I support Steve Hagar
According to Peter Austin, classic #198, in his email 24/9/04, with Subject:
"Europa-List: Araldite exp date"
Peter's email said he spoke at some length to one of the head chemists in a
major company in this country (UK?) asking specifically about expiry dates
and their meaning with the reply "as they are basically two inert substances
until mixed and if stored correctly in their containers there is not a
problem as the exp date is for company records and is deleted from their
records at the said date. Meaning should you have a batch that is faulty or
fails on you prior to the exp date they will respond."
I have tested like specimens made in syringes for insulin injecting and
found little deterioration in breading strength and recently made a test
piece of A420 purchased with my kit in 1997. I bonded two pieces of
aluminium strip about 1" square at 90 degrees, warmed to about 80 deg C for
4 hrs and could not break it in shear while holding one arm in a vice and
pulling upward with my hand(s) at about 8-9 inches from the the corner.
I concluded it would be suitable to join my fuselage halves when I bond the
top on soon.
JR (Bob) Gowing UK Kit 327 in Oz
----- Original Message -----
From: "Steve Hagar" <hagargs@earthlink.net>
Subject: Re: Europa-List: Ampreg 20 resin,
>
>
> Depending on how your material has been stored it may be very well
> acceptable even though it is out of date. Make a lap shear test coupon
out
> of fiberglass layups of the same thickness or strength you are going to
use
> the resin on the aircraft and do a pull test. If the fiberglass breaks
> before the bond you can reasonably be assured that your adhesive is still
> suitable.
>
>
> Steve Hagar
> hagargs@earthlink.net
>
>
> > [Original Message]
> > From: Graham Pocock <graham@pocock56.fsnet.co.uk>
> > To: <europa-list@matronics.com>
> > Date: 12/30/2005 10:38:10 AM
> > Subject: Re: Europa-List: Ampreg 20 resin,
> >
> <graham@pocock56.fsnet.co.uk>
> >
> > So has mine! Not meaning to sound naive but why did Europa sell us so
> much
> > in one go? I wouldn't be surprised to find that many of us have binned
a
> > lot of the resin and Redux that was supplied with the kit. We can't all
> > build 'em in 14 months.
> >
> > I got some more Ampreg 20 ( we cannot use the new 22) in November from
> > Marineware Ltd Southampton. Call Tim on 023 8033 0208 He only had the
> slow
> > hardener unfortunatly. Cost 80.07 inc post and vat. I did get a trade
> price
> > though. This was for a 3.75kg pack. IN DATE. If you find some Very
Cheap
> > then it's out of date stuff for boatbuilders.
> >
> > Also try www.heronyachtservices.co.uk
> >
> > Graham Pocock
> > Kit 535
> >
> > ----- Original Message -----
> > From: "Paul Sweeting" <europa@percyville.plus.com>
> > To: <europa-list@matronics.com>
> > Subject: Europa-List: Ampreg 20 resin,
> >
> >
> > <europa@percyville.plus.com>
> > >
> > > I wish to purchase some new resin as mine has all expired.
> > >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
> --
>
>
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