SSP-352 is a 60-durometer silicone that meets the physical requirements in AMS 3303 and AA 59588 Class 2A and 2B, Grade 60. It can be pigmented.


AMS 3303 Silicone Rubber, 60 Durometer

SSP-352 is a 60-durometer silicone rubber that meets the physical requirements in the AMS 3303 specification. This heat-cured elastomer is also designed to meet the AA 59588 2A &2B, Grade 60 spec. SSP-352 uses a DBPH or dicumyl peroxide system and is supplied as compression molded sheet stock or a ready-to-mold compound. It can be pigmented as required, but the most popular colors are red and black. 

AMS 3303 Specification

The AMS 3303 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 3303.

AMS 3303 Shelf Life

The shelf life for uncatalyzed SSP-352 is indefinite, but this military and aerospace silicone may need freshening after 1 to 2 years. When catalyzed, the shelf life is 6 months. Cold storage will extend the shelf life for this general-purpose silicone rubber.

AMS 3303 Spec and SSP-352 Test Data

The AMS 3303 spec is available from SAE International. The table below shows test data for SSP-352 that was generated with the DBPH catalyst system.  


Typical Values

Shore A (55 - 65 range)


Tensile Strength (650 psi minimum)

1000 psi

Elongation % (150 minimum)


Tear B (35 ppi min)

75 ppi

Specific Gravity

1.32 – 1.38

Other tests performed in accordance with AMS 3303 and AA 59588 2A and 2B, Grade 60 specifications include:

  • 70 hours compression set

  • Brittle point

  • Torsional stiffness

  • Heat aging change

  • Volume change in water

  • IRM901 oil immersion change

AMS 3303 Data Sheet

Download the SSP-352 data sheet and compare this PDF against the AMS 3303 specs from SAE International. 

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