POM Polyoxymethylene - thermoplastic material with a high degree of crystallinity. Its density is 1.42 g/cm3.

Produced from formaldehyde by homopolymerisation of POM-H or copolymerisation of POM-C.

POM is one of the strongest and stiffest thermoplastics with very good dimensional stability. Thanks to its minimal moisture absorption, it is used for production of details permanently working in water with a temperature of 60-80°C, as well as for electrical insulation elements in a wet environment.
It is approved for direct contact with foodstuffs (physiological inertness). Both grades (POM-C, POM-H) are resistant to strong acids and oxidising agents, but do not dissolve or swell in any solvents used, in fuels or mineral oils. Used for the production of mechanical parts where good mechanical properties, high temperature variation, good sliding conditions are required.

• Properties: stiffness, impact resistance and very good sliding properties, modifiable properties, good creep resistance, low thermal expansion coefficient.
• Applications: precision mechanical parts such as gears, seals, plain bearings, guides, feeders, screws, nuts, hooks, fittings, various components of cars and other machines.

TPE thermoplastic elastomers, also known as thermoplastic rubbers, are rubber-like materials that can be processed by injection moulding.

These are blends of hard plastics such as PP, PA, PBT with soft rubber and modifiers. They comprise a very wide range, including TPO (thermoplastic olefin), TPV (EPDM+PP), TPS (styrene plastics), TPE (thermoplastic polyester), TPA (thermoplastic PA).

All these combinations have the properties of rubber and differ in their temperature and chemical resistances and in their degree of permanent deformation after compression.

Applications: wide range of automotive applications, sealing and insulating materials. Manufacture of sports equipment, manufacture of everyday items such as toothbrushes, razors, etc. Manufacture of spectacle frames, toys. Production of seals.

• Min./Max. temperature: -45 to 80 (TPU + polyester up to 100, short term up to 120)
• High abrasion resistance
• High crush and tensile strength
• No brittleness below glass transition temperature
• Not resistant to: glycols, alcohols, ketones, esters, ethers, acids, alkalis, amines, hot water.
• Chemical resistance to: propane, butane, white spirit, mineral oils and greases, water up to 50°C, ozone. It is also resistant to ageing.
• Use: Mechanical engineering, automotive, aerospace, marine and shipbuilding, cable, hose, energy, medical, footwear and even toy industries.

An ethene polymer, the second basic material of the polyolefin group, one of the most widespread in the world in terms of application.

Polyethylene is a flexible, waxy, colourless plastic with high resistance to acids, alkalis, salts and low temperatures and low water vapour permeability.

It is not resistant to strong oxidants and concentrated acids: sulphuric, nitric and chromic. Its degradation temp is about 300 degrees C and it melts at about 150-160 degrees C.

PP (polypropylene) is a basic material from the group of polyolefins, produced using the Ziegler-Natta method, by low-pressure polymerisation of propylene.

It is a partially crystalline material with a density of 0.905-0.915 g/cm3. No resistance to temperatures below 0 degrees C, melts at about 160-165 degrees C.

Resistant up to 120 degrees to: salt solutions, strong acids, alkalis, detergents.

Applications: from simple pipes, gutters, cable sheathing, through packaging, car fittings to food packaging such as cups or beverage bottles.