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Hi Ted,
As for any filler, 3 things are critical for its use:
- No chemical interaction with the resin: Will insure that either the
filler or the resin are affected by the other materials and chemicals in
play.
- Good wetability: the filler has to mix with the resin. It must be
wetted easily by the resin. An appropriate surface treatment can be done
if the material itself isn't wetable enough.
- Good adhesion with the resin: For obvious strength reasons. Goes not
together with the wetability, so you can create a weak bond if the resin
adhesion with the filler is lost during cure.
The best way is to check if cellulose (cotton is about 100% cellulose)
is affected by the vinyl-ester chemicals, then test if the mix is good
and if the cured resistance is Ok... Then you can probably use it.
From a materials science engineer
Luc
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