Is it true moisture can still seep through the varnish on cane rods? If so, how can that happen? Is it like reverse Gortex????????
Just wondering.
Thanks,
Trout120
Just wondering.
Thanks,
Trout120
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Trout120 |
Moisture and varnish |
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Is it true moisture can still seep through the varnish on cane rods? If so, how can that happen? Is it like reverse Gortex????????
Just wondering. Thanks, Trout120 |
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mer |
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To the best of my knowledge, the varnishes used on rods are water resistant, not water proof, yes, I believe moisture can still make it's way through.
Slowly, perhaps and in a lesser amount. That's why lots of people still recommend a coating of wax over the varnish (because the wax is waterproof).
I could be wrong on this.
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flyman.flyfishingarkan... |
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If you drop a rod in the river or fish all day in a rain storm, the varnish will keep the bamboo from rapidly soaking up water. If you go from an arid area to
a humid one or visey-versy, the rod will absorb moisture until it is in equilibrium, gaining it when going to humid and loosing when going to arid. Water
molecules are smaller than than the spaces in the varnish molecules. They will rattle around and finally diffuse to the other side of the coating. The rate of
diffusion is dependent on temperature, coating type, and thickness. Full impregnation will keep out the most moisture. Even aluminum will absorb moisture.
Larry |
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