Closed Cell Silicone Sponge Sheeting


Bellofram Silicones has announced the global market introduction of BELLOFOAM™. BELLOFOAM™ is a proprietary, closed cell silicone sponge sheeting, designed to support a variety of industrial, manufacturing, gasketing, insulation, sealing, and padding requirements in automotive, aerospace, factory floor, industrial, medical, refinery and pharmaceutical environments. Offered in a variety of densities, thicknesses, and pigment matched colors, BELLOFOAM™ is uniquely produced in bun form.

The bun provides the core from which sheets are skived horizontally, allowing Bellofram Silicones to offer a product with higher consistency and 25% less weight than other closed cell silicone sponge sheeting available on the market. This method also allows Bellofram Silicones to produce up to 2.000” thick sheets, depending upon customer requirements. The unique closed cell design of BELLOFOAM™ is designed around the ASTM D 1056 specification for prevention of water absorption. Three density ranges are available to meet requirements of ASTM D 1056 2D1, 2D2 and 2D3 (AMS 3195). A flame retardant version offers a UL Certification to UL 94 V, 0. In addition, BELLOFOAM™ fluorosilicone sheets and buns meet AMS 3323 Class 1 requirements. Customers may also opt to purchase buns to skive their own sheets. Pressure-sensitive adhesives may also be added, in support of assembly requirements.


  • variety of densities, thicknesses, and pigment matched colors
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