Etronax MF

Exclusively for mechanical applications. Shockproof, mechanically hard-wearing, noise-reducing, low friction. Very hard-wearing in aggressive and dusty environments.

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Specifications

  • Resin: Phenol
  • Reinforcement: Cotton fabric
  • Colour: Light brown

Closest relevant standards

IEC 60893:PF CC 201

NEMA LI 1:C

DIN 7735:Hgw 2082

Etronax MF - Sheet

This cotton-based material is suitable as a construction element where high mechanical loads and strong wear occur. It can be lubricated with water, oil or grease. It's weather- and saltwater-resistant and a good alternative to materials containing asbestos.
It is used for ball-bearing cages, tool manufacturing and assembly areas: e.g. as a fixture material to move parts across a table without scratching them.

Etronax MF vs. MMF

Etronax MF (PF CC 201) and MMF share the same basic profile. Both are cotton-based, wear-resistant, and can be used for ball-bearing cages, but MMF is reinforced with a finer weave. This isn't primarily a difference in mechanical strength: it comes down to the achievable surface finish and tolerance after machining. MF's coarser weave is sufficient for larger parts or applications where tight tolerances matter less.

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Properties

Friction-reducing

Suitable for components where frictional and rolling resistance may occur.

Easy to machine

The easy-to-machine material makes for unlimited possibilities.

Durable

Resistant material with long service life.

Low density

The compact structure of the material optimises its mechanical and electrotechnical properties.

Overview

Mechanical properties
Bending strength at RT ISO 178 ≥ 1,5 mm 115 MPa *1
Bending strength at a high temperature ISO 178 ≥ 1,5 mm MPa *
Modulus of elasticity ISO 178 ≥ 1,5 mm 7000 MPa *1
Compressive strength ISO 604 ≥ 5 mm 320 MPa *1
Izod impact strength, parallel with layers ISO 180/2A ≥ 5 mm 10 Kj/m2 *1
Shearing strength, parallel IEC 60893-2 ≥ 5 mm 40 MPa *1
Tensile strength ISO 527 ≥ 1,6 mm 80 MPa *1
Electrical properties
Electrical strength in oil at 90°C, perpendicular IEC 60243-1 3 mm 1 kV/mm *2
Electrical strength in oil at 90°C, parallel IEC 60243-1 ≥ 3 mm 5 kV/25mm *2
Permitivity 50 MHz IEC 62631-2-1 ≤ 3 mm *
Permitivity 1 MHz IEC 62631-2-1 ≤ 3 mm *
Dissipation factor 50 MHz IEC 62631-2-1 ≤ 3 mm *
Dissipation factor 1 MHz IEC 62631-2-1 ≤ 3 mm *
Insulation resistance after submersion in water IEC 62631-3-3 All 1 MΩ *4
Comparative tracking index IEC 60112 ≥ 3 mm 100 CTI *1
Physical and thermal properties
Temperature index 20,000 h (T.I.) IEC 60216 ≥ 3 mm 100 °C *
Fire class IEC 60695-11-10 *
Density ISO 1183-A All 1.35 g/cm³ *
Water absorption ISO 62-1 50x50x3 mm 120 mg *
Smoke emission & toxicity EN 45545-2; R22, R23 & R24 *
Oxygen Index (OI) EN ISO 4589-2 %
Smoke density (Ds max.) EN ISO 5659-2 *
Smoke density (Ds max.) EN ISO 5659-2 *
Toxicity (CITNLP) NF X 70-100-1/-2 *
Toxicity (CITG, 8 min) EN 17084 *

Conditioning

1 24h/23°C/50%RH
2 24h/23°C/50%RH + 1h/ in oil at 90°C
4 24h/50°C/<20% RH + 24h in water at 23°C

The above values are average values resulting from extensive tests in our laboratories. ELEKTRO-ISOLA A/S disclaims any and all liability for the performance of our materials in applications outside our control. Elektro-Isola A/S reserves the right to modify the above data without notice or further information. Furthermore, we refer to our general disclaimer.

* Note that color and surface are indicative. As this is a technical product, colour and expression may vary according to dimensions, batches and machining. If you want further information or have special decorative needs, please feel free to contact us.