Wedekind Sleeve Source?

On Mon, 07 Mar 2016 17:52:54 -0800, kevinsoar wrote:

I went on their web site, but several glues. Any idea which one?

Disclaimer: the following is model aircraft buildig and general use
experience, not direct aviation use, so please bear that in mind. Also I
think the formulation may have changed a bit recently, since the
'standard' Araldite used to be yellowish when mixed and is now milky
white.

There are two common Araldite types.

- "Standard", which used to be known as '24 hour' Araldite comes in blue/
white coloured tubes, takes about 24 hours to fully cure at room temp,
and gives a really tough joint. It tends to soften if you heat it after
its cured. So much so, that if you know its going to be used at a higher
temp, you should let it cure at the expected use temp or a bit hotter.
This is the one I use for general engineering and anywhere I expect the
joint to be load bearing.

- "Rapid" comes in red/white tubes, is handlable after 30 mins and full
strength after 1-2 hours. I've never heated this after curing so have no
idea whether it heat softens because I normally use it for gluing wood
and plastic. Its sets hard rather than tough: the glue shatters if
overstressed. I only use it for low stress joints and/or for quick
repairs where speed of cure is more important than glue strength.

Bottom line: anywhere that you care about joint integrity, use Araldite
Standard in the blue/white tube set.


Also, is there any concern with changing temper on the aluminum push
rods when heating?

As others have said, if you heat Araldite epoxies hot enough for long
enough to affect the temper of metal its joining stuff, the epoxy bond
will be destroyed rather than softened. And, like them, I'd use a hobby-
style (900w) heat gun to soften an existing epoxy joint.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
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