The coating of real stone paint is very hard after drying and the nail can't be shaken. If the real stone paint can still be shaken with nails after three days of construction under good weather conditions, it should be considered that the coating is too soft. The main reason is to choose The lotion is not appropriate.
When preparing the real stone paint, they adopt the same emulsion as the latex paint, which results in a lower emulsion content in the real stone paint formulation, and the coating is not tight enough due to the presence of a large amount of sandstone during film formation. Research by paint research and development personnel: The bond strength of emulsions prepared for real stone paint should not be lower than 3 MPa, and the minimum film formation temperature should not be lower than 15 °C. A higher minimum film formation temperature may cause a defect that film formation is not easy when the temperature is low, and can be solved by appropriately adding a film-forming auxiliary. The film-forming auxiliary agent can be completely volatilized after the coating is dried, and generally does not affect the performance of the coating film. True stone paint selects a composite emulsion with higher adhesion and lower film formation temperature, which fundamentally solves the problem that the coating is too soft.
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