John,
All my Stage 1 components have this to one extent or other. Indeed, at the
time we went into it in great depth with the factory and SP Systems (who
make the resin). Apparently it is a result of contaminants emerging from the
resin and reacting with water out of the atmosphere (which is exacerbated by
slow hardener being used and tallies with your weather report) and will need
to be cleaned up prior to finishing. It is not of structural significance.
Having said it is not structurally significant, it is worth taking
precautions for the sake of your health when handling these (and all)
layups. I generally wear latex gloves when handling cured layups, or wash my
hands promptly afterwards. I do not want to acquire an allergy for the sake
of a few hundred disposable gloves and a little care.
Regards,
Jeremy
Jeremy Davey
Europa XS Monowheel 537M G-EZZA
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of
TELEDYNMCS@aol.com
Subject: Europa-List: Sticky pre-skinned surfaces
Greetings all,
I've noticed in the past couple of weeks that my factory pre-skinned
ailerons, stab, rudder, antiservo tabs and flaps have become sticky to the
touch. We've been getting a fair amount of rain of late and the relative
humidity has been fairly high (60%-70%) for several weeks. Is this something
to be concerned about? Anybody know what is causing the stickiness? The
parts
have been stored in a temperature controlled environment going no lower than
about 55F and no higher than 75F. Handling them for fitting flaps, ailerons,
stab, etc., has resulted in fingerprints showing up on the surfaces. What's
a
good way to clean them up before finish?
Regards,
John Lawton
Dunlap, TN
A-245
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