- 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)
- Excellent elevated temperature performance
- 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
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Adhesive Type
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Epoxy
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Capabilities
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Aircraft Maintenance & Production Efficiency
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Cure Rate
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1 Hour
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Cure Temperature
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350 Degree Fahrenheit
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Market Segment
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Structures
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Maximum Operating Temperature (Celsius)
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175 Degree Celsius
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Nominal Weight
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0.015 lb/ft², 0.03 lb/ft², 0.055 lb/ft², 0.08 lb/ft²
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Overall Length (Metric)
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2.7 m, 23 m, 33 m, 46 m
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Overall Width (Metric)
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1 m, 1.2 m, 457 mm
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Percent Volatile
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<1.5 Percent
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Product Colour
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Tan
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Product Key
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AF191K
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Shelf Life
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6 Month
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Storage Environment
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Freezer Storage
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- 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)
- Excellent elevated temperature performance
- 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
- Excellent elevated temperature performance
- Allows for streamlined production; flexible cure cycles, 275-400°F (135°C to 204°C)
- Excellent long-term durability
3M™ Scotch-Weld™ Structural Adhesive Film AF 191 is a thermosetting, modified epoxy designed for bonding composites, metal to metal and metal to honeycomb components where high strength and peel at 350°F (177°C) is required.
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.
