Description

Additional Product Information
Momentive RTV157 is trusted by aircraft engineers and MRO teams worldwide for its high-strength sealing, gasketing and electrical insulation across both military and commercial aircraft. From AOG emergencies to routine maintenance, ground crew rely on its durable silicone formula and fast tack-free time to maintain aircraft safety and minimize downtime. Meeting MIL-A-46106B, Boeing BAC5010 and Airbus Level P3 specifications, it delivers consistent performance in the most demanding aerospace environments. When reliability, versatility and rapid-response capability matter most, aviation professionals turn to Momentive RTV157.
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: ~45 minutes at 25°C (77°F)
Full Cure: ~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 for Momentive RTV157

Military: MIL-A-46106B, Group III, Type I
Boeing: BAC5010
Airbus: Level P3
NSN: 8040-01-315-1131
Typical Aircraft MRO / AOG Applications for Momentive RTV157
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 due to tack-free time and easy application
Compatibility & Safety Notes for Momentive RTV157

Bonds metals, glass, ceramics, and many rigid plastics without primers
Not suitable for thickness >6 mm (1/4 in)
Releases acetic acid during curing; ensure ventilation
Practical for on-wing AOG repairs due to paste consistency and quick tack-free time
Packaging & Procurement for Momentive RTV157 (matched to the Aerospheres page and common market packs)
Supplied in 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 taking up 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) for Momentive RTV157
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 are within shelf life
Manufacture / Aviation Spec Codes for Momentive RTV157

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