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In general, epoxy doesn't stick very well to phenolic.
Using glass-epoxy over a piece of phenolic to hold it in place after it is
bonded is fine, but never, never count on epoxy (or flox or micro) as a
primary bond for a piece of phenolic.
I did some experiments on this early on, and found that a quick rap with a
hammer would pop off a phenolic button glued with epoxy, so I started using
Hysol to bond in all my various phenolic pieces and hardpoints. The
phenolic would delaminate befor the Hysol glue joint would separate. (Then
I applied the required number of bid tapes over the top as instructed by
the plans, of course.)
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LML website: http://www.olsusa.com/Users/Mkaye/maillist.html
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