SSP Fluorosilicones: Advantages, Applications, Types, and Specs

Fluorosilicones are silicone-based elastomers that contain fluorine additions for improved oil and fuel resistance. Like other silicone compounds, they exhibit excellent stability over a wide range of temperatures, typically from -60° C to +200° C. Fluorosilicones also provide good compression set and resilience, and can withstand ultraviolet (UV) light, ozone, and chlorinated and aromatic hydrocarbons.

Specialty Silicone Products (SSP) supplies a complete line of fluorosilicones in a range of durometers (Shore A) and colors. Some SSP fluorosilicones contain fillers that impart or enhance certain properties. For example, SSP supplies particle-filled fluorosilicones for EMI shielding in industrial or military applications.  SSP also supplies MIL-R-25988B and SMS AMS 3326 fluorosilicones.

Industrial Fluorosilicones for EMI Shielding

SSP’s industrial or general-purpose silicones for EMI shielding contain nickel-graphite particles. This fill material provides a reliable, cost-effective alternative to compounds that contain pure silver or silver-coated particles.



Product
Fill
Durometer (Shore A)
Tensile Strength (psi)
Elongation (%)
Tear B (ppi/min)
Typical VR (ohm/cm)
Third-Party Shielding Data


SSP-502F-50
Nickel-Graphite
50
130
477
33
.015
130 dB
@ 100 MHz


SSP-502F-60
Nickel-Graphite
60
225
350
45
.020
130 dB
@ 100 MHz


SSP-502F-
80
Nickel-Graphite
80
290
200
90
.015
N/A



 

Military Fluorosilicones for EMI Shielding

For military applications, SSP supplies silver-aluminum fluorosilicones that meet the requirements of MIL-DTL-83528, Type D.



Product
Fill
Durometer (Shore A)
Tensile Strength (psi)
Elongation (%)
Typical VR (ohm/cm)
QPL?
Third-Party
Shielding Data?


SSP-2486-70*
Silver-Aluminum
70
330
245
.005
Yes
137.4 dB @ 80 MHz


SSP-550-45
Silver-Aluminum
45
185
350
.002
No
137.8 dB @ 80 MHz


SSP-550-70
Passivated
Silver-Aluminum
70
300
250
.006
No
N/A



 

*SSP-2486-65 is the only QPL listed product that meets all the requirements of Type D. The other materials have not been fully tested.

 

MIL-R-25988B and SMS AMS 3326 Fluorosilicones

SSP also supplies military and aerospace fluorosilicones that meet the requirements of MIL-R-25988B and SAE AMS 3326.



Elastomer
MIL-R-25988B Callouts
Product Specifications


Product No.
Type
Class
Grade
Durometer (Shore A)
Tensile Strength (psi)
Elongation (%)
Tear B (ppi/min)


SSP-267
2
1
40
40
1500
500
130


SSP-338
2
1
50
50
1300
500
225


SSP-083*
2
1
60
60
1000
350
150


SSP-100
2
1
70
70
1000
250
128


SSP-372
2
1
80
80
800
170
102


SSP-338A
2
2
50
50
1300
500
225


SSP-082
2
2
75
75
900
150
100



 

Choose Fluorosilicones from SSP

Specialty Silicone Products (SSP) manufactures fluorosilicones for EMI shielding in industrial and military products, and for military and aerospace applications that require MIL-R-25988B and SAE AMS 3326 materials.  Here at our facility in Ballston Spa, New York (USA), we can manufacture 1000 ft. of materials per day – the equivalent of 600 standard 15” x 20” sheets.

To learn more, contact PGC.