
Silicone Products
Silicone Products Bonded Gaskets

Bellofram’s bonded gaskets provide reliable, custom-engineered sealing solutions for applications that require continuous, seamless performance. Designed for use in both static and dynamic environments, these gaskets are available in a range of materials and configurations to suit specific sealing requirements.
We offer bonded seals in both dense silicone and sponge silicone varieties, providing options for compressibility, flexibility, and sealing strength. Whether you need a soft profile for a tight-sealing gasket or a firmer material for structural support, Bellofram’s in-house fabrication and material blending capabilities allow us to tailor the solution to your unique application.
Our gaskets are manufactured to create a vulcanized seal, bonding the material into an endless loop or custom shape. This process allows us to create spliced o-rings, custom bonded o-rings, and complex perimeter seals like picture frame gaskets. These seamless bonds enhance performance and durability by eliminating weak points typically found in mechanically joined seals.
High-Performance Silicone Gaskets and Vulcanized Seal Solutions
As a leading manufacturer of silicone gaskets and silicone seals, Bellofram’s bonded products are trusted across industries such as aerospace, automotive, medical, food processing, and electronics. The ability to provide molded vulcanized seals or extruded profiles joined into precise geometries allows engineers and designers to source reliable, high-performing components that meet tight tolerances and long-term demands.
Custom Bonded Rubber Seals Built for Reliability and Compliance
We manufacture bonded gaskets using a wide range of silicone rubber materials, including flame-retardant, FDA-grade, and NSF-certified options. This ensures our bonded rubber seals not only meet your performance needs but also adhere to regulatory requirements. Whether sealing out moisture, protecting against vibration, or providing thermal insulation, our bonded solutions are designed to last.
From standard bonded o-rings to custom frame-like configurations, Bellofram delivers sealing components that are both functional and adaptable. Our team works closely with customers to develop tailored solutions that reduce assembly complexity, improve durability, and enhance product integrity.
If you’re looking for high-quality silicone seals or spliced o-rings that can stand up to demanding conditions, Bellofram’s bonded gasket solutions offer the precision, material performance, and customization you need. With a full suite of manufacturing capabilities and decades of expertise in sealing technology, we’re ready to support your most challenging applications.
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