BYK YouTube Wetting of Metal Substrates, Aggregation and Deaggregation of Red Pigments
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You can see the effects of additives on BYK YouTube. Wetting on metal substrates; Poor wetting of the metal panel substrate. The use of BYK wetting agents improves the wettability of the substrate. Samples without additives show poor wetting (beading). The samples contain BYK polysiloxane additives that reduce surface tension, resulting in improved wettability on the substrate. Aggregation and de-aggregation of red pigments; The pigment dispersion was prepared without the wetting dispersant additive. The pigments strongly aggregate, and large clumps are clearly visible. In the second dispersion, the pigments are fully stabilized by the appropriate BYK wetting dispersant. As a result, the pigments are completely de-aggregated, and large particles are no longer visible.
