Specification Grade Silicones

AMS3335 Silicone

AMS3335 silicone is an aerospace‑grade silicone rubber engineered for exceptional flexibility and durability in extreme low‑temperature environments. Defined by an AMS specification, this material maintains elasticity and sealing performance where standard silicones stiffen or fail. With a 45–55 Shore A durometer, AMS3335 offers a balance of softness, resilience, and cold‑weather reliability ideal for demanding aerospace and high‑performance applications.

ElastaPro manufactures AMS3335‑compliant silicone sheet and uncured compound, providing consistent quality for OEM and MRO requirements.

What Is AMS3335 Silicone?

AMS3335 is an Aerospace Material Specification covering silicone rubber designed for extreme low‑temperature service. The material is used in:

  • Solid silicone sheets
  • Strips and gaskets
  • Molded components
  • Extruded profiles
  • Uncured compound for custom processing

Its formulation ensures reliable sealing, flexibility, and mechanical stability in harsh cold‑weather environments.

Key Properties of AMS3335 Silicone

Material Characteristics

  • Material: Silicone rubber (solid)
  • Durometer: 45–55 Shore A (moderately soft, flexible)
  • Forms available: Sheet, strip, molded parts, extrusions, uncured compound
  • Performance focus: Extreme low‑temperature flexibility

Temperature Resistance

AMS3335 silicone is engineered specifically for very cold environments, maintaining elasticity where standard silicones lose flexibility.
This makes it ideal for aerospace and high‑altitude applications where temperature extremes are routine.

Environmental & Mechanical Performance

  • Excellent cold‑temperature flexibility
  • Durable under repeated thermal cycling
  • Maintains sealing integrity in harsh outdoor conditions
  • Resistant to weathering, ozone, and UV exposure (inherent to silicone elastomers)

AMS3335 Silicone Applications

AMS3335 silicone is widely used in industries where extreme cold performance is mission‑critical, including:

  • Aerospace:
    • Door and window seals
    • Engine‑adjacent components
    • Environmental control system gaskets
  • High‑performance industrial equipment
  • Cold‑storage and cryogenic‑adjacent systems
  • Outdoor sealing applications in sub‑zero climates

Its ability to remain flexible and durable at very low temperatures makes it a preferred choice for engineers designing for reliability in harsh environments.

Why Choose ElastaPro for AMS3335 Silicone?

ElastaPro manufactures AMS‑grade silicone sheet and uncured compound with tight property control and consistent batch‑to‑batch performance. Benefits include:

  • U.S. manufacturing
  • Fast lead times
  • Custom thicknesses and widths
  • Precision‑cured sheet or ready‑to‑process compound
  • Technical support from silicone materials specialists

Request a Quote or Technical Guidance

Whether you need AMS3335 silicone sheet or uncured compound for molding or extrusion, ElastaPro can support your application.

Contact us for material recommendations, pricing, or samples.