is suitable for high-volume and high-capacity weighing and dosing applications. See the “Weighing and dosing guide” for further information. Need high weighing accuracy? Contact Filcoflex to explore weighing flexible connections such as silicone bellows, Poly Urethane bellows, or sleeves made from PU-UF03 or PTFE 310 fabric.
Availability of shapes, couplings and product features
PU-W1 can be custom made into almost any flexible sleeve and many other products, with optional transparent viewing windows. Contact us to discuss the options.
Description
Ether-based thermoplastic Poly Urethane
Color
White solid
Surface
Matt Smooth/Matt Smooth
Surface roughness
Ra <0,4µm
Wall thickness
1,05mm / 0.0413 Inch (±10%)
Hardness
88,4° Shore A
Areal density
1,12 kg/m2
Tensile strength
42 MPa
Tear resistance
55 N/mm
Surface resistance
-
Volume resistance
-
Pressure resistance
0,34 Bar
4.9 PSI
Maximum elongation
600%
Operating temperature
-65°C to 70°C
-85°F to 158°F
Max surge temperature
100°C / 212°F
Low temperature flexibility
Good
Air permeability
0
Blackout characteristics
99,9%
46 lux of 35947 lux
Type of material
Sheet on roll
Roll width: 2.000mm
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.
