DOWSIL 3145/GREY (90-ml-Tube) - USA Only Clearance

Additional Product Information

The DOWSIL 3145/GREY is a trusted one-part RTV silicone adhesive and sealant used by aircraft engineers, ground crew and MRO teams across the aviation industry from advanced military aircraft to commercial passenger jets carrying millions of passengers each year. It delivers high-strength, non-sag performance with excellent thermal stability (-50°C to +200°C / -58°F to 392°F) and dielectric properties, making it ideal for sealing, bonding and protecting critical components. Its ready-to-use formulation and room-temperature cure allow MRO teams to perform rapid, reliable repairs, minimizing AOG downtime. That’s why airlines and maintenance crews stock DOWSIL 3145 as a must-have consumable for both routine maintenance and urgent aircraft repairs.

Key Technical Specs for DOWSIL 3145/GREY

• Type: One-part RTV (Room Temperature Vulcanizing) silicone adhesive/sealant
• Tube Size: 90 mL (3 oz)
• Color: Gray
• Viscosity: Non-sag / non-flowing
• Cure Time: ~48 hours at 24°C (75°F); faster with heat
• Tensile Strength: ~1,035 psi (7.13 MPa)
• Elongation: ~670%
• Shore Hardness: 51A
• Dielectric Strength: 500 V/mil
• Service Temperature: -50°C to +200°C (-58°F to 392°F)
• Typical Uses: Sealing panels, housings and modules; bonding electrical leads; providing mechanical stability; vibration damping.

Approvals & Specifications for DOWSIL 3145/GREY

• Military / Aerospace Standard: MIL-A-46146 Rev. B, Amend. 3, Group III, Type I
• OEM Approvals: No universal Boeing, Airbus, or Lockheed Martin spec code is publicly assigned; use requires validation via SRM or OEM-approved repair documentation.
• Compliance: Aerospace declarable substance list (AD-DSL) compatible

Typical Aircraft MRO / AOG Applications for DOWSIL 3145/GREY

• Sealing avionics housings, modules, panels and electrical connectors
• Bonding small structural or electrical components where flexibility and thermal resistance are required
• Rapid repairs in AOG situations due to ready-to-use, non-flowing formulation
• Reduces downtime and ensures aircraft can return to service quickly

Compatibility & Safety Notes for DOWSIL 3145/GREY

• Substrate Compatibility: Metals, plastics, composites and painted/primed surfaces
• Primer: Not generally required; can use adhesion promoters if recommended in SRM
• Safety: Read SDS for Part A; avoid skin/eye contact, use PPE, ensure ventilation. Non-flammable at room temperature, making it practical for line maintenance and AOG repairs.

Packaging & Procurement for DOWSIL 3145/GREY (matched to the Aerospheres page and common market packs)

• Aerospheres Offering: 90 mL (3 oz) gray tube, single kit, shelf-life noted on packaging (typically 12 months)
• Easy to store in MRO or airline stores: small volume ideal for quick repairs without wasting material
• Procurement codes: Use Aerospheres P/N or supplier catalog numbers for ordering; lot and expiry tracking recommended

Why DOWSIL 3145/GREY is Chosen for AOG / MRO

• Ready-to-use RTV formulation eliminates mixing and prep delays
• Non-sag consistency enables precise application in line or AOG conditions
• Wide thermal range and dielectric properties make it reliable in harsh operational environments
• Small tube format ensures fast, controlled use without excess waste

Practical Suggestions for Your Team (AOG mindset) for DOWSIL 3145/GREY

• Keep at least one tube per shift or AOG kit for immediate use
• Maintain SDS/TDS in accessible digital or printed formats
• Use FIFO rotation to avoid expired product
• Train ground crew and engineers in proper application for critical bonding/sealing points

Manufacture / Aviation Spec Codes for DOWSIL 3145/GREY

• Manufacturer: Dow (DOWSIL brand)
• Product ID: DOWSIL 3145 RTV Silicone Adhesive Grey
• MIL Standard: MIL-A-46146 Rev. B, Group III, Type I
• OEM Codes: None universal; check SRM or OEM-approved repair document for aircraft-specific use
• Export Classification: EAR99

Alternative Names & Descriptions for DOWSIL 3145/GREY

• DOWSIL 3145
• RTV 3145 Silicone Adhesive/Sealant
• DOW 3145 Gray Sealant
• 3145 Gray RTV
• DOWSIL 3145 RTV Gray Tube
• RTV 3145 90ML TU:71984
• RTV3145GRAY:71984
• RTV3145GRAY-310GR:71984