Epoxy vs CA

[Susan Kline]

Glen said:   
>     Just one more little aside.  Talking to the folks in the hobby shop 
>     revealed some interesting opinions.  They said that model builders 
>     coming to their store preferred epoxy over CA.  I asked why.  They 
>     said that CA glue dissipates out of the wood glued joints, eventually 
>     nullifying the bond.  Epoxy remains permanently.  Model airplane 
>     builders say that they find CA joints begin coming apart after about 1 
>     and 1/2 years but epoxy joints never break at the joint again.  They 
>     say they use CA glue for those on the field emergency repairs but 
>     prefer epoxy during building times.
>     
>     Have any of you that use CA glue for repairs noticed these repairs 
>     coming apart at a later date?
>     
>     Thanks,
>     
>     Glen
>     
>     ---------------------------------------------------------------

Dear Glen, list --

I've heard the same thing about CA glue. I've never noticed any 
joints coming apart, but when one is gluing (for instance) action 
parts together, which hopefully will be in use for decades, this 
problem is certainly something to consider.

All this makes me glad that my "glue trick" using CA and white glue 
together depends on the white glue for permanence. Perhaps (I HOPE) 
it led no one astray. In the five + years I've used it I've had no 
instances of later failures brought to my attention, anyway. 

I believe Baldwin's original instructions for Corfam replacement 
involved using CA glue alone to hold on the Ecsaine, and they 
included a bottle of it with the repair kit. Has anyone used it 
alone for that purpose, and found that later the Ecsaine was 
starting to come back off? The model people, presumably, are 
gluing wood to wood joints, rather than porous flexible material. 

I have a Corfam job coming up, and plan to use Titebond for most 
of it, with Titebond and CA glue together for the last seam at the 
top of the butt leather, ala Steve Brady and Rob Kiddell. 

Yours,

Susan
Susan Kline
P.O. Box 1651
Philomath, OR 97370
skline@proaxis.com		

"Time will end all my troubles, but I don't always
approve of Time's methods."
		-- Ashleigh Brilliant