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Momentive RTV157 (82.8-ml-Tube) GREY SILICONE SEALANT (82.8-ml-Tube)

58.75

In stock

Description

Introducing Momentive RTV157, a one-component high-strength silicone adhesive and sealant for aerospace sealing applications. Designed for high-temperature sealing, gasketing and joint protection, it provides durable flexibility and strong adhesion to aerospace substrates. Engineered for reliable curing and performance in demanding aircraft maintenance environments.

Product Features
OEM
Momentive
Brand
Momentive
OEM Part No.
MOSI01078
Colour
Shelf Life in Months
18
Shelf Life in Days
540
UN No
Class
PG
ECCN
EAR99
Country of Origin
United States
Commodity Code
32149000
.

Additional Product Information

Overview

Momentive RTV157 is trusted by aircraft engineers and MRO teams worldwide for high-strength sealing, gasketing, and electrical insulation across military and commercial aircraft. From urgent AOG situations to routine maintenance, its durable silicone formulation and fast tack-free time ensure aircraft safety, reliability, and minimal downtime. Meeting MIL-A-46106B, Boeing BAC5010, and Airbus Level P3 specifications, it provides consistent performance in the most demanding aerospace environments.

Key Technical Specs for Momentive RTV157

  • Type: One-component, high-strength silicone adhesive and sealant
  • Consistency: Grey paste
  • Volume / Pack Size: 82.8 ml (2.8 fl. oz.) tube
  • Cure Mechanism: Room-temperature cure on exposure to atmospheric moisture
  • Tack-Free Time: Approximately 45 minutes at 25°C (77°F)
  • Full Cure: Approximately 24 hours at 25°C (77°F)
  • Service Temperature Range: -59°C to +204°C (-75°F to +400°F), intermittent up to +260°C (+500°F)
  • Shore A Hardness (Cured): 28
  • Elongation at Break: 825°
  • Tensile Strength: 975 psi (6.72 MPa)
  • Peel Strength: 60 pli (10.5 N/mm)
  • Shelf Life: 2 years when stored below 27°C (80°F) in original sealed packaging

Approvals & Specifications

  • Military: MIL-A-46106B, Group III, Type I
  • Boeing: BAC5010
  • Airbus: Level P3
  • NSN: 8040-01-315-1131

Typical Aircraft MRO / AOG Applications

  • Fuel tank access door and duct sealing
  • Exhaust and high-temperature component sealing
  • Electrical insulation and wiring protection
  • On-wing or workshop maintenance in commercial and military aircraft
  • Rapid-response AOG repairs enabled by tack-free time and easy application

Compatibility & Safety Notes

  • Bonds metals, glass, ceramics, and many rigid plastics without primers
  • Not suitable for thicknesses greater than 6 mm (1/4 in)
  • Releases acetic acid during curing; ensure proper ventilation
  • Practical for on-wing AOG repairs due to paste consistency and quick tack-free time

Packaging & Procurement

  • 82.8 ml (2.8 fl. oz.) tube, ideal for single-job use
  • Available for immediate dispatch from Aerospheres
  • Easy to store in MRO or AOG kits without occupying excessive space

Why Momentive RTV157 is Chosen for AOG / MRO

  • Fast tack-free time (~45 minutes) for urgent repairs
  • High-temperature stability up to +204°C (+400°F)
  • Versatile for multiple applications: sealing, gasketing, electrical insulation
  • Portable and easy for ground crew to apply on-site

Practical Suggestions for Your Team (AOG Mindset)

  • Keep multiple tubes in AOG or rapid-response kits
  • Pre-stock spatulas, gloves, and application tools for immediate use
  • Verify substrate compatibility to avoid rework
  • Track batch numbers and application sites for compliance and audit purposes
  • Rotate stock to ensure sealants remain within shelf life

Manufacture / Aviation Spec Codes

  • MIL-A-46106B
  • Boeing: BAC5010
  • Airbus: Level P3
  • Lockheed Martin: Check specific aircraft AMM for compatibility

Alternative Names & Descriptions

  • RTV157-82.8ml
  • Momentive RTV157 Silicone Sealant
  • GE RTV157 High-Strength Silicone Adhesive
  • MIL-A-46106B Silicone Sealant
  • RTV157
  • RTV157:01139
  • RTV157GRAY
  • RTV-157-GREY-82-8ML

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