BELLOFOAM Closed Cell Silicone Sponge Sheets

BELLOFOAM Closed Cell Silicone Sponge Sheets from Bellofram Silicones are the lightest high-consistency closed cell silicone rubber sheeting material on the market. It contains truly closed cells, as determined by the stringent ASTM-D-1056 water absorption under vacuum method, eliminating wicking. The formulation and construction of these sheets allows for continuous operation of materials over a wide temperature range of -85° to +400°F, with outstanding recovery after compression. The sheets skived from buns can be supplied from 0.125” to 2.00” thickness, or buns can be skived into sheets using a customer’s own equipment. There are three available ASTM-D-1056 hardness versions of the standard sheet, including one with the necessary enhanced fire retardant additives to meet UL94 V-0 specifications, and a second version with fluorosilicone sponge properties, meeting the requirements of AMS 3323. With these and other available options, BELLOFOAM™ silicone foam rubber sponge sheets cover a wide range of demanding physical, temperature, and chemical environments.

BELLOFOAM™ Closed Cell Silicone Foam Rubber Sponge Sheets are also available for direct order via our online shopping cart.  Please use the chart below to select the correct part number for your requirements. Please click on the model number below to view its specification sheet.

Why pay for the extra weight of press cured sheets, when BELLOFOAM™ Closed Cell Silicone Foam Rubber Sponge Sheets will address your sealing problems?

Contact us today for a product sample or quotation.

BELLOFOAM Closed Cell Silicone Sponge Sheets

Benefits:

  • Low flame
  • Very low compression set
  • Soft compression force
  • Handles temperature extremes
  • UV & weather resistant
  • Flame retardant (BELLOFOAM™ 7629)

A comparative chart of BELLOFOAM™ silicone foam rubber sponge sheet material types may be found below:

BELLOFOAM Closed Cell Silicone Sponge Sheets

BELLOFOAM™ CLOSED CELL SILICONE SPONGE RUBBER SHEETING
BELLOFOAM™ MATERIAL TYPE COLOR COMPRESSION  DEFLECTION (PSI)
ASTM D-1056
COMPRESSION SET
ASTM D-1056
DENSITY (LBS/FTᶟ) ASTM D-1056 WATER ABSORPTION ASTM D-1056
FLAMMABILITY FMVSS302

TEMPERATURE
RANGE
(F°)

MATERIAL SPECIFICATIONS
7604 ALL 0 to 5 6% 12 MAX 10% MAX PASS -85° to +400° ASTM D-1056 2D0
ASTM D-1056 2D1
7704 ALL 5 to 9 6% 20 MAX 10% MAX PASS -85° to +400° ASTM D-1056 2D2
7804 ALL 9 to 13 4% 30 MAX 10% MAX PASS -85° to +400° ASTM D-1056 2D3
7629 GREY ONLY
0 to 5 25% 12 MAX 10% MAX PASS -85° to +400° ASTM D-1056 2D0, 2D1 UL 94, V-0
BELLOFOAM™ CLOSED CELL FLUOROSILICONE (FVM) SPONGE SHEETING
MATERIAL COLOR CLASS DESIGNATION
AMS 3323
COMPRESSION DEFLECTION (PSI)
ASTM D-1056
COMPRESSION SET
ASTM D-1056
DENSITY (LBS/INᶟ)
ASTM D-1056
FLUID RESISTANCE
ASTM D 471 (FUEL B)
TEMPERATURE RANGE
(F°)
MATERIAL SPECIFICATIONS
7748 LIGHT BLUE
ONLY
CLASS 1 2 – 9 25% MAX 0.025 MAX WEIGHT CHANGE MAXIMUM
0 – 50%
­-85° to +400° AMS3323
SAE AMS3323