3M™ Scotch-Weld™ Structural Void Filling Compound EC-3505 B/A FR is a two-part, low-density, flame-retardant epoxy compound that can be stored, applied and cured at room temperature.
3M™ Scotch-Weld™ Structural Void Filling Compound EC-3505 B/A FR is a non-sag, non-brittle compound designed for void-filling, edge-sealing/close-out, corner reinforcement, local reinforcement for mechanical fixation and complex gap-filling in honeycomb sandwich structures. It cures to a strong, low-density material within 48 hours at 24°C (75°F) or 2 hour at 43°C (110°F). The thixotropic properties make application easy. It is sandable and machinable within 6 hours at 23°C (75°F) of mixing or 1 hour at 43°C (110°F). It is also paintable. The cured material meet flame resistance requirements of 14 CFR 25.853 (a) (d).
Adhesive Type | Epoxy |
Application Life | 60 min |
Applications | Edge Finishing, Edge and Void Filling |
Brands | Scotch-Weld™ |
Compressive Strength | 15 MPa (2200 psi) |
Container Size (Imperial) | 15 Gallon |
Cure Rate | 48 hr |
Cure Temperature | Room Temperature |
Density | 0.44 g/cm³ |
Factory ISO Certification | No ISO Certification information available |
Flame Retardant | FR |
Meets Specifications | 14 CFR-25.853(a)(d) |
Product Colour | Light Brown |
Product Form | Kit(set) |
Time to Handling Strength | 4 hr |
Work Life | 60 min @ Room Temperature |
Safety Data Sheets
Document Number: MSDS_2919157_CA_EN
(PDF)