A means for a fairly rapid determination of a velocity that is characteristic of the dynamic wetting behavior during the vertical entrance of a filament into a liquid bath is described. The velocity chosen is that at which the dynamic contact angle is increased to 90° and has been named "rise-cancelling velocity." Sensitivity of this velocity to the composition of the filament and liquid, and to temperature is generally consistent with equilibrium wettability and with the viscosity of the liquid, although an adequate physical model has not as yet been developed.
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