EPIBOND 420 A/B US – BOEING BMS 5-107 CL 1 REV B –

EPIBOND 420 A / B is a pasty, two-component epoxy adhesive that hardens at room temperature. EPIBOND 420 A / B offers excellent mechanical performance, particularly in shearing and peeling. It is suitable for a wide variety of bonding applications on a large number of materials. EPIBOND 420 contains 125 µm microbeads to ensure a minimum thickness, uniform bonding in areas of high stress. EPIBOND 420 A / B replaces REDUX 410 NA and meets BMS 5-107 requirements.

Color: Blue-green / Viscosity: Semi-paste (Resin: 140,000 mPa.s - Hardener: 900 mPa.s) / Density: 1.05 (Resin: 1.1 - Hardener: 1) / Gel-time: 70 min (at 25°C) / Typical Cure Cycles : 7 days at 23°C or 90 min at 80°C / Compressive strength: 44.1MPa at 23°C and 3.3MPa at 82°C / Tensile strength: 35,9 MPa / Tensile modulus: 1.6 GPa / Elongation at break: 4.2% / Flexural strength: 57.9 MPa / Flexural modulus: 1.9 GPa / Tg: 61°C / Hardness: 70 ShD / Tensile lap shear strength : 31 MPa at 23°C ; 3.4 MPa at 82°C ; 2.1 MPa at 121°C / Meets BM 5-107 specification for bonding inserts.

EPIBOND 420 A / B is an adhesive intended for structural bonding. It comes in the form of a paste that hardens at room temperature and offers very high performance. The colors of the two components of the EPIBOND 420 A / B; blue for the hardener and yellow for the resin; allow quick verification of the mixture. Mixing ratio: 100/40.