Specification Grade Silicones

BMS 1-57 Silicone

BMS 1-57  silicone from ElastaPro meets Boeing Material Specifications (BMS). Choose these specification grade silicone materials as solid silicone sheet or uncured silicone compound in the durometers, sizes, and colors that you need. ElastaPro is AS9100D and ISO 9001:2015 certified.

What is BMS 1-57?

BMS 1-57 is a high-performance silicone rubber specified by Boeing for use in aerospace seals and gaskets. It is a synthetic, durable material known for its flexibility across a wide temperature range, resistance to environmental factors, and suitability for sealing gaps and joints.
  • Material: Synthetic silicone rubber
  • Purpose: Primarily used for seals and gaskets in aircraft that require flexibility and durability in a wide temperature range.
  • Key properties:
    • High flexibility
    • Durable
    • Resistant to environmental factors
    • Provides reliable sealing against moisture, chemicals, and extreme temperatures 

BMS 1-57 Silicone Sheet and Compound from ElastaPro

BMS 1-52 silicone sheets are engineered to meet stringent standards for flexibility, durability, and high resistance to environmental factors. At ElastaPro Silicone Sheeting, these sheets arrive ready for die-cutting. They are between 0.010” and 0.500” thick and available in widths of up to 60”.

BMS 1-52 sets stringent standards for the chemical composition and physical properties of uncured silicone compounds. This ensures that materials meet the specific requirements for aerospace use. By adhering to BMS, manufacturers guarantee that the compounds contribute to producing high-quality and durable aviation components.

BMS 1-57 Silicone FAQs

What is BMS 1‑57 silicone?

BMS 1‑57 is a high‑performance silicone rubber defined by Boeing Material Specifications for aerospace seals and gaskets. It is engineered for flexibility, durability, and environmental resistance in demanding aircraft applications.

What is BMS 1‑57 silicone used for?

BMS 1‑57 silicone is primarily used for aerospace seals, gaskets, gap fillers, and joint sealing where long‑term flexibility and reliability are required across wide temperature ranges.

What forms does BMS 1‑57 silicone come in?

ElastaPro supplies BMS 1‑57 silicone as:

  • Solid silicone sheet
  • Uncured silicone compound
  • Custom sizes, durometers, and colors

These forms align with Boeing’s specification requirements.

What are the key properties of BMS 1‑57 silicone?

BMS 1‑57 silicone is known for:

  • High flexibility across a wide temperature range
  • Strong environmental resistance
  • Long‑term durability in aerospace conditions
  • Synthetic silicone rubber formulation

These characteristics make it suitable for mission‑critical aircraft components.

Is BMS 1‑57 silicone certified?

Yes. ElastaPro’s BMS 1‑57 silicone is produced under AS9100D and ISO 9001:2015 quality systems, ensuring aerospace‑grade consistency and traceability.

Does BMS 1‑57 silicone meet Boeing requirements?

Absolutely. BMS 1‑57 silicone is specifically formulated to meet Boeing Material Specifications, making it suitable for OEM and MRO aerospace applications.

What durometer range is available for BMS 1‑57 silicone?

BMS 1‑57 silicone sheets are available in hardness values around 45–55 Shore A, depending on grade and supplier. This range supports reliable sealing performance.

What industries use BMS 1‑57 silicone?

While designed for Boeing aircraft, BMS 1‑57 silicone is widely used across:

  • Commercial aviation
  • Defense and military aircraft
  • Aerospace MRO
  • High‑performance sealing applications

Its durability and environmental resistance make it suitable for multiple aerospace platforms.

Can BMS 1‑57 silicone be used for custom aerospace parts?

Yes. BMS 1‑57 silicone can be fabricated into custom extrusions, molded parts, seals, and gaskets, supporting both OEM and aftermarket aerospace needs.

Ask ElastaPro for BMS Silicones

Contact ElastaPro for aerospace silicones as solid sheet materials or uncured compound. All of our BMS silicones are Made in USA, produced under our AS9100D quality system, fully traceable from raw materials to finished product, and available with a full Certificate of Analysis (COA) for every batch. Our in-house production ensures consistent quality and responsive lead times.