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kheindl(at)msn.com
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 Posted: Sat Sep 03, 2011 4:39 pm Post subject: [SUSPECTED SPAM]RE: Best way to store araldite 420 after op |
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I am still using Araldite 420 that is 10 years old and still as good as new. It has been open all this time, but with a lid on of course. The Araldite itself crystallized once or twice, but yu simply stand the can in very hot water for a while and give it a good stir. The hardener never changed its state.This question seems to come up regularly every few months.
| Quote: | Subject: [SUSPECTED SPAM]RE: Best way to store araldite 420 after opening the cam
From: wdaniell(at)etb.net.co
To: europa-list(at)matronics.com
Date: Sat, 3 Sep 2011 18:20:59 -0500
--> Europa-List message posted by: "William Daniell" <wdaniell(at)etb.net.co>
Picking up on the deterioration of the hardner - do you have data on that?
How many months?
Does anybody have a realistic idea how long unopened 420 is good for?
Stored at over 70f
Will
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asarangan(at)gmail.com
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| Posted: Sat Sep 03, 2011 4:57 pm Post subject: [SUSPECTED SPAM]RE: Best way to store araldite 420 after op |
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My Aeroepoxy is over 10 years old. The opened can of hardener does
change color, to wine red, and eventually to a blackish red. It is a
bit disturbing to see this color on laminations, but the strength
appears to be good as new. The sealed cans (which also sat for 10
years) also show a slight red coloration, but not nearly as much. I
think a vacuum sealing method for storing these epoxies would be a
useful addition.
I saved opening the araldite 420 until bonding the cockpit module, and
for all other jobs I've been using the 50ml version of epibond 420.
On Sat, Sep 3, 2011 at 8:36 PM, Karl Heindl <kheindl(at)msn.com> wrote:
| Quote: | I am still using Araldite 420 that is 10 years old and still as good as new.
It has been open all this time, but with a lid on of course. The Araldite
itself crystallized once or twice, but yu simply stand the can in very hot
water for a while and give it a good stir. The hardener never changed its
state.
This question seems to come up regularly every few months.
> Subject: [SUSPECTED SPAM]RE: Best way to store araldite 420
> after opening the cam
> From: wdaniell(at)etb.net.co
> To: europa-list(at)matronics.com
> Date: Sat, 3 Sep 2011 18:20:59 -0500
>
>
>
> Picking up on the deterioration of the hardner - do you have data on that?
> How many months?
>
> Does anybody have a realistic idea how long unopened 420 is good for?
> Stored at over 70f
>
> Will
&===========
>
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