You must keep DC-66 uniformly
wet for at least 24 hours after you work on it order to complete
the chemical reactions for hardening and to develop the best properties—this
is the Curing Process.
Curing Procedure
First re-wet any exposed surfaces with a water spray or mist—particularly
in dry or hot weather.
Then cover the whole piece with a waterproof plastic sheet for
24 hours.
After curing, re-wet the piece before you continue working on
it or before you apply fresh DC-66.
After you finish curing the final layer, uncover the piece and
allow any excess water to dry out naturally in the air.
The piece will reach full strength after thorougly
drying at room temperature.