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BISCO® BUN SILICONES

BISCO®bun silicone is a cellular silicone that is cast into blocks up to 8 inches thick. This lightweight, high quality material is typically used in cushioning and sealing applications and features FST (flame, smoke, toxicity) resistance. With a low compression set, and superior weather and UV resistance, this foam is favored as a cushion foam in passenger rail car and mass transit seating.

MF1®Bun Silicone comes in soft, medium, and firm in it’s traditional white color. MF1-55 is now available in gray, and is targeted more toward general industrial applications. BISCO®SilFXTM foam is the lightest silicone foam that is specially designed for aircraft seating and cushioning. As a non-petroleum, open-cell silicone, SilFXTM eliminates the need for fire-blocking while allowing for thinner seat cushions with lasting comfort.

BISCO® BUN SILICONE PRODUCTS

Product

Standard
Color

Typical
Density

Tensile 
Strength

Details

Grade

Datasheet

MF1-35

White

104 PCF

12.5 PSI

Passes ASTM G21 Anti-microbial testing.

Soft Industrial Grade Foam

MF1-55

White

112 PCF

12.5 PSI

Passes ASTM G21 Anti-microbial testing.

Medium Industrial Grade Foam

MF1-55

Gray

112 PCF

12.5 PSI

Passes FVMSS302 Flame Resistance testing.
UL94 V-0 and HF-1 Certification- Gray Only

Medium Industrial Grade Foam

MF1-75

White

128 PCF

13.5 PSI

Passes ASTM G21 Anti-microbial testing.

Firm Industrial Grade Foam

MF1-SilFXTM

White

3.2 PCF

12 PSI

Passes ASTM G21 Anti-microbial testing.
Passes FST Testing.

Low Non-Petroleum Foam