3M AF325LS.59
Harmonization Code : 3506.10.00.00 | 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

Main features
- Integrated Composite Surfacing Layer
- Smooth Low Porosity Finish
- Configuration Specific Lightning Protection
Product Description
3M Scotch-Weld Composite Surfacing Film AF 325LS, 0.059 wt is a thermosetting epoxy surfacing film for composite aircraft structures. The preformed layer supports a smooth, low-porosity surface that can reduce finishing work before painting. AF 325LS constructions may incorporate a conductor for lightning-strike protection when the complete LS configuration is specified. The 0.059 wt designation identifies the intended commercial construction, while the conductor, color, liner, and complete part code remain essential selection details for layup and cure planning during aerospace composite manufacturing.
Key features
- Integrated Composite Surfacing Layer: The preformed thermoset film creates a controlled exterior layer during composite cure.
- Smooth Low Porosity Finish: The cured surface supports reduced preparation before painting.
- Configuration Specific Lightning Protection: LS constructions can integrate a conductor when the complete configuration is specified.
Applications
Composite aircraft surfacing and lightning-strike protection with the exact conductor-equipped LS construction.





















