Just for the guys who want to put their mixed epoxy on the freezer,
there is a couple of things to do... or to avoid.
First, find some small airtight boxes or bags of the size you need,
and fill them with your epoxy so that no air is trapped into the box after
closing. It's useless to freeze a partially filled box, unless you can
eliminate the air inside (vacum). Bags can always be emptied of their air
but I have yet to find the bags with are cheap, resistant enough, airtight
to water vapor and have a good closing system.
Secondly, before to open the box, wait until it's again at ambient
temperature. A bag will warm faster because it has more surface and it's
easier to mix the content.
Why to do this? In both cases it's to avoid that your epoxy traps
all the humidity of condensing water vapor. It's for the same reason that
you should't do your laminates if the relative humidity is too high. The
properties of the cured epoxy are affected by the water content of the mix
during the cure.
I won't use the same freezer for my food and my epoxy... And you can
probably find a used freezer for less than 30$. This one will also be
cheaper to replace when the hardener vapors will have corroded the metallic
parts...
Personally I think that in most cases the 'cons' overcompensate the
'pros' of using this technique.
Hope it helps...
Luc JOB Mat. sci. Eng. Swiss Federal Institute of Technology
'If nothing else works... change the standards'
1963 JODEL DR-1051 HB-EBM, wood, fabric, 2+2, <6 gph @ >125 KTAS...
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