Hi Chris,

I build a cellotex box (building insulation material) and then use a
small bar heater placed low in the box. The Control is achieved using
a commercial Kiln controller which achieves the required temperature
from a thermocouple placed somewhere appropriate in the heat box,
and then controls the temperature to +/- about 1 degree by turning
the bar heater on and off. You can program the cure time and it cuts
it off at the end. I use a separate USB temperature monitor to get
the date to support the cure. Done about 25 cures with this system
now and no problems.... I have done most cures at temperatures of
55C but also done some specialist cures as high as 80C....

I think a fan approach might struggle into a sealed box....

Craig

At 20:45 31 December 2018, wrote:
I am looking for some advise regarding "Post Curing of Epoxy
Composites".=
=20

The sailplane composite repairs have been completed regarding my
salvaged
A=
SW-27. The tail boom has a new 3'long intermediate section that
has been
s=
carfed and glassed into position. The fuselage pod had some radial
cracks
=
and the seat pan had some fractures that were all scarfed and
glassed. All
=
of the composite repairs were done at room temperature using OEM
materials
=
and MGS epoxy.=20

What temperature is recommended and for what duration should I
be using
for=
post curing the repaired areas. Is there a temperature ramp up
and ramp
do=
wn time that I need to work with. I plan to build a foam insulation
box
ar=
ound the repair areas and use a fan with a number of light bulbs to
regulat=
e the temperature.=20

Any advise is greatly appreciated,
Thanks,
Chris