3M AF163-2OST
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- One Side Tack Layup
- Nonwoven Carrier Handling
- Selectable Bondline Construction
Product Description
3M Scotch-Weld Structural Adhesive Film AF 163-2 OST is a modified epoxy structural adhesive film with a matte nonwoven carrier and one-side-tack construction. The differentiated tack surfaces support layup control by providing higher tack on one side and a lower-tack surface on the carrier side. Available AF 163-2 OST weights provide selectable bondline thickness and color for prepared metal, composite, and honeycomb assemblies. The family supports low-pressure and vacuum cure processing. Substrate preparation, primer, pressure, and cure cycle define the complete bonding process.
Key features
- One Side Tack Construction: Differentiated tack surfaces support controlled film placement during layup.
- Nonwoven Carrier Support: The matte carrier improves handling before heat cure.
- Selectable Film Weights: Multiple areal weights provide options for bondline construction.
Applications
Structural bonding of prepared aerospace metals, composites, and honeycomb assemblies where one-side tack supports layup.
TDS, SDS & Technical Documents
Technical Specifications
Other Properties
General Properties
Additional Information
As-supplied / before-processing properties
Values are listed by AF 163-2 OST film weight to preserve configuration context.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Construction | One side tack with matte nonwoven carrier | - | OST designation |
| Nominal areal weight options | 0.030; 0.045; 0.060 | lb/ft2 | AF 163-2 OST variants |
| Color by weight | Green; green; red | - | Corresponding weight variants |
| Nominal thickness by weight | 5.5; 5.5; 9.5 | mil | Corresponding weight variants |
