Specification Grade Silicones

LMA Aerospace Silicone Sheet & Compounds (LMA-ME025 & LMA-STM)

ElastaPro is an AS9100D and ISO 9001:2015 certified manufacturer of specification-grade silicone sheeting and uncured compounds. We support defense and aerospace supply chains with high-performance elastomeric materials manufactured to meet strict aerospace quality standards, including Lockheed Martin Aeronautics LMA-ME025 and LMA-STM requirements.

Because LMA specifications are proprietary, ElastaPro maintains the rigorous manufacturing controls, raw material traceability, and clean-room processing necessary to align with qualified supplier procedures.

Need LMA  Silicone Sheeting or Slit Rolls?

We supply continuous roll stock, pre-cut solid sheets, and custom uncured compounds with low minimum order quantities, optional pressure-sensitive adhesives (PSA), and rapid turnarounds.

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High-Performance Silicone for Critical Aerospace Applications

Aerospace and defense subcontracts demand materials capable of withstanding extreme environmental stressors while maintaining physical integrity. ElastaPro’s specification-grade silicone is engineered to provide superior sealing, thermal management, and environmental insulation for advanced defense systems.

Key Performance Characteristics:

  • Extreme Temperature Resistance: Maintains mechanical flexibility and sealing efficiency across an operational range of -80°F to +500°F (-62°C to +260°C).

  • Low Compression Set: Ensures critical seals, gaskets, and interfaces maintain their shape and sealing force during long-term exposure to mechanical stress.

  • Environmental and Fluid Resistance: Exceptional stability when exposed to ultraviolet (UV) light, ozone, moisture, severe weather, and specialized aerospace fluids.

  • Outgassing Control: Select formulations can be processed to satisfy strict aerospace outgassing requirements for vacuum and high-altitude environments.

Material Capabilities and Delivery Formats

To accommodate diverse manufacturing requirements, ElastaPro supplies LMA-compliant silicone in both cured, ready-to-die-cut sheeting and uncured compounds for custom molding or calendering operations.

Technical Specifications Matrix

Material Attribute Capability Range / Specification
Primary Compliance Formulated to meet Lockheed Martin LMA-ME025 & LMA-STM
Quality Certifications AS9100D Certified / ISO 9001:2015 Registered
Material Formats Fully Cured Solid Sheeting / Uncured Silicone Compounds
Durometer Range 30 to 70 Shore A (Standard and custom hardnesses)
Available Thicknesses Continuous rolls or sheets from 0.010″ up to 0.500″
Width Configurations Standard 36″ and 48″ widths (Custom slitting available)
Standard Colors Red/Orange, Black, White, Gray (Custom color-matching available)

Complete Traceability & AS9100D Compliance

Navigating defense procurement requires absolute transparency. At ElastaPro, every production run of LMA-grade silicone undergoes strict quality gate reviews to guarantee batch-to-batch consistency.

  • Full Lot Traceability: Complete raw material and production batch traceability documentation is maintained and available.

  • Certificates of Conformance: Standard C of C documentation provided with shipments to verify material adherence to requested commercial and defense criteria.

  • Advanced Testing: In-house laboratory validation ensures physical properties—including tensile strength, elongation, and durometer—conform strictly to target specification windows.

Frequently Asked Questions about LMA Silicones

What Lockheed Martin specifications does ElastaPro’s LMA silicone meet?

ElastaPro formulates LMA-grade silicone sheeting and uncured compounds to meet Lockheed Martin LMA-ME025 and LMA-STM aerospace specifications. Because these specifications are proprietary, ElastaPro maintains clean-room processing, strict manufacturing controls, and full lot traceability under an AS9100D and ISO 9001:2015 quality management system to satisfy defense flow-down requirements.

What physical forms, durometers, and sizes are available for LMA silicone?

LMA silicone is available as fully cured solid sheeting for die-cutting or as uncured silicone compounds for custom molding and calendering. Key parameters include:

  • Durometer: 30 to 70 Shore A (standard and custom hardnesses)

  • Thickness: Continuous rolls or sheets from 0.010″ to 0.500″

  • Widths: Standard 36″ and 48″ widths, with custom slitting available

  • Colors: Red/Orange, Black, White, Gray, plus custom color-matching

What performance properties make LMA silicone suitable for critical aerospace applications?

ElastaPro’s LMA silicone is engineered for high-reliability aerospace and defense sealing, thermal management, and environmental insulation. It provides:

  • Broad Temperature Stability: Operates continuously from -80°F to +500°F (-62°C to +260°C).

  • Low Compression Set: Maintains seal memory and sealing force under severe mechanical stress.

  • Environmental Resistance: Withstands UV light, ozone, moisture, severe weather, and specialized aerospace fluids.

  • Outgassing Controls: Select formulations can be processed to satisfy strict aerospace low-outgassing standards for vacuum and high-altitude environments.