[jcclark]

I was asked to relay this for your info:

After you pour some hardener out of the can,
add marbles back to raise the level,
displacing the air that normally is sealed inside.
It will last longer.

[302 Z28]

Now why didn't I think of that .

Vince

[Bee4Me]

Cool tip jc.
I used to cut open spray can's and save them when I was a kid, but,


I've LOST all my marbles.

Yeah, I know,but someone had to post it.

[oldred]

Lost all my marbles

[baddbob]

That's why I keep coming back to this site, always learning something new. Most of my materials get burned up fast enough that they don't go bad but for the products that do set for awhile this sure is an easy way to help save them. Thanks for the tip.

[Henry Highrise]

Good tip! I will give that a try.

[BondoKing]

Originally Posted by jcclark

I was asked to relay this for your info:

After you pour some hardener out of the can,
add marbles back to raise the level,
displacing the air that normally is sealed inside.
It will last longer.

Show off

I love this guy!!

BK

[jcclark]

I want to thank Bondoking for being my guinea pig,
I run my ideas by him first to see if I should post them.

[powderbill]

Have you actually confirmed that this helps storage stability over a long period of time? The reason that I'm a bit surprised by this post is that I was taught many years ago that glass jars were unsuitable for storing isocyanates because some glass would actually accelerate gellation. I'm not sure whether this was because of traces of alkalinity in the glass or the presence of traces of silanol groups on the glass surface. I can't personally confirm or deny this from personal experiments, it's just something I was told. Also, I have no idea whether the glass used in marbles is identical to the type of glass used in the alledged "problem" jars.

If you really want to safely increase storage of opened cans, I'd prefer to use your Mig or Tig inert gas to blanket the top of the container before sealing it.

Hey Barry, if you read this, do you have any experience pro or con along these lines? I'm somewhat reluctant to pass along cautions based on heresay, but at the same time I also believe in following the "better safe than sorry" philosophy.

[rrmccabe]

Originally Posted by powderbill

If you really want to safely increase storage of opened cans, I'd prefer to use your Mig or Tig inert gas to blanket the top of the container before sealing it.

D a m m......... And I am impatient when it comes to just hammering the lid down. Now I need to gas up my cans !

<sigh>

[AC/DC]

I believe I was told that when these containers are sealed at the factory, the oxygen is removed and replaced with nitrogen. If, again, if that is the case even if you fill the opened container with whatever there is still oxygen to cause a reaction albeit possibly slower, maybe.
Where is Barry when you need him?

[66GMC]

Originally Posted by powderbill

I was taught many years ago that glass jars were unsuitable for storing isocyanates because some glass would actually accelerate gellation.
...
Also, I have no idea whether the glass used in marbles is identical to the type of glass used in the alledged "problem" jars.

If glass is a suspect material, could you sub metal ball bearings?
Just a thought ... the displacement thing sounds like a good theory.

[Riverman]

There is a product, (inert gas in a can - nitrogen I think) to spray over the top before sealing a container just for this purpose. If I remember the name, I will post it. Not that spendy by the way.

[wreckedGTI]

Originally Posted by Riverman

There is a product, (inert gas in a can - nitrogen I think) to spray over the top before sealing a container just for this purpose. If I remember the name, I will post it. Not that spendy by the way.

Hmmm that sounds familiar, it's what I saw recently at some website, it's called bloxygen preservative and goes for about 10 bucks, sounds like an interesting product, albeit marbles are cheaper hehe.

http://autobodystore.net/Merchant2/m...egory_Code=PSH


Jorge.

[302 Z28]

After having a partial can of hardener go bad from lack of use, I now keep those activators and hardeners indoors in an air condition environment. That might keep them a little longer than leaving them in an non airconditioned garage in the heat of summer....I hope .

Vince