Loctite EA 9321

LOCTITE EA 9321 AERO (Hysol EA 9321) is a two-component thixotropic epoxy paste adhesive that exhibits toughness and retains strength at elevated temperatures. It cures at room temperature and yields durable bonds over a wide temperature range.

Application Properties

• A grey, B off white, mixed grey; viscosity (25 °C) A 290–710 Pa·s, B 20–80 Pa·s; mixed density 1.23 g/ml
• Mix ratio by weight A:B 100:50; volume measurement is not recommended for structural applications
• Pot life (450 g, 25 °C) 40 min; handling strength in 24 hours at 25 °C
• Do not mix more than 450 g at a time because of heat build-up

Performance (2024-T3 alclad aluminium, ASTM D1002)

• Lap shear, cured 7 days at 25 °C: 20.7 at −55 °C, 27.6 at 25 °C, 20.0 at 82 °C, 6.9 at 121 °C, 3.4 MPa at 204 °C
• Cured 1 hour at 82 °C: 24.1 MPa at 82 °C
• After 30 days salt spray 23.4 MPa; after 30 days at 49 °C and 100% RH 25.5 MPa
• Hardness 84 Shore D; Tg dry 110 °C, wet 88 °C; compressive strength 116.42 MPa

Storage

• Below 4 °C: A and B 1 year; below 25 °C: A 3 months, B 1 year; below 32 °C: A 1 month, B 1 year