3M™ Scotch-Weld™ Structural Adhesive Film AF 191
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Details
Highlights
- Allows for flexibility in design; durable in a wide range of service conditions, high performance from -67°F to 350°F (-55°C to 176°C)
- Adhesive can be cured from 275°F (135°C) up to 350°F (175°C)
- Helps increase life of bonded structures, especially at high temperatures; capable of 34,000 hours of exposure at 350°F (176°C)
- High shear strength
- High-fracture toughness and peel strength
- Available with lightweight conductive screen for lightning strike/composite surfacing
- Excellent long-term durability
Ready to Fly 3M™ Scotch-Weld™ Structural Adhesive Film AF 191 provides excellent performance with easy-to-use shop handling properties. These adhesive films are available in a variety of weights and carriers to meet a range of needs without imposing excess material costs. With high fracture toughness and peel strength, AF 191 provides a reliable, long-term bond suitable for composites, metals in solid panel and honeycomb sandwich fabrication. We also offer an unsupported version, which can be used for reticulation. It is also compatible with multiple substrates and primers. In addition, AF 191 exhibits excellent pre-bond humidity performance on composite substrates.
Specifications
| Adhesive Type | Epoxy |
| Applications | Bonding, Structural Bonding, Surfacing |
| Cure Rate | 1 hr |
| Curing Temperature (Celsius) | 177 ℃ |
| Curing Temperature (Fahrenheit) | 350 ℉ |
| Maximum Cure Conditions (Celsius) | 200 ℃ |
| Maximum Cure Conditions (Fahrenheit) | 400 ℉ |
| Maximum Operating Temperature (Celsius) | 175 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 350 ℉ |
| Minimum Cure Conditions (Celsius) | 135 ℃ |
| Minimum Cure Conditions (Fahrenheit) | 275 ℉ |
| Minimum Operating Temperature (Celsius) | -55 ℃ |
| Minimum Operating Temperature (Fahrenheit) | -67 ℉ |
| Nominal Adhesive Thickness (Imperial) | 13 mil |
| Nominal Adhesive Thickness (Metric) | 0.33 mm |
| Nominal Weight (Imperial) | 0.015 lb/ft², 0.03 lb/ft², 0.08 lb/ft² |
| Product Colour | Tan |
| Storage Environment | Freezer Storage |
| Substrates | Metal, Composite |
| Overall Length (Imperial) | 3 yd, 36 yd, 50 yd |
| Overall Length (Metric) | 2.7 m, 33 m, 45.7 m |
| Overall Width (Imperial) | 36 in, 48 in |
| Overall Width (Metric) | 0.9 m, 1.2 m |
Resources
Safety Data Sheets
Document Number: MSDS_1133073_GB_EN
(PDF)
