FM®
490A core splice adhesive is a modified epoxy material supplied in sheet form that may be cured
in place by either free foaming or restrained foaming processes. FM®
490A may be processed at any
temperature ranging from 225°F to 350°F (107°C to 177°C). It is specifically designed to minimize
variation in cell structure induced by typical process variables such as heat-up rates and vacuum
conditions. Since FM®
490A core splice adhesive contains no metallic fillers, it is appropriate for
applications requiring radar transparency.
Typical applications for FM®
490A include honeycomb splicing, bonding of inserts or edge members
to core, and localized reinforcement of honeycomb core where increased shear strength is required.
Features and Benefits :
- Use temperature ranging from -67°F to 350°F (-55°C
to 177°C)
- Wide curing window: 225°F to 350°F (107°C to
177°C)
- Uniform cell structure: ambient to 10 in Hg (254 mm of
Hg) vacuum
- Non-asbestos, no metallic fillers
- Radar transparent
