3M,Ñ¢ Scotch-Weld,Ñ¢ Structural Adhesive Film AF 191 is a thermosetting modified epoxy adhesive designed for high-strength bonding applications, including composites, metal-to-metal, and metal-to-honeycomb components. It exhibits excellent elevated temperature performance, with a recommended cure temperature of 350¬8F (177¬8C) and flexible cure cycles ranging from 275¬8F to 400¬8F. The adhesive film provides extremely high peel strength and durability, making it suitable for demanding environments, including cryogenic conditions. It is available in various forms, including unsupported and isolation versions, and can be used with conductive screens for lightning strike protection. The film has a low volatile content of less than 1% and is tan in color. Proper storage at 0¬8F (-18¬8C) is recommended to maximize shelf life, which is six months from the date of shipment.
Epoxy designed for bonding composites, metal-to-metal and metal to honeycomb components. High shear strength. Excellent elevated temperature performance. Extremely high peel strength. Excellent long-term durability. Flexible cure cycles (275-400°F).
| 3M Aerospace and Aircraft Maintenance Division | |
|---|---|
| Product Category | Adhesive Tapes |
| Product Number | AF 191 |
| Product Name | 3M™ Scotch-Weld™ Structural Adhesive Film |
| Type | Adhesive Tape; Industrial Tape; Structural Bonding |
| Color | Tan |
| Backing | Nylon Knit Scrim, Polyester Matte Scrim |
| Adhesive | Single; Epoxy |
