REPAIR FUEL CELL INNER LINER
Apply a uniform coat of barrier cement
(E63.3) (4) over previous coat of repair
cement (2) to within no more than 1/4 inch of
repair area of O.D. Use a brush (5). Remove
any excess cement from unbuffed area. Use
clean cloth (E120) dampened with MEK
(E244). Wear gloves (E184.1). Allow barrier
to dry to touch.
Apply a second coat of barrier cement
(E63.3) (6) over first barrier coat (4) at 90º
to the application of first coat. Use a brush.
Allow second coat to air dry for approximately
Prepare repair cement (E63.2) as in steps
d and e.
Carefully apply a thin uniform coat of cement
mixture (7) over previous coats of barrier
cement to within no more than 1/8 inch
of O.D. of buffed edge area. Use a brush.
Smooth surface with MEK (E244) and
remove any excess cement from unbuffed
area. Use clean cloth (E120) dampened with
MEK (E244). Wear gloves (E184.1).
Do not flex fuel cell in repair area.
Allow finished repair to set for 1 hour before
moving fuel cell.
Allow finished repair to air cure for 24 hours
at room temperature of 70ºF (33ºC) minimum
Visually inspect repair for workmanship, no loose
edges, no voids, cement fully cured.
END OF TASK