Bridge Pin/Epoxy Question

[Barrie Heaton]

In article <90.5932c6a.2676d332@aol.com>, ETomlinCF3@AOL.COM writes
>Don't just use maple.  Use pinblock material for your experiment.  Solid wood
>reacts differently than does cross grained, quarter sawn, Maple.  =)  I think
>you will have different results and find a place for such repairs in your
>arsenal.
>Ed Tomlinson

The experiment is irrelevant for the application, tensile strength is 
not that important for pin bridge repair it is compression strength 
which epoxy is better than CA. However, CA has better capillary 
quality's  if applied with the pin in, but if the pin is removed and the 
hole filled with glue and repined. Epoxy is better than CA because of 
it's compression strength.

Simple test  drill two 15mm holes fill one with CA and one with epoxy 
let them dry drill a 5mm hole in the centre of each and insert a 5mm 
metal rod in each then place a load on each you will find that the CA 
hole opens with a less load then the epoxy.

Or a crude way is put a block of glue in a vice and see which shatters 
first

Barrie,

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