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Incomparable thermal resistance

 

Plastics are materials characterised by low elasticity, so subjected to a load they tend to deform permanently. They are classified according to their thermal resistance into:

– standard plastics (e.g. PE) resistant up to about 70/80°C

– plastics for engineering (e.g. PA, POM and PET) with thermal resistance between 100 and 150°C

– high performance plastics
 (e.g. PTFE, PEEK, PSU, PPS, PVDF, and PI) with thermal resistances of over 150°C.

The only thermal subdivision is, however, very limiting as each plastic material has features that make it a valuable support for the production of both simple components such as bushes and of increasingly complex details. There are plastic materials with high load resistance and others with a very low friction coefficient. Some have a high resistance to sanitising products, while others have a more general chemical resistance. There are also strongly hygroscopic plastics (which dilate according to the absorbed moisture) and others offering high thermal dilatability or subject to hydrolysis in the presence of hot water or steam. Lastly, some plastics are filled with special additives that make them even more suitable for some applications. To choose the right plastic material for gaskets, guides or other details, you need to be a professional. That’s why ATP technicians are constantly researching plastics, their uses and new developments making this knowledge available to their customers.

Standard Plastics

Modified polyethylene with inert fillers characterized by high toughness, good resistance to wear and abrasion.

Modified high molecular weight polyethylene characterized by high toughness, good resistance to wear and abrasion, complying with regulation 1935/20004 and FDA certified.

Modified high molecular weight polyethylene characterized by improved thermal resistance, compliant with regulation 1935/20004 and FDA certified.

For engineering

Thermoplastic resin with good chemical resistance and high resistance to loading and wear. Not suitable for contact with steam.

Widely used crystalline polyethylene has excellent mechanical properties that are stable in moisture. It offers good workability and reduced static and dynamic friction values.

Acetal resin with good dimensional stability, low friction coefficient and excellent wear resistance.

Polyethylene characterized by a high thermal resistance, wear, fatigue and a good resistance to creep.

High performance plastics

Plastic material with excellent tribological properties (low friction and wear), chemical and thermal resistance, compliant with regulation 1935/2004 and FDA certificate.

Plastic material with excellent tribological properties (low friction and wear), excellent chemical and thermal resistance.

Polymer characterized by good thermal, mechanical, electrical properties and excellent chemical resistance.

Special PTFE with excellent tribological properties (low friction and good resistance to wear), chemical and thermal resistance. Excellent for sliding on INOX.

Special PTFE excellent for sliding on stainless steel compliant with regulation 1935/2004, 10/2011 and FDA certificate

Special PTFE with excellent tribological properties (low friction and good resistance to wear), thermal resistance. Recommended for heavy hydraulic applications.

Special PTFE with excellent tribological properties (low friction and good resistance to wear), thermal resistance. Recommended for heavy hydraulic applications.