Silicone Sponge Sheeting meets ASTM D 1056 specification.

Press Release Summary:

Offered in variety of densities, pigment matched colors, and thicknesses up to 2.000 in., BELLOFOAM™ is produced in bun form, which provides core from which sheets are skived horizontally. Closed cell design meets ASTM D 1056 specification for prevention of water absorption. Flame retardant version offers UL Certification to UL 94 V, 0. Available in 36 in.² sheets, product supports industrial, manufacturing, gasketing, insulation, sealing, and padding requirements.

Original Press Release:

Bellofram Silicones Division of Marsh Bellofram Introduces BELLOFOAM Closed Cell Silicone Sponge Sheeting

FOR IMMEDIATE RELEASE – Newell, West Virginia, USA – Bellofram Silicones (, a division of the Marsh Bellofram Group of Companies and an industry leader in the design, development and manufacture of extruded silicone, closed-cell silicone sponge sheeting, and molded rubber products, including specialty rubber compounds, 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.

For customer convenience, Bellofram Silicones BELLOFOAM™ closed cell silicone sponge sheeting is available for immediate online order, in 36 in2 sheets, and with a variety of standard colors and thickness, including flame retardant additive options, via the company’s website, at

For more information about the Bellofram Silicones division of Marsh Bellofram Corporation and its available product offerings, please contact the company toll-free at 1-800-727-5646, via email at

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