Hi! Will and Tony,
Concerning curing of the Europa.
I notice that it is being suggested that a cure time of possibly two
hours was likely.
May I respectfully advise that if you have an aircraft that is glass
fibre reinforced with resins laid over polystyrene you need to very
slowly increase the heat soak or you will have the polystyrene expand
faster than the glass and burst through the construction making you a
very unhappy bunny ! Likewise the cooling down cycle needs similar
treatment.
Regards
Bob Harrison G-PTAG .
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of William
Daniell
Sent: 08 July 2016 14:34
Subject: Re: Europa-List: Curing of Flying Surfaces
Tony
I was originally daunted by this but it's actually easy. I bought some
1mx1m expanded polystyrene and built box/oven 1 x 1 x 2. this was
enough for my foam flying surfaces flaps, horizontal stab, ailerons.
I used ordinary fan heaters inside the oven and removed the standard
thermostat and replaced it with a thermostat from Aircraft spruce
calibrated to 40C i think.
I but a baffle in front of the of the fan to ensure that there was no
local concentration of heat.
I used a couple of meat thermomenters punched through the polystyrene to
monitor the temperature.
Once i worked it out it was a couple of hours to do the job.
Will
William Daniell
LONGPORT
+57 310 295 0744
On Fri, Jul 8, 2016 at 5:08 AM, tonyvaccarella <tony@weimagine.com.au>
wrote:
<tony@weimagine.com.au>
Hello all,
I'm the owner of a conventional tailwheel aircraft I purchased from the
USA. This project was started in 1999 and still being built :-)
Not that Im near the finished stage yet but while reading the Builders
Manual about finishing the aircraft it states
" The first thing that you need to do with your flying surfaces is port
cure them at a temperature between 40-50 deg C. This will improve their
strength and cook off any remaining volatiles and moisture withing the
epoxy system. "
Just wondering how builders have managed to do this. What equipment that
have used and how they have controlled the temperature. What is our
opinion about doing this on "old" wings that were completed in about
year 2000.
I look forward to your comments
Regards,
Tony Vaccarella
Sydney
Australia
--------
Tony Vaccarella
Mascot NSW 2020
Sydney Australia
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=457901#457901
pa-List" rel="noreferrer"
target="_blank">http://www.matronics.com/Navigator?Europa-List
FORUMS -
eferrer" target="_blank">http://forums.matronics.com
WIKI -
errer" target="_blank">http://wiki.matronics.com
b Site -
-Matt Dralle, List Admin.
rel="noreferrer"
target="_blank">http://www.matronics.com/contribution
|