Blot as much excess
epoxy from the wetted
carbon as possible.
Wrap the area again with electrical
tape until the epoxy cures.
After sanding the area smooth
it can be wrapped with carbon
cloth that is cut on a bias.
Remove the stabilizers and center section and carefully
use a Dremel tool to grind or sand the area to remove excess
or protruding CA from the joint area. Tape off the fuselage
with two layers of masking tape, at least one inch wide on
either side of the break.
With 360-grit sandpaper, carefully sand the paint from the
fuselage between the masking tapes. Using a Sharpie, mark
12 lines evenly spaced around the fuselage, across the break
and parallel with the fuselage.
Use your Dremel tool with a 1/2- to 5/8-inch diameter and
1/8-inch-wide grinding wheel to grind a shallow groove along
each of the lines. Cut 12 pieces of carbon tow the same
length as your grooves and using CST West System G-Flex
epoxy in each groove, affix each piece of carbon tow in
place. Blot the excess epoxy with a paper towel and tape the
area with electrical tape.
After the epoxy has cured, remove the electrical tape and
carefully sand the repaired area with 600-grit sandpaper to
remove any high spots.
To complete the repair, a single wrap of carbon cloth
should be cut and applied over the joint area with epoxy,
making sure that you blot up all excess epoxy. Finally, wrap
the joint area neatly with electrical tape and allow it to
After it has cured, remove the electrical tape. Sand
the area lightly with 600-grit sandpaper and then 1,000-
108 Model Aviation M AY 2014