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The spar is left to cure for at least five hours in a heated environment, but preferably overnight. Afterwards the tape and foam and Mylar are
removed to leave a finished surface that requires no further sanding.
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Rib Repair
The ribs attached to the back of the D cell on the Exxtacy are constructed of carbon fiber tubes surrounding a foam square. Any cracks or breaks
are repaired by first lightly sanding the carbon fiber layer on either side, to allow for adhesion of the epoxy resin. A tube of carbon fiber is slid over
the area, extending a few inches beyond the break, or crack.
If the rib is broken clean through, apply epoxy resin to both ends and then secure then together with tape. After the break is cured, you can slide a
tube of carbon fiber over the break.
