3M™ Scotch-Weld™ High Temperature Void Filler EC-3439 Epoxy used for filling voids and honeycomb core. Cures to a rigid, solvent-resistant material in one hour at 250F (121C). The compound has thixotropic properties for ease of application. Cured material is flame retardant. Meets the flammability requirements of F.A.R. 25.853 (a).
3M™ Scotch-Weld™ Void Filling And Edge Sealing Compound EC-3524 B/A Two-part, flame-retardant epoxy. Can be used for void filling, edge sealing and as an abradable compound in aircraft engines. Cures to a strong, low-density material within 48 hours at 75 degrees F (24 degrees C). Meets the flammability requirements of F.A.R. 25.853 (a) and (b). Reinforces honeycomb. Can be used for bonding inserts.