3M™ Scotch-Weld™ Structural Void Filling Compound EC-3505 B/A FR

Highlights:

Saves weight with the lightest pumpable/extrudable FR (Fire Retardant) void filler in the industry

Reduces labor cost and time with Pumpable/extrudable and non-sag compound that requires no hand-mixing

Cuts cycle time, as its sandable and machinable within 6 hours at 75°F after mixing

Stores, applies, and cures at room temperature for easy handling and reduced inventory costs

Reduces need for rework; tough when cured, allows for drilling without chipping

Meets key aerospace industry fire retardancy regulations

3M™ Scotch-Weld™ Structural Void Filling Compound EC-3505 B/A FR is a two-part, low-density, flame-retardant epoxy compound that is stored, applied and cured at room temperature for significant savings in handling and inventory costs. Its extrudable, pumpable and non-sag performance helps aircraft manufacturers eliminate steps through reduced touch and cycle times.

We formulated 3M™ Scotch Weld™ Structural Void Filling Compound EC 3505 B/A FR to be non sagging and non brittle. This helps make it an ideal solution for void filling, edge sealing/close out, corner reinforcement, local reinforcement for mechanical fixation and complex gap filling in honeycomb sandwich structures. EC 3505 B/A FR starts as a high viscosity, thixotropic paste for easy, controlled dispensing that won't drip, sag or migrate. The mix ratio is 2:1 and provides a 60 minute work life to allow plenty of time to adjust fit prior to setting. EC 3505 B/A FR provides a four hour time window to reach handling strength and becomes fully cured in 48 hours at room temperature.

3M ID: B40067616

Adhesive Type: Epoxy

Brands: Scotch-Weld™