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post #52 of Old 06-26-2008
sailingdog
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The epoxy isn't adhering to the bundles of fibers...it is adhering to the sizing that is holding the bundles of fibers together... big difference. It is basically a surface coating and the major difference is simple. In a true laminate, like using polyester resin and CSM—the fibers can no longer move relative to one another as they are encased and adhered to by the surrounding resin. In the case of using CSM and epoxy, the epoxy is adhering to the binder coating, but under high stress loading the fibers may shear their physical connection to the binding sizing, which isn't really all that strong as a material or as an adhesive, and the fibers will then be able to move relative to the material surrounding them. Which do you think is stronger???

Sailingdog

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Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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