3M™ Scotch-Weld™ Core Splice Adhesive EC-3500-B is the base component of a gray, two-part, modified epoxy used for filling mismatched areas and honeycomb core.
3M™ Scotch-Weld™ Core Splice Adhesive EC-3500 B/A is a two-part core splicing material designed for filling mismatch areas and reinforcing honeycomb core. It has high performance over a temperature range of -55°C to 177°C / -67°F to 350°F. It is low density with a long worklife, and has low volatile loss during cure. 3M™ Scotch-Weld™ Core Splice Adhesive EC-3500-B is the base component, to be matched with the accelerator component which is sold separately.