Specification Grade Silicones

AMS Silicone Solid Sheet and Uncured Silicone

ElastaPro offers AMS silicone in solid sheets and uncured silicone compounds. These elastomers meet Aerospace Material Specifications (AMS) from SAE International and are made to strict quality control standards.

Aerospace Material Specifications

AMS, or Aerospace Material Specifications, are a set of standards developed by SAE International specifically for materials used in aerospace and defense applications. These standards ensure that materials meet precise criteria for composition, mechanical properties, and performance under various environmental conditions. AMS specifications cover a wide range of materials, including metals, alloys, composites, and plastics.

  • Purpose: AMS standards aim to ensure the reliability and safety of aerospace vehicles by specifying the characteristics of materials used in their construction.
  • Scope: They cover a broad range of materials, including stainless steel, aluminum, and other alloys, as well as composites and plastics.
  • Content: AMS specifications detail requirements for chemical composition, mechanical properties (like tensile strength and hardness), heat treatment, and other physical characteristics.
  • Examples: Specific AMS numbers might indicate the type of material (e.g., stainless steel), its intended use (e.g., corrosion-resistant), and its specific properties.

AMS specs are crucial for aerospace manufacturers because they provide a common language and a set of requirements for materials, ensuring consistency and reliability in the industry.

AMS Silicone Advantages

AMS silicone products are manufactured to deliver consistent quality and high reliability. They offer:

  • Resistance to extreme temperatures, from high heat to freezing conditions.
  • Durability against environmental factors such as UV exposure, ozone, and moisture.
  • Flexibility and resilience, reducing material fatigue over time.
  • Compliance with aerospace-grade specifications, ensuring industry-standard performance.

AMS Silicone Solid Sheet

AMS solid silicone sheeting is manufactured to meet strict aerospace standards and arrives ready for die-cutting. It is available in thicknesses ranging from .010” to .500” and in widths of up to 60”. This material is designed for applications requiring high heat resistance, flexibility, and long-term durability.

Manufacturers and engineers rely on AMS silicone sheets for their ability to maintain performance under extreme temperatures. The material resists aging, weathering, and compression sets, making it an excellent choice for seals, gaskets, and insulation components used in high-stress environments.

AMS Silicone Uncured Compound

AMS silicone uncured compound supports molding, extrusion, or calendering to create precision components that meet specific performance requirements. This silicone is delivered in an uncured state and is engineered for processing flexibility, ensuring it meets the exact needs of a given application.

AMS Silicones from ElastaPro

ElastaPro’s AMS specification grade silicone materials meet the following AMS specifications:

AMS Silicone Applications

AMS-compliant silicone is used in aerospace, industrial, military, and electrical applications where durability and heat resistance are essential.

Aerospace Applications

In aerospace, it is commonly found in door and window seals to prevent air leakage and protect against moisture and UV exposure. Firewall gaskets use it to shield components from extreme heat, while landing gear seals rely on its ability to withstand pressure changes and hydraulic fluids. It is also used in engine and exhaust system seals, where resistance to high temperatures and chemical exposure is critical.

Industrial Applications

For industrial equipment, AMS silicone is used in ovens and furnaces as a sealing material that can withstand prolonged high temperatures. In chemical processing, it serves as a protective barrier against aggressive chemicals. HVAC systems use it in ductwork and insulation to improve efficiency, while pumps and valves depend on it to maintain reliable sealing under demanding conditions.

Military and Defense

In military and defense applications, AMS silicone is used in vehicle and aircraft seals to provide protection against harsh environmental conditions, including extreme temperatures, pressure changes, and exposure to fuels and lubricants. It is also applied in weapon systems and communications equipment, where consistent performance is necessary for reliability in the field.

Electronics

Electrical insulation is another key use, as AMS silicone protects sensitive electronics from temperature fluctuations, moisture, and environmental exposure. It is found in wire and cable coatings, circuit board protection, and high-voltage insulation, ensuring stable operation in both commercial and defense-related applications.

Frequently Asked Questions (FAQ)

What is AMS silicone?

AMS silicone refers to silicone elastomers that meet Aerospace Material Specifications (AMS) for mechanical, thermal, and environmental performance. These materials are used in aircraft, spacecraft, and defense systems where reliability is critical.

What is the difference between AMS 3302, 3303, 3304, and 3305?

The primary difference is durometer (hardness).

  • AMS 3302 = soft
  • AMS 3303 = medium
  • AMS 3304 = firm
  • AMS 3305 = very firm Each grade is suited to different sealing loads and mechanical requirements.

Is AMS silicone the same as A‑A‑59588?

No. Both are aerospace‑related silicone specifications, but they define different property ranges and testing methods. Some materials may meet both specs, but they are not interchangeable by default.

What temperature range does AMS silicone support?

Most AMS silicone sheets operate from –60°C to +230°C, with high‑temperature grades reaching +260°C. This makes them suitable for engine compartments, ECS systems, and exterior aircraft surfaces.

Can AMS silicone be used with aviation fuels or hydraulic fluids?

Standard AMS silicone is not fuel‑resistant. For exposure to Jet‑A, JP‑8, Skydrol, or oils, use fluorosilicone (MIL‑DTL‑25988) instead.

What thicknesses are available?

ElastaPro offers AMS silicone sheets in a wide range of thicknesses, typically from 0.010 in to 0.500 in, depending on the grade. Custom thicknesses are available upon request.

Can AMS silicone be fabricated into custom gaskets?

Yes. ElastaPro fabricates custom gaskets using waterjet cutting, die cutting, bonding, and splicing. Upload your drawing to receive a quote.

Does AMS silicone provide electrical or thermal insulation?

Yes. Silicone elastomers offer excellent dielectric strength and thermal stability, making them suitable for avionics, sensors, and high‑temperature insulation.

Is AMS silicone suitable for exterior aircraft applications?

Yes. Silicone’s resistance to UV, ozone, and weathering makes it ideal for exterior panels, radomes, and access‑door seals.

High-Performance Silicone Starts Here

Feel free to reach out to us for AMS silicone solutions. Whether you need solid sheets for die-cutting or uncured compounds for custom processing, we have the right material for your needs. Contact us today for a quote or to discuss your project with our team.