Rubber extrusions are a fundamental yet often overlooked component in construction projects. Essential for various applications, these extrusions are created by forcing a raw rubber compound through a die of the desired cross-section under high pressure and temperature. This process allows for the creation of an extensive range of shapes and sizes suitable for almost any construction project.

Various types of rubber are used to manufacture extrusions, each with unique properties and applications. EPDM is favoured within the construction industry for its weather resistance and suitability within outdoor applications. Silicone rubber, known for its high-temperature resilience, can be reliably used in areas exposed to extreme heat. Neoprene stands out for its durability and is often employed in applications that require a robust material.


The rubber extrusion process begins with the rubber compound being fed into an extruder, where it’s heated and then forced through a die. The die shapes the rubber into the desired profile, which is then vulcanized to set its shape permanently. This process allows for the creation of complex cross-sections tailored to specific construction applications.

These profiles can be used for sealing windows and doors to ensure buildings are insulated and protected against the elements. This is important for energy efficiency and preventing moisture damage. Additionally, they are fundamental in expansion joints for large structures like bridges and skyscrapers, absorbing movements caused by temperature changes, wind or seismic activities.

Rubber extrusions also find essential applications in waterproofing, particularly in roofs and foundations where they prevent water ingress. They are instrumental in dampening vibrations in buildings near transportation hubs or in industrial settings, reducing noise and wear. In piping systems, rubber extrusions are used for insulation, maintaining temperature consistency and enhancing energy efficiency.

The versatility of rubber extrusions makes them a key component in the evolving landscape of the construction industry. Seals Direct offer an extensive range of off-the-shelf rubber extrusions and can supply most products in small or large quantities. Please contact our technical team to discuss your requirements.