O-Rings are among the most widely used sealing elements in industrial applications. Their simple geometry, availability in numerous sizes and compounds, and suitability for both static and dynamic applications make them appropriate for a wide range of systems. However, this apparent simplicity can lead to the selection phase being underestimated. An O-Ring with the correct diameter but made from a material that is incompatible with the fluid may deteriorate rapidly. Likewise,

Tecnonext has successfully passed the renewal audit for its ISO 9001:2015 certification, confirming that its Quality Management System continues to comply with the requirements of the international standard. The certification was issued by SQS – Swiss Association for Quality and Management Systems and is accompanied by an IQNET-recognised certificate, confirming Tecnonext’s Quality Management System in accordance with ISO 9001:2015. The IQNET certificate also records 8 Septem

Seals used in special-purpose vehicles and agricultural machinery often operate under conditions that are very different from those of equipment installed in a controlled environment. Outdoor temperature, water, mud, dust, UV radiation, ozone, oils, fuels, vibrations and variable operating cycles can act simultaneously on the component and alter its behaviour over time. In these applications, the seal must not only prevent fluid leakage. In many cases, it must also protect th

An elastomeric seal may appear dimensionally correct, be manufactured from the specified material and provide effective sealing during the initial stages of operation. However, this does not necessarily mean that it will maintain the same performance over time. When a seal remains compressed inside its groove for prolonged periods, the material may progressively lose part of its ability to recover its original shape. This phenomenon is commonly known as compression set, one o

Material selection is one of the most important aspects in the design and selection of a technical seal. Correct geometry and a properly dimensioned groove or housing may not be sufficient if the material is not compatible with the fluid, temperature, pressure or actual operating conditions. Elastomers, technopolymers and metals behave in very different ways. Elastomers are mainly valued for their elasticity and recovery capability; technopolymers offer chemical resistance, d

In gas systems, sealing solutions play a decisive role in ensuring operational stability, continuity of operation and long-term reliability. These are applications in which the seal cannot be considered a simple replacement component, but a technical element integrated into a complex system subject to pressure, thermal variations, operating cycles and specific application requirements. Choosing the correct solution depends on several factors: type of gas, operating pressure,

The development of a custom seal requires a different approach from simply selecting an already available component. When geometry, material, operating conditions or installation requirements cannot be addressed by a standard solution, it is necessary to start from the real application and build a structured technical process. A custom-designed seal is not just a component manufactured with a customised shape. It is the result of a series of evaluations involving function, ma

FFKM is one of the highest-performing elastomeric materials for particularly critical sealing applications. It is considered when operating conditions exceed the limits of more common materials and when the seal must work in the presence of aggressive fluids, high temperatures or severe application environments. However, choosing FFKM does not automatically mean choosing “the best material” in absolute terms. A high-performance compound must always be evaluated in relation to

Technical guide to seals for hydraulic systems: materials, pressure, temperature, wear, contamination and selection criteria.

Find out why a seal can leak: materials, tolerances, installation, compression set and operating conditions. Technical analysis for industrial applications.

Technical comparison between NBR, HNBR and FKM for seals used in pressure applications: differences, advantages and selection criteria based on the application.