Do you need to do repairs that require high temperature strength and superior resistance to hot water immersion? H.B. Fuller EY3804-A/B graphite composite repair compound kit is a smart choice. It's a 2-component, low viscosity epoxy system that cures at a low temperature and offers great strength at high temperatures. It also has excellent hot water immersion resistance.
Use EY3804 to repair composite components out in the field and for effective permanent repair for use in temperatures up to 200 degrees Fahrenheit. It conforms to Boeing specification BMS 8-301, Class 2. We have EY3804 graphite composite repair compound available in a quart kit.
Mix Ratio: 100 parts by weight of EY3804A resin with 66 parts by weight of EY3804B hardener
Pot Life: 40-50 minutes in a 166-gram mass
Cure Cycle: room temperature curing epoxy; develops to 300 degrees Fahrenheit strength with short-term aging.
Cure Acceleration: use moderate heat from heat lamps or field repair heat source. Three hours at 150 degrees Fahrenheit in the bond line provides full curing.