ElastaPro makes aerospace silicones that meet customer callouts and military, civilian, and industry standards. These specification grade silicones are available as solid silicone sheet and uncured silicone compound. Solid silicone sheets arrive ready for die cutting and come in thicknesses ranging from .010” to .500” and widths up to 60”. Uncured silicone compound can be molded, extruded, or calendered.
ElastaPro manufactures aerospace silicones in accordance with our AS9100D and ISO 9001:2015 certified quality management system (QMS) at our Made in USA manufacturing facility in Santa Fe Springs, California. We are committed to meeting the highest quality standards and to supplying high-performance materials with the speed and value you deserve.
What are Aerospace Silicones?
Aerospace silicones are formulated to withstand the extreme conditions of aviation, aeronautics, and space. They differ from commercial grade and general purpose silicones in their enhanced properties such as high and low temperature resistance, durability, and low outgassing characteristics.
There are other silicone materials that can meet the rigors of extreme environments, but aerospace silicones also meet specifications from the U.S. military, civilian standards organizations, and/or original equipment manufacturers (OEMs). Some aerospace silicones are also military silicones, but not all military silicones are used in aerospace applications.
Types of Aerospace Silicones
ElastaPro makes aerospace silicones that meet the following specifications.
- A-A-55759
- A-A-59588
- AMS
- ASTM E595
- BMS
- DMS
- LMA
- MIL-DTL-25988
- MIL-PRF-81322
- MIL-SD-417
- PWA
- SAE
- WS14644
A-A-55759 Silicones
A-A-55759 silicones meet the requirements of alphanumeric classes within A-A-595750, a defense and aerospace specification from the U.S. General Services Administration (GSA) that is sometimes written as AA 59759, AA55759, or A A 55759. A-A-55759 has replaced ZZR765 (ZZ-R-75), which is still found on some part drawings.
ElastaPro makes the following types of A-A-55759 silicones.
- A-A-55759 1A
- A-A-55759 1B
- A-A-55759 3A
- A-A-55759 3B
A-A-59588 Silicones
A-A-59588 silicones meet the requirements of alphanumeric classes within A-A-59588, a defense and aerospace specification published by the U.S. General Services Administration (GSA) that is sometimes written as MIL SPEC AA-59588, AA 59588, AA59588, or A A 59588. This standard has replaced ZZR765 (ZZ-R-75), which is still found on some part drawings.
ElastaPro makes the following types of A-A-59588 silicones.
- A-A-59588 1A
- A-A-59588 1B
- A-A-59588 2A/2B
- A-A-59588 3A
- A-A-59588 3B
AMS Silicones
AMS silicones meet Aerospace Material Specifications (AMS) from SAE International. AMS standards are not military standards, but some military applications reference these civilian aerospace standards. In addition to material properties, AMS specifications cover manufacturing processes and testing procedures. They also include requirements for material selection and quality control.
ElastaPro makes the following types of AMS silicones.
- AMS3325
- AMS3326
- AMS3327
- AMS3332
- AMS3334
- AMS3335
- AMS3336
- AMS3337
- AMS 3338
- AMS3345
- AMS3348
- AMS3349
- AMS 3356
- AMS3357
- AMS3301
- AMS3302
- AMS3303
- AMS3304
- AMS3315
ASTM E595 Silicones
ASTM E595 silicones meet the low outgassing requirements in ASTM E595, which forms the basis of NASA’s low outgassing standard. These specification grade silicones have a total mass loss (TML) of ≤1.00% and a Collected Volatile Condensable Material (CVCM) of ≤0.10%. ElastaPro makes ASTM E595 silicones in 40, 50, 60, and 70 durometer (Shore A).
BMS Silicones
BMS silicones meet requirements in Boeing Material Specifications (BMS). The Boeing Company developed this set of standards to ensure that silicones and other materials meet specific performance and quality requirements for Boeing aircraft.
ElastaPro supplies BMS silicones that meet these specific standards.
