SSP1331T is a 40-durometer silicone rubber that meets the physical requirements in the AMS 3301 specification. It is used typically for parts that operate from -85°F to 400°F (-65°C to 205°C). SSP1331T remains flexible over this temperature range but is not limited to such applications. This AMS 3301 silicone also resists weathering and petroleum-based lubricating oils. SSP1331T is supplied as a ready-to-mold compound or as compression-molded sheet stock. It’s available in black, red, or gray.
The AMS 3301 specification covers silicone rubber in the form of sheets, strips, tubing, extrusions, and molded shapes. SAE International, a professional association and standards-developing organization, defines Aerospace Material Specifications (AMS) like AMS 3301.
The shelf life for catalyzed SSP1331T is two months. Store below 80°F. Cold storage will extend shelf-life.
The table below compares typical values for SSP1331T against the AMS 3301 spec. The test data for this military and aerospace silicone was generated with Bis(2,4 Di -Chlorobenzoyl) Peroxide catalyst system.
Test | Specifications | Typical Values |
Shore A | 35 – 45 | 40 |
Tensile Strength, psi | 700 min | 1007 |
Elongation % | 250 min | 494 |
Tensile Stress @ 100% | 200 max | 91 |
Tear-B, ppi | 55 min | 62 |
Comp Set (70/150°C), % | 25 min | 22 |
Specific Gravity | 1.08-1.14 | 1.12 |
Fluid Immersion (IRM901 Oil) | ||
Shore A change, points | -15 max | -5 |
Tensile change, % | -25 max | -14 |
Elongation change, % | -20 max | -1 |
Volume Change, % | 15 max | 5.2 |
Heat Age 70 hours @ 225°C | ||
Shore A change, points | 10 max | -3 |
Tensile change, % | -20 max | -13 |
Elongation change, % | -40 max | -6 |
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Low Temperature Brittle Point @ -65°C | Pass 5 of 5 | Pass |
Download the SSP1331T data sheet and compare this PDF against the AMS 3301 specs from SAE International.
Contact SSP to request a quote, or for additional information about this silicone rubber.
