Hi Rowland!
Indeed I came across the same hardener container issue when I received my
last two new "in-date" kits of Redux (*araldite*
420<https://www.google.ca/search?client=firefox-a&hs=B5o&rls=org.mozilla:en-US:official&q=araldite+420&spell=1&sa=X&ei=jcV7Ur-aKMH54APKxYCIDw&ved=0CCkQvwUoAA>here
in NA). Upon receipt, it was still blue, and I transferred the
hardener into clear glass bottles with screw tops. It's stayed blue ever
since. I have noted that the hardener is really nasty smelly stuff, so I'm
not surprised that some of that nastyness is lost through the plastic
containers over time :-)
Cheers,
Pete
A239
ps- I still recollect with affection and appreciation my visit to you and
others a couple of years ago. :-) I really need to get my parts into
proper formation! Hopefully you will soon!
On Thu, Nov 7, 2013 at 11:23 AM, Rowland Carson <rowlandcarson@gmail.com>wrote:
> >
>
> To add to (or further confuse!) the recent thread about shelf life of
> Redux, I notice that recent batches of Araldite 420 are supplied with the
> hardener in opaque balck plastic containers, rather than the former clear
> glass bottles. A while back, when I came to bond in my cockpit module, I
> found that one such bottle of hardener (not long since purchased, and well
> within date) had developed a "starved horse" look, and the liquid inside
> was not the usual blue colour but black. For the CM bond, I switched to
> using older (but still blue) hardener. Since then, I've run some tests on
> the black hardener (which produces a noticeably different-coloured mix from
> the blue) and it seems to have sufficiently good bond qualities - my tests
> on pieces of layup always parted in the Ampreg-bonded section rather than
> at the Redux-bonded line. However, I'm wondering if I am the only one who's
> come across this - or what the man from Ciba-Giegy would say about it.
>
> Just to be safe, when I last collected a pack of Redux from
> Kirkbymoorside, I decanted the hardener into a glass container with a good
> seal as soon I got home, and it's staying the right colour.
>
> in friendship
>
> Rowland
>
> | Rowland Carson ... that's Rowland with a 'w' ...
> | <rowlandcarson@gmail.com> http://www.rowlandcarson.org.uk
> | Skype, Twitter: rowland_carson Facebook: Rowland Carson
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>
>
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