The hardness of the coating of lacquer folding
The coating of lacquer dries is consolidated, nails can not pull, general construction in three days if the various climate conditions good fingernails can still move, should be regarded as the main factor is the choice of coating is too soft, the emulsion is not appropriate.
Guizhou stone that they in the preparation of lacquer, adoption and preparation of emulsion latex paint the same, which led to the formulation of the lacquer emulsion content is low, the film due to the presence of many sand makes the coating can not be tight. The paint for R & D personnel research: the bond strength of the emulsion coatings should not be less than 3MPa, the minimum film forming temperature should not be lower than 15 DEG C. A higher minimum film forming temperature may form a defect that is not easy to film when the temperature is low, and can be treated by a proper addition of membrane additives. The film forming auxiliaries can be completely evaporated after the coating is dry, which generally does not affect the function of the coating. Stone is the choice of composite emulsion with higher bond, minimum film forming temperature is higher, the processing of the coating soft questions fundamentally.