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Performance phenomenon
paint after opening the barrel appearance state is basically normal, but when stirring with utensils can feel the bottom layer has a lump phenomenon, or the bottom powder content is significantly more than the upper layer, serious when the block part can not be stirred;
the reasons
1, primer and primer this situation is mainly the paint powder content is high, the proportion of powder is large and precipitation;
2, the amount of anti-sinking agent is too small;
3, the anti-sink system is not reasonable,
4, anti-sink agent and powder is not dispersed well, did not play its due role;
5, the solvent in the paint is not enough to make the base material completely dissolved and form a stable and uniform state;
6, paint storage time is too long, beyond the shelf life, anti-sink system lost effect.
suggested treatment methods
1, as far as possible to choose a good anti-sinking powder;
2, increase the amount of anti-sinking agent;
3, re-select the anti-sinking system;
4, pay attention to the dispersion process, strictly according to the production process, if necessary, increase the amount of dispersant,
5, reasonable choice of solvents, strengthen solvent solubility .
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