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Muralen® black

Muralen® black is based on high molecular weight polyethylene (PE-HMW) and is ideally suited for use in applications that require the generally impressive material properties of polyethylene. However, it is only used in cases where the excellent slide and wear resistance properties of Original Material "S"® are not required. Because of its great cut, impact, and shock resistance, this material is often used to make underlays for cutting and punching machines and for ram guards.

Product families

Plastics — Basic Thermoplastics
  • Polyolefins

Other characteristics

Brand
Muralen
Polymer Name
High Molecular Weight Polyethylene (HMWPE)
Markets
  • Consumer Goods
  • Industrial
Applications

Consumer Goods — Other Consumer Goods Applications; Industrial — Other Industrial Applications

Capability

Chopping boards/underlays for cutting machines; Ram guards in supermarkets, cold stores, and abattoirs

Technology
Plastics
Material Features
  • Anti-Static
  • Chemical Resistant
  • Good Impact Strength
  • Impact Resistance
  • Shock Resistant
  • Weldable
Certifications and Compliance
  • EU Compliant
  • FDA Compliant
Plastics and Elastomers Functions
Resin

Technical data

Table 1 of 4

8 rows
CharacteristicValueUnitMethod
Average Coefficient of Friction against Steel⁶ (0.25 m/s, 0.25 N/mm²)approx. 0.2μ—
Breaking Elongationmin. 500%DIN EN ISO 5272
Charpy Impact Strength (Two-sided Notch)min. 25kJ/m²DIN EN ISO 179
Coefficient of Elasticity (Tensile Test)min. 700MPaDIN EN ISO 5272
Hardness62 - 66Shore DDIN EN ISO 868
Indentation Hardnessmin. 35MPaDIN EN ISO 2039
Sand-Slurry Test350%DIN EN ISO 15527
Yield Stressapprox. 25MPaDIN EN ISO 5272

Table 2 of 4

6 rows
CharacteristicValueUnitMethod
CodePE - HMW—ISO 10431
Average Molecular Weight0.5 x 10⁶g/mol—
Densitymax. 0.96kg/dm³DIN EN ISO 11831
Material ColourBlack——
Sheet Group2.1—DIN EN ISO 15527
Water Absorption (Saturation at 23°C)max. 0.01%—

Table 3 of 4

7 rows
CharacteristicValueUnitMethod
Burning behavior UL 94 (Sample thickness 3/6mm)HB/HB——
Heat Conductivity (23°C)0.4W/(K x m)DIN 52612
Linear Thermal Coefficient of Expansion α (Average Value between 23 and 60°C)20 x 10⁻⁵m/(K x m)DIN EN ISO 113592
Lower Service Temperature⁴-100°C—
Melting Temperature130 - 135°CDIN EN ISO 3146
Upper Service Temperature Constant in Air (5000h)80°C—
Upper Service Temperature Short-term (Air)²90°C—

Table 4 of 4

2 rows
CharacteristicValueUnitMethod
Specific Surface Resistancemax. 10⁹ΩIEC 60093
Specific Contact Resistancemax. 10 6Ω x cmIEC 60093

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