- BMS 1-52
- BMS 1-53
- BMS 1-57
- BMS 1-62
- BMS 1-71
- BMS 1-72
- BMS 1-74
DMS Silicones
DMS silicones meet Douglas Material Specification (DMS) requirements, which are now managed by The Boeing Company. Douglas developed these requirements to achieve efficient and cost-effective aircraft production through integrated processes, supplier compliance, quality management, and supply chain management.
Contact ElastaPro for DMS silicones.
LMA Silicones
LMA silicones meet Lockheed Martin Aeronautics (LMA) requirements. Lockheed Martin Aeronautics is a division of Lockheed Martin Corporation that focuses on the design, development, production, and sustainment of military aircraft. LMA maintains detailed specifications that define the required properties, testing methods, and quality control procedures for each material used.
ElastaPro makes silicones that meet LMA-ME025 and LMA-STM requirements.
MIL-DTL-25988 Fluorosilicones (AMSR-25988)
MIL-DTL-25988 fluorosilicones meet the requirements of a U.S. military detail (DTL) specification for fluorosilicone (FVMQ) elastomers that resist fuel and oil and are used in aerospace applications. MIL-DTL-25988 classifies materials into types, classes and grades based on properties such as tensile strength, elongation, and hardness.
AMSR-25988, an SAE International specification, supercedes MIL-DTL-25988; however, MIL-DTL-25988 is still found on part drawings. AMSR-25988 and MIL-DTL-25988 both supercede the MILR-25988 standard, which is sometimes written as MIL-R-25988. Applications for MIL-DTL-25988 fluorosilicones include O-rings, molded parts, sheets, strips, and extruded shapes.
Contact ElastaPro for MIL-DTL-25988 fluorosilicones.
MIL-PRF-81322 Silicones
MIL-PRF-81322 silicones conform to a U.S. Department of Defense performance specification (PRF) for aircraft turbine engine lubricating oils. MIL-PRF-81322 does not focus specifically on silicone, but some lubricants contain silicone-based additives. Silicones contribute to a lubricant’s ability to withstand the high temperatures from turbine engines.
Contact ElastaPro for MIL-PRF-81322 silicones.
MIL-STD-417 Silicones
MIL-STD-417 silicones conform to a U.S. Department of Defense standard (STD) that defines a classification system and test standard for solid elastomeric materials (vulcanized rubber compounds). Material designations under this standard begin with the letter TA and are followed by a three-digit numeric identifier.
ElastaPro makes MIL-STD-417 silicones rangng from TA 405 to TA 810.
PWA Silicones
PWA silicones meet Pratt & Whitney requirements. Pratt Whitney, a division of RTX, designs and builds engines that are used aboard military and civilian aircraft. Compliant silicones must conform to AMS standards, military specifications, and other industry standards in addition to Pratt & Whitney’s internal requirements.
Contact ElastaPro for PWA silicones.
SAE Silicones
SAE silicones meet specific standards from SAE International. AMS silicones and AMSR-25988 silicones meet SAE standards, but there are other standards that affect silicones as well. For example, SAE-J20 covers silicone rubber that’s used in coolant hoses. TS147 covers silicone that used in loop-style clamp assemblies.
In addition to AMS and AMSR-25988 silicones, ElastaPro makes SAE-J20 and TS147 silicones.
WS14644 Silicones
WS14644 silicones are used in but not limited to aerospace applications. They meet the requirements of a U.S. Department of Navy specification that establishes requirements for vulcanized electrically conductive rubber compounds. WS14644 contains three types of materials and is sometimes listed on older part drawings.
ElastaPro makes Type III WS14644 silicones that are filled with carbon black and provide high conductivity.
Ask ElastaPro for Aerospace Silicones
ElastaPro makes specification grade aerospace silicones and supplies these materials as solid silicone sheet and uncured silicone compound. We provide a Certificate of Analysis (COA) with each batch for traceability. Contact us to request a quote, discuss your applications, or receive additional information about how we serve the aerospace industry.
