Full definition
Extruded seal profiles are continuous cross-sectional seals produced through a process of rubber or silicone extrusion, followed by vulcanization in either an autoclave or continuous tunnel system. This manufacturing method allows for the creation of seals with precise dimensions and consistent quality, which are essential in various industrial applications. The extruded profiles can be molded into standard shapes such as P (for door seals), D (for lid seals), E (double-lip seals), U (channel seals), and T shapes, among others. Additionally, they can be produced in solid or hollow round forms to meet specific sealing requirements.
The versatility of extruded seal profiles makes them suitable for sealing industrial doors, hatches, electrical enclosures, and windows against environmental factors such as dust, water, noise, and temperature fluctuations. The hardness of these seals can range from 40 to 80 Shore A, depending on the application and the material used. Common materials for these profiles include EPDM (Ethylene Propylene Diene Monomer), silicone, and neoprene, each offering unique properties for specific environments. EPDM provides excellent weather resistance and durability, while silicone seals excel in high-temperature applications. Neoprene, on the other hand, offers good oil and chemical resistance.
The selection of the appropriate extruded seal profile is crucial for ensuring optimal performance and longevity in sealing applications. Factors such as operating temperature, exposure to chemicals, and mechanical stress must be considered when choosing the right material and hardness. Furthermore, proper installation techniques are essential to achieve the desired sealing effectiveness, ensuring that the profiles fit snugly and maintain their integrity over time.