REPAIR BLADE FAIRING FOAM FILLER
Prepare and use a mixture of foam filler (E172.1)
Foam ingredients give off toxic fumes.
Skin contact can cause irritation.
Work in a well-ventilated area. Wear
goggles and protective gloves. In case
of skin contact, wash immediately with
soap and water.
A total poured weight of 20 grams
(0.75 ounce) will fill a 2 inch hole at
the maximum blade thickness. The
foam will expand to 8 times its original
Prepare a mixture of foam filler (E172.1). Mix
equal parts by volume of resin PEW and
activator PEA in a polyethylene cup (E157).
Stir vigorously for 15 seconds maximum.
Use a wooden spatula (E24).
Working life of the mixture is about
Pour mixture into cutout (10). Allow it to
expand and overflow.
Let expanded foam harden for at least 30
minutes. When hard, cut off overflow (12)
slightly above blade surface. Use a hacksaw