epoxy joint

[Pete Cosky]

That would depend on the joint. 

 

On a tight fitting joint epoxy will yield a very strong joint,
especially if you use a slow setting type that can penetrate into the
wood before curing. 

 

If there are gaps then you would want to use milled glass or flocked
cotton which gives the resin something to cling to and will be stronger
than just resin. 

 

Micro balloons would be added as lightweight non-structural filler such
as filling surface imperfections or a wing fillet. 

 

Not that I am a composites expert by any means, but that is what I have
learned. If that is incorrect please let me know.

 

Pete

 

 

 

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of John Crozier
Sent: Saturday, January 15, 2005 10:35 AM
To: discussion nsrca
Subject: epoxy joint

 

Sometime in my crafting life, I have acquired the notion that adding
milled glass, micro-balloons, etc.,  to epoxy when making a good fitting
joint, only weakens the joint. (diminishes, or dilutes the bonding
strength of the epoxy).

In this case it would be composite horns to balsa.  No fillet is needed.

Anybody wanna jump in?

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