Alternative and trade names
METALEN K-31,501
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METALEN K-31 is an EPR-based polycomposition, unpainted, chemically modified by vinylalkoxysilane. Supplied with METALEN K-501, crosslinking catalysts in aqueous medium. K-501- white and contains an enhanced complex of stabilizers, which provides resistance to aggressive environmental factors, oxidative degradation, high thermal stability during processing, and UV protection.

This material data has been provided by METACLAY .

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts





23.0 °C

0.91 - 0.92 g/cm³

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GOST 15139




23.0 °C

600 %

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GOST IEC 60811-1-1

Hardness, Shore A

23.0 °C

88 - 92 [-]

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GOST 24621

Tensile strength

23.0 °C

18 MPa

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GOST IEC 60811-1-1



Surface insulation resistance

23.0 °C

1.00E+16 Ω·cm²

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Min., GOST 50499

Rheological Properties


Melt mass-flow rate

20 - 50 g/10min

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GOST 11645, 190°С/2.16kg

Technological properties

Application areas

Flexible low-voltage power cables.

Processing methods

1. Screw configuration: barrier screw, compression index of 2-2.5. 2. Temperature profile: Zone 1: 135°С, Zone 2: 140°С, Zone 3: 155°С, Zone 4: 170°С, Die plate: 200-210°С. Screw thermostatic (if available) 85-90°С. 2. Crosslinking recommendations: Water temperature at 90-95°С. The exposure time at the rate of 240 min (4 hours) per 1.0 mm of thickness. Metalen К-501 Thermal strain at 250°С: 50% and Percentage elongation: 0%.