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Old January 12th 19, 09:54 PM posted to rec.aviation.soaring
Miroslaw Pitorak
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Posts: 2
Default Post Curing Composites

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



Just ask glider manufacturer - this is the best source of such information.
They should tell you what temperature and for how long have to be kept and
very likely heat up and cooling down procedure.
I can dig out such data for PW-6U (supplied by ZS Jezow when we did front
wheel repair) but they my not be relevant for your glider/epoxy used.

Regards,
Mirek P.