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Bellofram Silicone Products High Temperature Silicone Foam Products

Solid Extruded Silicone, Closed Cell Silicone Sponge Sheeting and Molded Silicone Rubber Products

Bellofram Silicones, a division of the Bellofram Group of Companies and a member of the Bellofram Elastomers group, is an industry leader in the design, development and manufacture of extruded silicone, silicone sponge foam sheeting, and molded rubber products, including specialty rubber compounds. We have taken the very best technology, chemistry, and rubber know-how from antecedents Mold Ex, MTI Specialty Silicones, and Groendyk Manufacturing to become a one-stop shop for sealing, gasket, and insulation requirements. Our products include:

Closed Cell Silicone Sponge and Solid Silicone Extruded Products

Our multiple extrusion lines and extensive expertise in custom formulations and tool-making capabilities allows Bellofram Silicones to produce closed cell silicone sponge and solid silicone rubber extrusions in almost limitless shapes, colors, and hardnesses. Our commercial closed cell silicone sponge compounds are designed to meet the ASTM D 1056 spec, range in density from 2D1 soft density to 2D5 firm density. Our Solid compounds are designed to meet the ASTM D 2000 spec, ranging in hardness from 30 Shore “A” to 80 Shore “A” durometer. Both sponge and solid silicone compounds are also available in flame retardant and NSF/ANSI 51 compliant versions. All silicone compounds are designed to exceed requirements of a wide range of industrial, aerospace, and MIL-specs.

BELLOFOAM™ Closed Cell Silicone Sponge Rubber Sheeting

Bellofram Silicones produces our proprietary silicone sponge rubber material in bun form, from which sheets are cut. This method is unique in the silicone sheeting industry, and allows us to offer the lightest-weight high-consistency closed-cell silicone sponge foam sheeting in the world. Unique manufacturing methods allow us to reduce weight by 25%, resulting in less expensive material. This method also allows us to produce up to 0.50” thick sheets, far exceeding the industry maximum of 0.188”. Our fluorosilicone sheets and buns meet requirements of AMS 3323. Three hardness ranges, including one fire retardant version and color pigment matching allows us to offer exact customer specification for sealing, gasketing, and insulating needs. Customers may also purchase a bun to skive their own sheets. Pressure-sensitive adhesives may be added, to assist in customer assembly.

Compression Molding

Bellofram Silicones offers silicone elastomer compression molding to create products that incorporate closed-cell and dense solid construction methodologies. Closed cell and dense formulations are strictly limited to silicone. These types are also available in a wide variety of elastomers, including nitrile, EPDM, FKM, SBR, fluorosilicone, and other materials. Various fabrics may be integrated within the process to enhance strength and limit stretch. All Bellofram Silicones proprietary formulas are developed to ensure their complete conformance with a wide range of industrial, NSF/ANSI 51 approved, aerospace, and MIL-spec requirements.

MATERIAL PROPERTIES FOR
CLOSED CELL SILICONE SPONGE PRODUCTS

Closed Cell Silicone Sponge Extruded 
5104
Closed Cell Silicone Sponge Extruded 
5104-NSF
Closed Cell Silicone Sponge Extruded 
5109
Closed Cell Silicone Sponge Extruded 
5129-BMS
Closed Cell Silicone Sponge Extruded 
5204
Closed Cell Silicone Sponge Extruded 
5204-NSF
Closed Cell Silicone Sponge Extruded 
5209
Closed Cell Silicone Sponge Extruded 
5300
Closed Cell Silicone Sponge Extruded 
5304
Closed Cell Silicone Sponge Extruded 
5304-BMS
Closed Cell Silicone Sponge Extruded 
5304-NSF
Closed Cell Silicone Sponge Extruded 
5309
Closed Cell Silicone Sponge Extruded 
5329-BMS
Closed Cell Silicone Sponge Extruded 
5404
Closed Cell Silicone Sponge Extruded 
5404-NSF
Closed Cell Silicone Sponge Extruded 
5409
Closed Cell Silicone Sponge Extruded 
5504
Closed Cell Silicone Sponge Extruded 
5504-NSF
Closed Cell Silicone Sponge Extruded 
5509
Closed Cell Silicone Sponge Extruded 
5529-BMS
Solid Silicone Extruded 
6304
Solid Silicone Extruded 
6304-NSF
Solid Silicone Extruded 
6305
Solid Silicone Extruded 
6309
Solid Silicone Extruded 
6400
Solid Silicone Extruded 
6404
Solid Silicone Extruded 
6404-NSF
Solid Silicone Extruded 
6409
Solid Silicone Extruded 
6500
Solid Silicone Extruded 
6504
Solid Silicone Extruded 
6504-NSF
Solid Silicone Extruded 
6505
Solid Silicone Extruded 
6509
Solid Silicone Extruded 
6600
Solid Silicone Extruded 
6604
Solid Silicone Extruded 
6604-NSF
Solid Silicone Extruded 
6609
Solid Silicone Extruded 
6700
Solid Silicone Extruded 
6704
Solid Silicone Extruded 
6704-NSF
Solid Silicone Extruded 
6709
Solid Silicone Extruded 
6800
Solid Silicone Extruded 
6804
Solid Silicone Extruded 
6804-NSF
Solid Silicone Extruded 
6809
Closed Cell Silicone Sponge Molded 
7104
Closed Cell Silicone Sponge Molded 
7104-NSF
Closed Cell Silicone Sponge Molded 
7109
Closed Cell Silicone Sponge Molded 
7129-BMS
Closed Cell Silicone Sponge Molded 
7204
Closed Cell Silicone Sponge Molded 
7204-NSF
Closed Cell Silicone Sponge Molded 
7209
Closed Cell Silicone Sponge Molded 
7304
Closed Cell Silicone Sponge Molded 
7304-BMS
Closed Cell Silicone Sponge Molded 
7304-NSF
Closed Cell Silicone Sponge Molded 
7309
Closed Cell Silicone Sponge Molded 
7329-BMS
Closed Cell Silicone Sponge Molded 
7404
Closed Cell Silicone Sponge Molded 
7404-NSF
Closed Cell Silicone Sponge Molded 
7409
Closed Cell Silicone Sponge Molded 
7504
Closed Cell Silicone Sponge Molded 
7504-NSF
Closed Cell Silicone Sponge Molded 
7509
Closed Cell Silicone Sponge Molded 
7529-BMS
Sheeting Sheets 
7604
Sheeting Sheets 
BELLOFOAM™ 7605
Sheeting Sheets 
BELLOFOAM™ 7629
Sheeting Sheets 
BELLOFOAM™ 7704
Sheeting Sheets 
7748
Sheeting Sheets 
7804
Sheeting Sheets 
7848
Sheeting Sheets 
7948
Solid Silicone Molded 
8304
Solid Silicone Molded 
8304-NSF
Solid Silicone Molded 
8305
Solid Silicone Molded 
8309
Solid Silicone Molded 
8404
Solid Silicone Molded 
8404-NSF
Solid Silicone Molded 
8409
Solid Silicone Molded 
8504
Solid Silicone Molded 
8504-NSF
Solid Silicone Molded 
8505
Solid Silicone Molded 
8509
Solid Silicone Molded 
8604
Solid Silicone Molded 
8604-NSF
Solid Silicone Molded 
8609
Solid Silicone Molded 
8704
Solid Silicone Molded 
8704-NSF
Solid Silicone Molded 
8709
Solid Silicone Molded 
8804
Solid Silicone Molded 
8804-NSF
Solid Silicone Molded 
8809