Spring Energized Seals for hydraulic fluid sealing. Designed for extreme and demanding applications.
A chart listing the most popular compounds and their fluid compatibility / technical information.
Seal & Design Canada: Toronto, Ontario 
Headquarters: Clarence, NY BISCO® CELLULAR SILICONES
BISCO® Cellular Silicones are ideal for sealing, cushioning, vibration isolation, and insulation. Their resistance to environmental extremes, mechanical resilience and safety features make them perfectly suited for critical applications in transportation equipment, communications and electrical enclosures, electronic products and components, industrial machinery and appliances. BISCO Silicones also offer superb flame resistance and fire protection. Made in a wide range from ultra soft to extra firm, BISCO products serve as high-tech silicone sponges—with the enhanced sealing capabilities of traditional sponge rubber, but lighter in weight.
BISCO® CELLULAR SILICONE PRODUCTS
Product
Available
Thicknesses
Typical
Density
CFD Range
Specifications
Grade
Datasheet
BF-1000
0.063″-1.0″
12 PCF
1-5 PSI
UL V0 and HF1, BMS 1-68, AIMS 04-14-002, ASTM E162, E662, SMP 800C
Extra-Soft Silicone Foam
BF-2000
0.125″-0.500″
10 PCF
.25 PSI Maximum
UL V0 and HF1, ASTM E162, E662, SMP 800C
Ultra-Soft Silicone Foam
HT-350
0.031″-.50″
25 PCF
70 PSI
UL94 V-0, UL94 HF-1
Medium, Light Weight Foam. Superior sealing cellular silicone solution for gasketing and sealing applications that require light weight, flame resistance, and low compression force.
HT-800
0.031″-0.500″
22 PCF
6-14 PSI
UL V0 and HF1, AMS 3195, ASTM E162, E662, SMP 800C
Medium Silicone Foam
HT-820
0.031″-0.250″
24 PCF
12-20 PSI
UL V0 and HF1, AMS 3196, ASTM E162, E662, SMP 800C
Firm Silicone Foam
Headquarters: Clarence, NY
Seal & Design Canada: Toronto, Ontario
