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Repeat steps i and j until all cutout pieces of fiberglass cloth have been applied and saturated with resin and
the repair patch takes on a cone shape.
Install repair patch on damaged area.
Apply a thin layer of mixed resin on prepared area.
Center film with new patch on it over repair area, aligning patch as necessary.
Smooth and work the patch into place using finger pressure and putty knife.
Holding patch in place, position a backing plate over film and patch area, securing in place with a block
Lower temperatures raise resin cure time up to 24 hours. After 24 hours,
resin should be fully cured.
If repair area temperature is maintained above 60°F (13°C) and 3 to 4 hours have elapsed, remove
Test repaired area by gently pressing into it with a sharp object for hardness, indicating proper cure.
If surface of the patch is rubbery, the area is not completely cured and requires the area
temperature to be raised (not to exceed 80°F or 23°C) to finish curing with the
backing plate left off.
Inspect the cure to ensure the bond between the patch and the repair area for raised or cloudy areas, incorrect
alignment, voids or evidence of poorly bonded areas.
If multiple defects are detected, remove the patch and repeat patching process.
If patch is determined to be good, sand the patch with coarse then medium grade sandpaper on repair area
until smooth being careful not to sand patch edges excessively.
Paint the sanded area to match surrounding structure as necessary.
END OF WORK PACKAGE