Fiber Resin EY3804 GRAPHITE COMPOSITE REPAIR COMPOUND
MANUFACTURER
H.B. Fuller
DESCRIPTION
EY3804 A/B is a low viscosity, two-component epoxy system that offers low
temperature cure, high temperature strength, and excellent resistance to hot
water immersion. These properties make EY3804 an excellent choice for field
repair of composite components.
EY3804 may be considered as a permanent repair for service
temperatures 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 EY3804B
hardener.
POT LIFE
The pot life of EY3804 A/B is 40-50 minutes in a
166 gram mass.
CURE CYCLE
EY3804 was
designed as a room temperature curing epoxy to develop 300F strength with short
term aging. Cure can be greatly accelerated with moderate heat, as with heat
lamps or a field repair heat source. A heating time of three hours at 150F in
the 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 may
cause irritation to some people. Avoid contact with skin and use adequate
ventilation. Wash skin with soap and water. Flush eyes with water copiously and
get medical attention.
Use good personal hygiene. Avoid eye and skin
contact. Wash contaminated clothing before reuse. Store material in a
closed 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 shelf
life. 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, follow
label warnings even after container is emptied.
