PE (PolyEthylene)

Polyethylene is a semi-crystalline thermoplastic with high toughness and chemical resistance, low mechanical strength in comparison to other plastics and cannot be used at high temperatures. The individual polyethylenes differ in regard to their molar mass (molecular weight), which is important for the respective physical properties. This means that in addition to the common properties that all types have, certain ones have type-specific properties.

Poly Ethylene

The polyethylene semi-finished products that we offer finished products – consist of high density polyethylene types produced by extrusion or moulding processes.

Main properties

Low density compared to other materials (0.94 g/cm3)
High impact resistance, also at low temperatures
Minimum water absorption (< 0.01%)
Excellent chemical resistance
High corrosion resistance
Anti-adhesive
Very good electrical insulator
High vibration absorption
Physiologically safe (does not apply to reprocessed semi-finished products)

Sliding properties

PE-HD (PE 300; molar mass approx. 200,000 g/mol) is very suitable for welding due to its relatively low molar mass; however, it is not abrasion resistant and has low stability values. This leads to a high level of sliding abrasion, which excludes its use in sliding applications.

PE-HD (PE 100, 80 & 63 grades are also available for commercial applications) where the utilization is general and not specifically logical in the terms of material properties.

PE-HMW (PE 500; molar mass approx. 500,000 g/mol) has better sliding properties because of its higher molar mass and is also more abrasion resistant than PE-HD. In combination with its good toughness, it is suitable for use in low stress components that are not subject to any high degree of sliding abrasion.

PE-UHMW (PE 1000; molar mass approx. 4,500,000 g/mol). Because of its high molar mass it has very good wear resistance, bending strength and impact resistance and good noise absorption. Due to its excellent sliding properties and low sliding abrasion, it is the ideal material for lightly loaded components.

Chemical resistance

All PE types are resistant to acids, alkaline solutions, salts and salt solutions, alcohols, oils, fats, waxes and many solvents. Aromatics and halogenated hydrocarbons cause swelling. All PE types are not resistant to strong oxidising materials (e.g. nitric acid, chromic acid or halogens), and there is a danger of stress corrosion cracking.

In addition to the good welding properties of PE-HD and PE-HMW, all PE types can also be machined.

Send Enquiry

Mr. Girish Dhawan (Proprietor)
No. 170, Gali Bandook Wali, Ajmeri Gate
New Delhi, Delhi - 110 006, India
Telephone:+(91)-(11)-23215389/ 32972567

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