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.
Technical Datasheets
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.
Modified high molecular weight polyethylene characterized by improved thermal resistance, compliant with regulation 1935/20004 and FDA certified.
High-density polyethylene: material characterized by excellent wear resistance, excellent sliding properties on soft counter-surfaces and high impact resistance
Plastic material characterized by excellent wear resistance, high hardness and rigidity. It also has high mechanical properties combined with high impact resistance.
Plastic material characterized by excellent wear resistance, high hardness and rigidity. It also has high mechanical properties combined with high impact resistance.
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.
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.
Plastic material characterized by excellent wear and low friction resistance due to the presence of a special filler. Excellent chemical resistance and good workability. It is not resistant to water above 60 ° C
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.
Reinforced technopolymer characterized by great dimensional stability and excellent resistance to wear, chemical agents and high temperatures. Particularly suitable for valve and compressors’ components.
Technopolymer characterized by excellent both mechanical and tribological properties and resistance to creep. The presence of special fillers gives to this material excellent thermal conductivity
Reinforced technopolymer characterized by great dimensional stability and excellent resistance to wear, chemical agents and high temperatures. Particularly suitable for valve and compressors’ components.
PTFE reinforced with special fillers that make this material particularly suitable for chemical and automotive industries. It is characterized by excellent tribological properties in low load and high speed conditions.
Filled PTFE characterized by excellent resistance to compressive strength and high hardness. It is used in compressor seals and lip seals which are not subject to too high load.
Special PTFE with excellent tribological properties (low friction and good resistance to wear), thermal resistance. Recommended for heavy hydraulic applications.
Modified PTFE characterized by high fatigue resistance. It is especially used for membranes and bellows’ production.
PTFE reinforced with special charges that make it detectable by metal sensors. Particularly used in the food industry.
PTFE modified with special fillers that significantly improve its resistance to the phenomenon of “gap extrusion”. It is mainly used in the chemical and automotive industries.
Reinforced PTFE characterized by excellent tribological properties, in terms of friction and wear. Excellent thermal conductivity, hardness and compressive strength properties.
Reinforced PTFE characterized by good wear resistance and good rigidity. Not suitable for uncoated counter surfaces.
PTFE reinforced with lubricating fillers that give good thermal conductivity, low coefficient of friction, high wear resistance. It is particularly suitable for dry sliding bushings, applications in aggressive and/or corrosive environments, components in contact with hot water and/or steam.
Reinforced PTFE characterized by good wear resistance and good rigidity. Not suitable for uncoated counter surfaces.
Reinforced PTFE characterized by good wear resistance and good rigidity. Not suitable for uncoated counter surfaces.
Reinforced PTFE characterized by excellent tribological properties in terms of friction and wear, especially when not in continuous contact with liquids. It is a material suitable for contact with food as it is FDA, EU 10/2011 and GMP 2023/2006 approved.
Reinforced PTFE characterized by excellent high load and chemical resistance, great wear resistance both on soft counter-surfaces and coated counter-surfaces. It is FDA, EU 10/2011, GMP 2023/2006 and USP CLASS VI approved.
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.
