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SAE AMS3346

Revision G, July 1, 2013

Complete Document

Silicone Rubber 1000 psi (6.89 MPa) Minimum Tensile Strength 55 - 65 Durometer



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Product Details:

  • Revision: Revision G, July 1, 2013
  • Published Date: July 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 8
  • ANSI Approved: No
  • DoD Adopted: Yes

Description / Abstract:

Form

This specification covers a silicone rubber material that can be used to manufacture product in the form of sheet, strip, tubing, molded shapes, and extrusions.

This specification should not be used to address products such as O-rings, compression seals, O-ring cord, and moldedin- place gaskets.

Application

These products have been used typically for parts required to operate or seal at temperatures from -130 to +401 °F (-90 to +205 °C), compounded especially for high strength, but usage is not limited to such applications. Silicone elastomer is resistant to deterioration by weathering and aircraft piston engine oil and remains flexible over the temperature range noted. These products are not normally suitable for use in contact with gasoline or aromatic fuels and low-aniline-point petroleum-base fluids due to excessive swelling of the elastomer.

Terms / Definitions 

"Material"

The mixed rubber compound used to manufacture product. 

"Product" The ‘end product' being supplied to the contract/purchase order originator, usually in the form(s) specified in 1.1 above.

"Lot"

Shall be all products from the same batch of compound processed in one continuous run and submitted for inspection at one time. The material batch size allowed to form any single inspection lot of product shall not exceed 500 pounds (227 kg)

"Batch"

Shall be the quantity of compound run through a mill or mixer at one time.

(Note: Smaller batches of mixed compound may be formed into a larger batch by utilizing a cross blending process that insures the homogenous nature of the newly formed larger batch. When utilizing this process all ingredient traceability of the smaller batches must be maintained and directly tied to the resulting larger batch. Only the resulting larger batch needs to be subject to Batch Acceptance Testing requirements of this specification.)

"Mixer"

The vendor in the supply chain that performs the actual mixing of the Rubber Compound utilized to produce product.

"Masterbatch"

A batch of compound that has been mixed to completely incorporate most of the compound ingredients, omitting the active chemicals that constitute the cure system. Typically for silicone compounds this includes catalysts and color pigments. 

"Material Rework"

Minor adjustments made to the existing ingredient content levels of a compound recipe, while remaining within the tolerance limits specified in the recipe, which may enhance physical properties or processability performance, yet still maintain the original compound identity. 

Safety Hazardous Materials

While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.

AIA/NAS Aerospace Standards