{"id":1832,"date":"2025-07-08T16:48:41","date_gmt":"2025-07-08T16:48:41","guid":{"rendered":"https:\/\/trade-world-one.de\/uncategorized\/gummiprofile\/"},"modified":"2025-07-09T16:32:01","modified_gmt":"2025-07-09T16:32:01","slug":"rubber-profiles","status":"publish","type":"post","link":"https:\/\/trade-world-one.de\/en\/know-how\/rubber-profiles\/","title":{"rendered":"Rubber profiles"},"content":{"rendered":"

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Rubber profiles in traffic and environmental technology: Your guide to sealing profiles & rubber seals<\/h2>\n\n\n\n

As a technical procurement partner with deep-rooted industry DNA, we at Trade World One encounter components on a daily basis whose strategic importance is often underestimated. Rubber profiles undoubtedly belong to this category. At first glance a simple component, on closer inspection the rubber profile turns out to be a highly specialized engineering achievement. The correct specification, procurement and quality assurance of these sealing profiles determine the operational safety, durability and approvability of entire systems. Whether as a door and window seal in a streetcar, as an edge protection profile on machines in environmental technology or as a vibration damper - rubber profiles are the silent heroes that protect systems from the weather, dirt, noise and mechanical stress.<\/p>\n\n\n\n

In this article, we share our practical knowledge from countless procurement projects for transportation companies and industrial plant operators. We shed light on the material science principles and manufacturing processes for rubber seals and focus on the challenges in the specification - where we deliver added value as a technical problem solver. Because while others are still discussing specifications for elastomer profiles, we have often already come up with the right solution.<\/p>\n\n\n\n

\"Rubber<\/figure>\n\n\n\n

Choosing the right elastomer: material basics for rubber profiles and sealing profiles<\/h3>\n\n\n\n

The performance of a rubber profile is largely determined by the choice of the underlying elastomer. “Rubber” is a generic term for a variety of polymers whose properties vary dramatically. Choosing the wrong material for your rubber strips or rubber seals can lead to premature failure and high subsequent costs.<\/p>\n\n\n\n

EPDM (ethylene propylene diene rubber) - The all-rounder for outdoor applications<\/h4>\n\n\n\n

EPDM is the workhorse for outdoor rubber profiles. Its outstanding weather resistance and resistance to ozone and UV radiation make it the ideal material for window seals and door profiles on buses and trains. EPDM profiles retain their elasticity over a wide temperature range. When specifying EPDM sealing profiles, we pay attention not only to the basic properties, but also to special compounds that are optimized for improved sliding properties or special fire protection requirements, for example.<\/p>\n\n\n\n

NBR (acrylonitrile butadiene rubber) - The specialist for oils and greases<\/h4>\n\n\n\n

Where oils and greases come into play, NBR rubber seals are the first choice. In traffic engineering, these rubber profiles can therefore be found in engine compartments or on hydraulic systems. One challenge is the precise definition of the requirements: The resistance of NBR is heavily dependent on the acrylonitrile content (ACN content) - a detail that is standard for us when specifying profile rubber.<\/p>\n\n\n\n

CR (chloroprene rubber \/ Neoprene\u00ae) - The all-rounder with flame protection<\/h4>\n\n\n\n

CR offers a balanced property profile. It has moderate oil and weather resistance and is characterized by good mechanical strength and flame resistance. We often specify CR edge protection profiles for cable guides or as universal rubber seals in industrial plants.<\/p>\n\n\n\n

VMQ (silicone rubber) - For extreme temperatures<\/h4>\n\n\n\n

When extreme temperatures are the rule, there is hardly any way around silicone rubber profiles. They retain their flexibility from -60 \u00b0C to over +200 \u00b0C. Their weakness lies in their lower mechanical resilience. Typical applications are seals in hot air systems, where Shore A hardness and tear resistance are less critical than temperature resistance.<\/p>\n\n\n\n

FKM (Fluororubber \/ Viton\u00ae) - The high-performance solution<\/h4>\n\n\n\n

FKM is the high-performance elastomer for the most extreme conditions. It offers unsurpassed resistance to chemicals and high temperatures. In environmental technology, we use FKM rubber seals for plants in the chemical industry. The procurement of these special elastomer profiles requires a global network - a core competence of Trade World One.<\/p>\n\n\n\n

Production of rubber profiles and profiled rubber: process and quality<\/h3>\n\n\n\n

Understanding the manufacturing processes is essential to ensure the quality of the end product.<\/p>\n\n\n\n

Extrusion and co-extrusion<\/h4>\n\n\n\n

Extrusion is the most common process for manufacturing rubber profiles with a constant cross-section. The rubber compound is pressed through a tool and vulcanization is then initiated, which gives the material its elastic properties. Co-extrusion allows different materials to be combined in one profile, for example a hard base for fastening (a clamping profile) and a soft sponge rubber profile body for sealing.<\/p>\n\n\n\n

Compression molding and injection molding<\/h4>\n\n\n\n

For complex geometries such as corner joints or three-dimensional molded parts, compression molding or injection molding are used. These processes are crucial for producing a closed sealing frame from extruded rubber strips, often by vulcanizing the corners for maximum tightness.<\/p>\n\n\n\n

Post-processing and assembly: where the solution is created<\/h4>\n\n\n\n

Our roll goes beyond the delivery of yard goods. We supply ready-to-use rubber profiles:<\/p>\n\n\n\n