Andy Draper described it to me as a matter of chemistry (Andy -
apologies if I've described this incorrectly). Apparently the curing is
a reaction involving hydrogen from the hardener. Water provides an
alternative hydrogen source, and hence affects the cure.
Regards,
Jeremy
Jeremy Davey
Europa XS monowheel 537M
-----Original Message-----
From: forum-owner@europaclub.org.uk
europa-builder@ntlworld.com
Subject: Re: Humidity and epoxy
> Dear Oracle On The Net,
> It is stated in the build manual that a temperature of 20-25 deg. C
and
> a relative humidity of up to 60% is required.
> Now I am curious as to the humidity part; does it have an effect on
the
> strength, the cure time, the adhesion? If the humidity is borderline,
> should one take steps to reduce it?
> Alex, XS kit #529
Just consider the humidity as adding water to your epoxy mix, too much
water
won't be good. (A bit like too much water in your cup of tea or even
your
beer!)
Cheers,
Mark.
________________________________
Mark Jackson - +44 (0)7050 645590
europa-builder@ntlworld.com
http://harley.pcl.ox.ac.uk/~mark/Europa
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