Fiber Resin EY-3804 (GAL)
Fiber Resin EY3804GRAPHITE COMPOSITE REPAIR COMPOUND
MANUFACTURER
H.B. Fuller
DESCRIPTION
EY3804 A/B is a low viscosity, two-component epoxy system that offers lowtemperature cure, high temperature strength, and excellent resistance to hotwater immersion. These properties make EY3804 an excellent choice for fieldrepair of composite components.
EY3804 may be considered as a permanent repair for servicetemperatures to 200F. It is also qualified to Boeing specification BMS 8-301J,Class 2.
SPECIFICATION
BMS8-301 CI2
MIX RATIO
Mix 100 parts by weight of EY3804A Resin with 66 parts by weight of EY3804Bhardener.
POT LIFE
The pot life of EY3804 A/B is 40-50 minutes in a166 gram mass.
CURE CYCLE
EY3804 wasdesigned as a room temperature curing epoxy to develop 300F strength with shortterm aging. Cure can be greatly accelerated with moderate heat, as with heatlamps or a field repair heat source. A heating time of three hours at 150F inthe bond line will provide a full cure.
PHYSICAL PROPERTIES
STORAGE
Part A | <40F = 6 months | >40-80F = 3 months |
Part B | <40F = 12 months | >40-80F = 12 months |
SAFETY AND HANDLING
As with all resin systems, liquid and vapor maycause irritation to some people. Avoid contact with skin and use adequateventilation. Wash skin with soap and water. Flush eyes with water copiously andget medical attention.
Use good personal hygiene. Avoid eye and skincontact. Wash contaminated clothing before reuse. Store material in aclosed container in a cool, dry place.
Since emptied containers retain product residue,follow label warnings even after container is emptied.
Storage in areas above 80 deg. F may reduce shelflife. Consult Material Safety Data Sheet for further information.
CAUTION
Part A: May cause eye and skin irritation. Potential skin sensitizer.
Part B: May cause burns. Since emptied containers retain product residue, followlabel warnings even after container is emptied.
