3M Aerospace AC-770 B-2 Brown BMS 5-142G Type II, Class B-2 Fuel Tank & Fuselage Sealant – Pint Kit
Product Overview
3M Aerospace AC-770 B-2 Brown BMS 5-142G Type II, Class B-2 Fuel Tank & Fuselage Sealant is a high-performance sealant designed for use in demanding aerospace applications. It is a two-part, polysulfide-based sealant that offers excellent resistance to fuels, oils, and solvents. It is also highly resistant to weathering and UV radiation.
Features and Benefits
- Excellent resistance to fuels, oils, and solvents
- Highly resistant to weathering and UV radiation
- Meets BMS 5-142G Type II, Class B-2 specifications
- Available in a pint kit
Applications
3M Aerospace AC-770 B-2 Brown BMS 5-142G Type II, Class B-2 Fuel Tank & Fuselage Sealant is ideal for use in a variety of aerospace applications, including:
- Fuel tanks
- Fuselages
- Wing skins
- Control surfaces
Instructions for Use
1. Surface preparation: Clean and dry the surfaces to be bonded.
2. Mixing: Mix the two parts of the sealant thoroughly according to the manufacturer’s instructions.
3. Application: Apply the sealant to the prepared surfaces.
4. Cure time: Allow the sealant to cure for the specified time before putting it into service.
Storage and Handling
Store the sealant in a cool, dry place. Keep the container closed when not in use.
Safety Precautions
Wear appropriate safety gear when handling the sealant. Avoid contact with skin and eyes. In case of contact, flush with water and seek medical attention.
Technical Data
| Property | Value |
|—|—|
| Appearance | Brown paste |
| Viscosity | 5,000-10,000 mPa·s |
| Density | 1.5 g/cm³ |
| Tensile strength | 2,000 psi |
| Elongation at break | 100% |
| Shore A hardness | 70 |
| Service temperature range | -65°F to 350°F (-54°C to 177°C) |
Ordering Information
| Product Code | Description |
|—|—|
| AC-770-B2-PK | 3M Aerospace AC-770 B-2 Brown BMS 5-142G Type II, Class B-2 Fuel Tank & Fuselage Sealant – Pint Kit |
Contact Us
For more information about 3M Aerospace AC-770 B-2 Brown BMS 5-142G Type II, Class B-2 Fuel Tank & Fuselage Sealant, please contact your local 3M representative or visit our website at www.3m.com/aerospace.
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