FLEX WEAR

UHMW-PE – Ultra-high-molecular-weight polyethylene

FLEX WEAR

Flex wear "sandwich sheet" is manufactured from an ultra-high molecular weight low pressure polyethylene (PE-UHMW) with a molecular weight of approximately 5 million g/mol. The sheet is used in the bulk goods transport sector and serves to indicate the amount of wear. A change in the sheet color indicates that 75% of the sheet has been used and the sheet should be changed. This guarantees constant visual monitoring of the system. We deliver FLEX WEAR as plastic sheets.

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Physical properties
  Value Unit Test method
Specific gravity 0.94 g/cm3 DIN EN ISO 1183
Average molecular mass – 106 g/mol
Water absorption, 24/96 h (23 °C) ≤ 0.01 % DIN EN ISO 62
Weather-resistance –
Combustibility HB UL 94 DIN EN ISO 527-2
Food safety yes
Mechanical properties
  Value Unit Test method
Modulus of elasticity – MPa DIN EN ISO 527-2
Tensile strength 27 MPa DIN EN ISO 527-2
Elongation at break – % DIN EN ISO 527-2
Tensile strength at break 400 % DIN EN ISO 527-2
Flexural modulus 700 MPa DIN EN ISO 178
Flexural strength – MPa DIN EN ISO 178
Compressive modulus – MPa EN ISO 604
Compressive strength, 1%/2% – MPa EN ISO 604
Impact strength (Charpy) – kJ/m2 DIN EN ISO 179-1eU
Notch impact strength (Charpy) > 80–140 kJ/m2 DIN EN ISO 179-1eA
Notch impact strength (Izod) – kJ/m2 DIN EN ISO 180/2A
Toughness (ball pressure) 38 MPa ISO 2039-1
Toughness (Shore D) 64–67 Sh D DIN EN ISO 868
Wear-resistance 100 % Sand-Slurry
Coefficient of friction (against steel) 0.1–0.2 μ
Thermal properties
  Value Unit Test method
Glass-transition temperature – °C DIN 53765
Melting point – °C DIN 53765
Operating temperature (instantaneous) +135 °C
Operating temperature (continuous) + 80 °C
Operating temperature (minimum) -200 °C
Thermal expansion coefficient, 23–60 °C 20 10-5 K-1 DIN EN ISO 11359-1;2
Thermal expansion coefficient, 23–100 °C 20 10-5 K-1 DIN EN ISO 11359-1;2
Specific heat capacity 1.8 J/(g×K) ISO 22007-4:2008
Thermal conductivity 0.42 W/(m×K) ISO 22007-4:2008
Electrical properties
  Value Unit Test method
Surface resistivity ≥1014 Ω DIN IEC 60093
Resistivity ≥1015 Ω×cm DIN IEC 60093
Dielectric strength 45 kV/mm DIN EN 60243-1
CTI value N/A
Optical properties
  Value Unit Test method
Light transmittance –
Refractive index –
Optical errors – DIN 52305/AS
Abrasion-resistance, 100 rotations with 500 g – % haze ANSI Z26.1

Additional downloads

Delivery selection plastic sheets
Specific gravity 0.94 g/cm3
Service temperature -200 … + 80 °C
Price category

Special properties

  • excellent wear-resistance
  • good sliding characteristics
  • broad service temperature range
  • two-colour material to signal the amount of wear
  • excellent weather resistance
  • excellent resistance to wear
  • high chemical resistance
  • excellent impact resistance
  • wear signal
  • FDA (Food and Drug Administration) approved

Applications

lining material in tanks, containers and silos, lining material in truck beds, wheel loaders, different targets of applications in mines, agricultural technologies, waste management

Standard colours

natural (beige), green

Premade pieces

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