2-part, clear amber, general purpose epoxy adhesive which cures slowly at room temperature after mixing. It develops high strength and excellent moisture resistance. LOCTITE EA 3421 is a 2-part, clear amber, general purpose epoxy adhesive which cures slowly at room temperature after mixing. It develops high strength and excellent moisture resistance. The gap filling properties make this adhesive system suitable for rough or poorly fitting surfaces made from metal, ceramic, wood or rigid plastics. The long working life and medium viscosity make this adhesive system suitable for large surfaces and where adjustment time is needed after assembly. Applications include bonding aluminum window frames and GRP panels. High strength and excellent moisture resistance after curing General purpose Applications include bonding aluminum window frames and GRP panels Long working life Technical Information Fixture Time 240.0 min. Mix Ratio, by Volume 1 : 1 Mix Ratio, by Weight 100 : 90 Mixed Color, Mixed Yellow: Light Amber Resin Color, Resin White Viscosity, Brookfield ? RVT, Resin @ 25.0 C Spindle 6, speed 2.5 rpm 30000.0 ? 90000.0 mPa·s (cP) Viscosity, Brookfield ? RVT, Resin @ 25.0 C Spindle 6, speed 5 rpm 60000.0 ? 100000.0 mPa·s (cP) , 9000.0 ? 19000.0 mPa·s (cP) Hardener Color, Hardener Yellow: Amber Viscosity, Brookfield ? RVT, Hardener @ 25.0 C Spindle 6, speed 10 rpm 11000.0 ? 19000.0 mPa·s (cP