REFLECTOR: Epoxy and Hardener

[Ronnie Brown]

Fred:

Here's an excerpt from a recent post by Andy Millen:

"Also, I had my EZ-84 hardener go bad.  The factory ships about 2 1/2
gallons with the kit.  It doesn't like light and it doesn't like to
breathe.  If you let it, the styrene will evaporate.  It will slowly go
from the green-yellow thin syrup to something that is as dark as
molasses and pours like it too.  When it does the epoxy cures brittle
and adheres poorly.  For that reason I only keep my resin in the warmer.
The hardener seems to last longer.

Just a thought or theory on the hardener.  The plastic bucket it came in
might have allowed the styrene to dissipate.  If I had it to do again I
might put it in an opaque container like a sealed paint can.  If it was
sealed tightly enough, I might even keep it in the refrigerator until I
needed it.  The epoxy and hardener aren't terribly expensive from the
factory.  What will kill you is the shipping.  I think it was $57 for
1/2 gallon of hardener to be delivered to my door.

End of Quote

----- Original Message ----- 
From: "Fred Vandeman" <fvandeman at comcast.net>
To: <reflector at tvbf.org>
Sent: Sunday, September 05, 2004 11:45 AM
Subject: REFLECTOR: Epoxy and Hardener


| I've been away from my XL project for about a year and need to update
| my resins.  I'm using alphaPoxy and EZ Poxy.   The EZ 84 hardener is
| thick and lumpy........I'm certainly assuming it is trash.   The DER
| 324 resin look fine but, don't know if I have to replace it also???
| If my sample test mix of the AlphyPoxy test OK, is it alright to use
| it???
|
| Fred Vandeman
|
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