Hi! Dan
I'm no authority on the main content of your request for info but I'm
replying in haste to advise not to use a heat gun locally, the foam will
expand before the glass and pop it open. I would think the whole thing needs
a controlled heat soak whilst in a re-jigged position. Then a controlled
cooling over a period of time. I would suggest all filling needs to be done
after curing since the curing is to drive out any remaining chemical
activity
so there may be gasses to flow from under any filler.
At the temperatures you require the foam expands if it gets to melt you were
two hot and you should now be "pissed off"! You need to remember that the
foam is a great heat insulator.
All this very much IMHO !
regards
Bob Harrison G-PTAG Kit 337 Europa /Jabiru 3300
-----Original Message-----
Behalf Of djgeldermann
Subject: Fill and Bake, or Bake and Fill?
Hello all,
This is an add-on to the recent questions about applying filler to the
control surfaces. I would like to hear opinions on whether the filler
should be applied before or after oven curing?
I have also heard that it is relatively easy to straighten trailing edges
with heat and clamped straight edges, and that it's possible to put in, or
take out, some minor twist in the ailerons under heat. Is this best done
during the oven curing or with a heat gun localized on one area (I'm nervous
about melting the blue foam under the bid).
Thanks for any input.
Dan Geldermann
A-139
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