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Instant Mix Epoxy

Personal logo ochoin Supporting Member of TMP writes:

I still use 2 part epoxy to glue, for example, metal shields on.
Once glued on they NEVER fall off.
I actually just bought a new lot recently it lasts for several years.

I bought Selley's Araldite I have no idea if this is available elsewhere but it's a rock-solid product in OZ.


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Revision Log
25 May 2012page first published

9,835 hits since 25 May 2012
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Personal logo Editor in Chief Bill The Editor of TMP Fezian writes:

Or, The Devil is in the Details

I suppose I am a creature of habit. When I need two-part epoxy for a wargaming project - in this case, to attach rare-earth magnets to aircraft models - I go to Wal-Mart.

It seems like when I go to Wal-Mart, the brand names and descriptions of the products may change, but essentially the choice is binary: "regular" epoxy or "fast" epoxy, the difference being how long it takes the epoxy to harden once mixed.

However, I was unpleasantly surprised when I grabbed the "regular" two-part epoxy recently, only to see that the packaging now recommends this only for use with plastic. Hmmm... is this not the same epoxy I usually buy? So instead, I grabbed the other two-part epoxy, the "fast" one (which costs a little more).

Instant Mix epoxy on my workbench

Opening the blister pack, I found the contents were a bit different than usual: a dual-syringe filled with epoxy, and two long nozzles. I was disappointed as the quantity of epoxy seemed a lot less than before.

The directions were simple: Pull back on the plungers. Break off the end of the syringe (which exposes two openings). Push one of the nozzles onto the openings, and twist to secure it in place. Then depress the plungers to dispense the epoxy.

Used nozzle

It turns out that the nozzles have little baffles in them, which means the epoxy comes out the end already mixed. (Instead of you having to mix the two-part epoxy together yourself.)

So I started gluing my magnets to my aircraft models... but before I had hardly started, the epoxy was spongy and useless, already well on its way to hardening. What???

Hey, my epoxy is hardening too fast!

OK, time to read the packaging. Turns out I hadn't bought "fast" two-part epoxy. I'd bought Instant Mix epoxy, which sets in 40-60 seconds and is hard within five minutes!


Still got one more job left...

Not to say that this isn't a seriously cool product, if you need super-fast two-part epoxy. The nozzles are one-use-only, so with two nozzles you'll only do two projects for each package.

Meanwhile, do I have any epoxy around here somewhere to finish this project with...?