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Bellofram Closed Cell Silicone Sponge Products

Bellofram Silicones extruded closed cell silicone sponge profiles are used when difficult sealing problems require a combination of complex gasket shapes and extreme flexibility.

Our full in-house die-making capabilities allow us to produce cords, rectangles, tubes, and other complex geometries. Our in-house mixing provides a choice of materials with a wide compression deflection rating, ranging from ASTM D 1056 2D1 soft density to ASTM D 1056 2D5 extra firm density, with a temperature range of -85° to 400°F for continuous use.

The self-forming skin enhances the profile’s water absorption resistance. We are a certified supplier of BMS 1-23 and BMS 1-60 products. We offer a flame-retardant version in each density range to make sealing possible in extreme environments. A fully certified NSF/ANSI 51 version produced from FDA ingredients is available, in applications where FDA compliance is required. Bellofram Silicones extruded closed cell silicone sponge profiles are available in any color.

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 
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
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