Molecular formula :
nature : water-resistant paint its anti means water-soluble lead to water staining ability. In theory, the pigment should not dissolve in water, but in fact, some paint-will dissolve in water, caused water staining. May staining the water level (with the soiled gray color grading cards, the five best and the worst one) said he would. If the level is between the two levels, available 4 ~ ~ 4,2 5,3 3,1 ~ ~ 2 said he would. Use cold-water method using distilled water or water with electric oscillation method of detection method.
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