Silicone Products Silicone Rectangles

Bellofram’s silicone rectangles are precision-extruded to deliver consistent performance across sealing, gasketing, and insulation applications. Produced through high-quality silicone rectangle extrusion, these profiles are designed for environments where mechanical integrity, thermal stability, and long-term resilience are essential.

We offer extruded rectangles in roll format with customizable dimensions — allowing any combination of thickness and width, up to a 12” usable width. This flexibility makes them well-suited for a variety of use cases, from narrow strips for edge sealing to wide profiles for broader coverage applications.

Available in durometers ranging from 30 to 80 Shore “A”, these solid silicone rectangles are manufactured in-house with tight tolerances and material consistency. Whether your application calls for soft, compressible materials or firm, high-strength rubber, our in-house mixing and extrusion capabilities ensure the right formulation for your project needs.

Reliable Performance Across a Wide Range of Conditions

Engineered for versatility, Bellofram’s rubber rectangles maintain excellent mechanical and sealing performance across a wide temperature range, from -85°F to +400°F. This makes them ideal for use in environments with frequent temperature cycling, heat exposure, or outdoor conditions. They also resist UV, ozone, and general weathering — ensuring stability and reliability over time.

Industry Compliance and Versatile Applications

Our extruded rubber rectangles can be produced to meet a variety of regulatory and industry standards. Flame-retardant versions are available that comply with UL 94 V-0 and UL HB, supporting applications that require enhanced fire safety. We also offer FDA compliant and NSF 51 certified formulations for food-grade, beverage, and medical applications, providing confidence in the safety and suitability of our materials in sensitive or regulated environments.

From industrial gasketing and thermal insulation to vibration control and protective padding, Bellofram’s solid silicone rectangles serve a broad range of industries including aerospace, automotive, food processing, and electronics. Their form factor allows for easy die-cutting or trimming, and they can be supplied in continuous rolls for manufacturing efficiency.

Color customization and other tailored features are available to meet visual, functional, or branding requirements. With Bellofram’s commitment to quality and flexible production, you can count on our extruded silicone rectangles to deliver long-lasting, compliant performance — no matter how complex your application.”We offer rolls with any combination of thickness and width up to 12” usable width. Durometers ranging from 30-80 Shore “A.” Suitable for a wide range of temperatures from -85 to 400°F.