Typical Properties of Style AG-2889 50 Durometer Silicone Rubber

Style AG-2889 silicone rubber is a 50 durometer silicone that meets the necessary requirements of the AMS 3345 specification set out by the SAE. This rubber is a silicone specialized in aerospace and military applications and is available in a black, gray, or brick red color. It is also resistant to aircraft piston engine oil and deterioration by weathering. AMS 3345, and therefore AG-2889 silicone, covers silicone rubbers in tubing, strips, sheets, molded shapes, and extrusions.

Atlantic Gasket offers many silicone and fluorosilicone rubbers that meet other AMS specifications, like AG-2889 meeting AMS 3345. This list includes AMS 3301, AMS 3302, AMS 3303, AMS 3304, AMS 3305, AMS 3325, and AMS 3326. AG-2889 50 durometer silicone rubber is available in sheet stock, slit into stripping, or cut to size via die-cutting, waterjet-cutting, or knife-cutting (flash-cutting) in a natural color that can be pigmented as necessary.

Specifications Met:

  • AMS 3345

    • Property Specifications Typical Values
    Shore A Durometer 45 – 55 50
    Elongation (%) 450 Minimum 670
    Tensile Strength (psi) 1000 Minimum 1260
    Tensile Stress @ 100% (%) 90 Minimum 160
    Specific Gravity 1.17 – 1.23
    Tear-B (ppi) 150 Minimum 190

    The following tests are others performed in accordance with the AMS 3345 specification:

  • Brittle Point
  • Tensile Change
  • Elongation Change
  • Shore Change
  • 22 Hours Compression Set
  • Volume Change % in Oil
  • Heat-aged Tensile Change
  • Heat-aged Elongation Change
  • Heat-aged Shore Change

    • PDF Click here to download a specification Word document.