Hi! Jeffrey
You won't be able to imitate my scheme without an insulation lined
covered trailer but for what it's worth I had two 2kw fan/convector
heaters with their own thermostats.
But I regularly monitored the enclosed area with a digital thermometer
by going into it. Seriously much better to start it early morning and
the temperature "climb" and "decent" need to be over long periods to
allow the polystyrene to normalize gradually. My trailer allowed me to
do all parts including the fuselage simultaneously, the wings and all
flying surfaces being cured fully assembled and adequately supported.
I find myself somewhat pleased you have reminded me why I built such an
expensive trailer !
IMHO don't just rely on thermostat control ...don't trust it take
regular readings from different locations.
Regards
Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Jeffrey J
Paris
Sent: 18 December 2008 00:22
Subject: Europa-List: A question about post curing?
Dear Listers,
A question about post curing our epoxy parts. Today we built ourselves
an "oven" for baking our parts at the appropriate 40-50 degree celsius
for post cure. We built a 16' X 4' X 4' enclosure out of foil claded
4X8 sheets of insulation foam. The box is backed up to a basement brick
fireplace (no open flames) in which I would like to place a suitable
heating element. I also have use of an attic fan to low air around the
cavity.
Has anybody attempted this before? And if so what did you use to heat
the space. I went to a website that helps you calculate the heating
requirements for 256 cubic feet of space @ 50 degrees celsius came to
about 8900 btu's, however, heat does build up and I want a consistent
heat over a period of hours therefore I will need a thermostat of sorts
I would guess.
Any advice out there? I'm not a thermo engineer just an individual
Europa builder who's looking for an inexpensive way to do the job.
Thank you for your time and consideration.
Cheers and Happy Holidays,
Sincerely,
Jeff and Peter Paris Kit# A012 Monowheel Classic
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