SSP-1773 is a 50-durometer silicone that meets the physical requirements for AMS 3302. It's available in red, gray, and brown


AMS 3302 Silicone Rubber, 50 Durometer

SSP-1773 is a 50-durometer silicone rubber that meets the phyiscal requirements in the AMS 3302 specification. This heat-cured elastomer uses various peroxide catalyst systems. SSP supplies this aerospace silicone as a ready-to-mold compound or as compression molded sheet stock. It’s available in red, gray, and brown.

AMS 3302 Specification

The AMS 3302 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 3302.

AMS 3302 Shelf Life

The shelf life for uncatalyzed SSP-1773 is indefinite, but this military and aerospace silicone may need freshening after 1 to 2 years. When catalyzed, the shelf life is 2 to 6 months. Cold storage will extend the shelf life for this general-purpose silicone rubber.

AMS 3302 Spec and SSP-1773 Test Data

The AMS 3302 spec is available from SAE International. The table below shows test data for SSP-1773.


Typical Values

Shore A (45-55 range)


Tensile Strength (700 psi minimum)

1300 psi

Elongation % (200 % minimum)


Tear B (35 ppi min)

65 ppi

Specific Gravity



Other tests performed in accordance with the AMS 3302 specification include:

  • 70 hours compression set

  • Brittle point

  • Shore change

  • Tensile change

  • Weight loss %

  • Oil immersion

  • Volume change %

  • Elongation change

  • Surface decomposition

  • Flat bend test

AMS 3302 Data Sheet

Download the SSP-1773 data sheet and compare this PDF to the AMS 3302 specs from SAE International. 

Contact SSP to request a quote, or for additional information about this silicone rubber.