Introducing Bellofram Elastomers

Bellofram Diaphragm and Bellofram Silicones, two legendary names, become one

Bellofram Elastomers is the newly unified entity created by joining together Bellofram Diaphragm and Bellofram Silicones — two legendary names in the world of elastomer innovation. This strategic merger provides a single access point for customers seeking a full range of high-performance elastomer products, backed by decades of expertise and US-based manufacturing.

Bellofram Elastomers combines the engineering legacy of Bellofram Diaphragm — credited with inventing the original rolling diaphragm in 1950 — with the material science expertise of Bellofram Silicones, a leading silicone manufacturer and a trusted source for silicone rubber compounds, including closed cell silicone sponge and custom extruded materials. Bellofram Silicones is the only US-based manufacturer that offers skived sheets made from silicone buns — without a rind — resulting in the lightest density and lowest closure force material available on the market.

The value proposition of Bellofram Elastomers lies in its ability to offer three highly specialized capabilities from one manufacturer — the only company to do so.

The first is manufacturing closed cell silicone sponge, available in both extruded and molded forms, designed for performance in demanding, high-temperature applications.

Skived closed cell silicone sheets are also a unique product only available from Bellofram Elastomers. Skived from buns, there is no rind on either side, resulting in superior consistency and performance.

Lastly, we offer formed fabric-reinforced diaphragms, manufactured with precision and durability, serving a broad range of critical sealing applications. Bellofram is among the few global manufacturers offering this specialized product.

In addition to manufacturing, Bellofram Elastomers is also a leader in silicone compounding, offering custom material formulations tailored to meet specific application needs. This capability ensures that customers receive elastomer solutions that meet exact performance, environmental, and regulatory requirements. Being both an in-house custom compounder and manufacturer of finished goods allows Bellofram Elastomers to be a one-stop shop for most customers, saving them time, money, and resources.

While products from the former divisions serve a wide range of industries and applications, there is significant market overlap. Bellofram Elastomers was created to streamline access to these solutions, giving customers a single, trusted point of entry into a world of high-quality elastomer options — all backed by US-based manufacturing excellence.

Every product under the Bellofram Elastomers name is defined by precision manufacturing, deep institutional knowledge, and a commitment to solving complex challenges through engineered elastomer and silicone rubber compound solutions.